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Author SHA1 Message Date
Greg Kroah-Hartman
338046dc91 This is the 4.19.180 stable release
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Merge 4.19.180 into android-4.19-stable

Changes in 4.19.180
	btrfs: raid56: simplify tracking of Q stripe presence
	btrfs: fix raid6 qstripe kmap
	btrfs: validate qgroup inherit for SNAP_CREATE_V2 ioctl
	btrfs: free correct amount of space in btrfs_delayed_inode_reserve_metadata
	btrfs: unlock extents in btrfs_zero_range in case of quota reservation errors
	PM: runtime: Update device status before letting suppliers suspend
	dm bufio: subtract the number of initial sectors in dm_bufio_get_device_size
	drm/amdgpu: fix parameter error of RREG32_PCIE() in amdgpu_regs_pcie
	usbip: tools: fix build error for multiple definition
	Revert "zram: close udev startup race condition as default groups"
	block: genhd: add 'groups' argument to device_add_disk
	nvme: register ns_id attributes as default sysfs groups
	aoe: register default groups with device_add_disk()
	zram: register default groups with device_add_disk()
	virtio-blk: modernize sysfs attribute creation
	ALSA: ctxfi: cthw20k2: fix mask on conf to allow 4 bits
	RDMA/rxe: Fix missing kconfig dependency on CRYPTO
	rsxx: Return -EFAULT if copy_to_user() fails
	dm verity: fix FEC for RS roots unaligned to block size
	r8169: fix resuming from suspend on RTL8105e if machine runs on battery
	net: dsa: add GRO support via gro_cells
	dm table: fix iterate_devices based device capability checks
	dm table: fix DAX iterate_devices based device capability checks
	dm table: fix zoned iterate_devices based device capability checks
	iommu/amd: Fix sleeping in atomic in increase_address_space()
	mwifiex: pcie: skip cancel_work_sync() on reset failure path
	platform/x86: acer-wmi: Cleanup ACER_CAP_FOO defines
	platform/x86: acer-wmi: Cleanup accelerometer device handling
	platform/x86: acer-wmi: Add new force_caps module parameter
	platform/x86: acer-wmi: Add ACER_CAP_SET_FUNCTION_MODE capability flag
	platform/x86: acer-wmi: Add support for SW_TABLET_MODE on Switch devices
	platform/x86: acer-wmi: Add ACER_CAP_KBD_DOCK quirk for the Aspire Switch 10E SW3-016
	HID: mf: add support for 0079:1846 Mayflash/Dragonrise USB Gamecube Adapter
	media: cx23885: add more quirks for reset DMA on some AMD IOMMU
	ASoC: Intel: bytcr_rt5640: Add quirk for ARCHOS Cesium 140
	PCI: Add function 1 DMA alias quirk for Marvell 9215 SATA controller
	misc: eeprom_93xx46: Add quirk to support Microchip 93LC46B eeprom
	drm/msm/a5xx: Remove overwriting A5XX_PC_DBG_ECO_CNTL register
	mmc: sdhci-of-dwcmshc: set SDHCI_QUIRK2_PRESET_VALUE_BROKEN
	Linux 4.19.180

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I1d133776c03abf37203427cbc1c0edfa9c396edd
2021-03-11 14:27:00 +01:00
Hannes Reinecke
1bf6a186c4 block: genhd: add 'groups' argument to device_add_disk
commit fef912bf860e8e7e48a2bfb978a356bba743a8b7 upstream.

Update device_add_disk() to take an 'groups' argument so that
individual drivers can register a device with additional sysfs
attributes.
This avoids race condition the driver would otherwise have if these
groups were to be created with sysfs_add_groups().

Signed-off-by: Martin Wilck <martin.wilck@suse.com>
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-11 14:04:59 +01:00
Greg Kroah-Hartman
6fbaea28a7 Revert "block: split .sysfs_lock into two locks"
This reverts commit fa137b50f3.

It breaks the abi and is not needed in Android devices.

Bug: 161946584
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ia9b92ae9b03e3e12b13584373448160c767bf4cb
2021-03-05 07:01:53 +01:00
Greg Kroah-Hartman
b0a6dfc3a2 Revert "block: fix race between switching elevator and removing queues"
This reverts commit 6c63a7be2b.

It breaks the abi and is not needed in Android devices.

Bug: 161946584
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ic797c4aef587cf8b8ed62b91e60cb5b236af8036
2021-03-05 07:01:51 +01:00
Greg Kroah-Hartman
c44751f1ba Revert "block: don't release queue's sysfs lock during switching elevator"
This reverts commit ee3d84e67d.

It breaks the abi and is not needed in Android devices.

Bug: 161946584
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ia641807b9d11b32ce1d4d71f3f0672f116ecaa0e
2021-03-05 07:01:50 +01:00
Greg Kroah-Hartman
6455a150fa Merge 4.19.178 into android-4.19-stable
Changes in 4.19.178
	HID: make arrays usage and value to be the same
	USB: quirks: sort quirk entries
	usb: quirks: add quirk to start video capture on ELMO L-12F document camera reliable
	ntfs: check for valid standard information attribute
	arm64: tegra: Add power-domain for Tegra210 HDA
	scripts: use pkg-config to locate libcrypto
	scripts: set proper OpenSSL include dir also for sign-file
	block: add helper for checking if queue is registered
	block: split .sysfs_lock into two locks
	block: fix race between switching elevator and removing queues
	block: don't release queue's sysfs lock during switching elevator
	NET: usb: qmi_wwan: Adding support for Cinterion MV31
	cifs: Set CIFS_MOUNT_USE_PREFIX_PATH flag on setting cifs_sb->prepath.
	scripts/recordmcount.pl: support big endian for ARCH sh
	jump_label/lockdep: Assert we hold the hotplug lock for _cpuslocked() operations
	locking/static_key: Fix false positive warnings on concurrent dec/inc
	vmlinux.lds.h: add DWARF v5 sections
	kdb: Make memory allocations more robust
	PCI: qcom: Use PHY_REFCLK_USE_PAD only for ipq8064
	bfq: Avoid false bfq queue merging
	ALSA: usb-audio: Fix PCM buffer allocation in non-vmalloc mode
	MIPS: vmlinux.lds.S: add missing PAGE_ALIGNED_DATA() section
	random: fix the RNDRESEEDCRNG ioctl
	ath10k: Fix error handling in case of CE pipe init failure
	Bluetooth: btqcomsmd: Fix a resource leak in error handling paths in the probe function
	Bluetooth: Fix initializing response id after clearing struct
	ARM: dts: exynos: correct PMIC interrupt trigger level on Artik 5
	ARM: dts: exynos: correct PMIC interrupt trigger level on Monk
	ARM: dts: exynos: correct PMIC interrupt trigger level on Rinato
	ARM: dts: exynos: correct PMIC interrupt trigger level on Spring
	ARM: dts: exynos: correct PMIC interrupt trigger level on Arndale Octa
	ARM: dts: exynos: correct PMIC interrupt trigger level on Odroid XU3 family
	arm64: dts: exynos: correct PMIC interrupt trigger level on TM2
	arm64: dts: exynos: correct PMIC interrupt trigger level on Espresso
	bpf: Avoid warning when re-casting __bpf_call_base into __bpf_call_base_args
	arm64: dts: allwinner: A64: properly connect USB PHY to port 0
	arm64: dts: allwinner: Drop non-removable from SoPine/LTS SD card
	arm64: dts: allwinner: A64: Limit MMC2 bus frequency to 150 MHz
	cpufreq: brcmstb-avs-cpufreq: Free resources in error path
	cpufreq: brcmstb-avs-cpufreq: Fix resource leaks in ->remove()
	ACPICA: Fix exception code class checks
	usb: gadget: u_audio: Free requests only after callback
	Bluetooth: drop HCI device reference before return
	Bluetooth: Put HCI device if inquiry procedure interrupts
	memory: ti-aemif: Drop child node when jumping out loop
	ARM: dts: Configure missing thermal interrupt for 4430
	usb: dwc2: Do not update data length if it is 0 on inbound transfers
	usb: dwc2: Abort transaction after errors with unknown reason
	usb: dwc2: Make "trimming xfer length" a debug message
	staging: rtl8723bs: wifi_regd.c: Fix incorrect number of regulatory rules
	ARM: dts: armada388-helios4: assign pinctrl to LEDs
	ARM: dts: armada388-helios4: assign pinctrl to each fan
	arm64: dts: msm8916: Fix reserved and rfsa nodes unit address
	ARM: s3c: fix fiq for clang IAS
	soc: aspeed: snoop: Add clock control logic
	bpf_lru_list: Read double-checked variable once without lock
	ath9k: fix data bus crash when setting nf_override via debugfs
	ibmvnic: Set to CLOSED state even on error
	bnxt_en: reverse order of TX disable and carrier off
	xen/netback: fix spurious event detection for common event case
	mac80211: fix potential overflow when multiplying to u32 integers
	bpf: Fix bpf_fib_lookup helper MTU check for SKB ctx
	tcp: fix SO_RCVLOWAT related hangs under mem pressure
	cxgb4/chtls/cxgbit: Keeping the max ofld immediate data size same in cxgb4 and ulds
	b43: N-PHY: Fix the update of coef for the PHY revision >= 3case
	ibmvnic: add memory barrier to protect long term buffer
	ibmvnic: skip send_request_unmap for timeout reset
	net: amd-xgbe: Reset the PHY rx data path when mailbox command timeout
	net: amd-xgbe: Fix NETDEV WATCHDOG transmit queue timeout warning
	net: amd-xgbe: Reset link when the link never comes back
	net: amd-xgbe: Fix network fluctuations when using 1G BELFUSE SFP
	net: mvneta: Remove per-cpu queue mapping for Armada 3700
	fbdev: aty: SPARC64 requires FB_ATY_CT
	drm/gma500: Fix error return code in psb_driver_load()
	gma500: clean up error handling in init
	crypto: sun4i-ss - fix kmap usage
	drm/amdgpu: Fix macro name _AMDGPU_TRACE_H_ in preprocessor if condition
	MIPS: c-r4k: Fix section mismatch for loongson2_sc_init
	MIPS: lantiq: Explicitly compare LTQ_EBU_PCC_ISTAT against 0
	media: i2c: ov5670: Fix PIXEL_RATE minimum value
	media: camss: missing error code in msm_video_register()
	media: vsp1: Fix an error handling path in the probe function
	media: em28xx: Fix use-after-free in em28xx_alloc_urbs
	media: media/pci: Fix memleak in empress_init
	media: tm6000: Fix memleak in tm6000_start_stream
	ASoC: cs42l56: fix up error handling in probe
	crypto: bcm - Rename struct device_private to bcm_device_private
	drm/amd/display: Fix 10/12 bpc setup in DCE output bit depth reduction.
	media: lmedm04: Fix misuse of comma
	media: qm1d1c0042: fix error return code in qm1d1c0042_init()
	media: cx25821: Fix a bug when reallocating some dma memory
	media: pxa_camera: declare variable when DEBUG is defined
	media: uvcvideo: Accept invalid bFormatIndex and bFrameIndex values
	crypto: talitos - Work around SEC6 ERRATA (AES-CTR mode data size error)
	ata: ahci_brcm: Add back regulators management
	ASoC: cpcap: fix microphone timeslot mask
	f2fs: fix to avoid inconsistent quota data
	drm/amdgpu: Prevent shift wrapping in amdgpu_read_mask()
	Drivers: hv: vmbus: Avoid use-after-free in vmbus_onoffer_rescind()
	btrfs: clarify error returns values in __load_free_space_cache
	hwrng: timeriomem - Fix cooldown period calculation
	crypto: ecdh_helper - Ensure 'len >= secret.len' in decode_key()
	ima: Free IMA measurement buffer on error
	ima: Free IMA measurement buffer after kexec syscall
	fs/jfs: fix potential integer overflow on shift of a int
	jffs2: fix use after free in jffs2_sum_write_data()
	capabilities: Don't allow writing ambiguous v3 file capabilities
	clk: meson: clk-pll: fix initializing the old rate (fallback) for a PLL
	quota: Fix memory leak when handling corrupted quota file
	spi: cadence-quadspi: Abort read if dummy cycles required are too many
	clk: sunxi-ng: h6: Fix CEC clock
	HID: core: detect and skip invalid inputs to snto32()
	dmaengine: fsldma: Fix a resource leak in the remove function
	dmaengine: fsldma: Fix a resource leak in an error handling path of the probe function
	dmaengine: owl-dma: Fix a resource leak in the remove function
	dmaengine: hsu: disable spurious interrupt
	mfd: bd9571mwv: Use devm_mfd_add_devices()
	fdt: Properly handle "no-map" field in the memory region
	of/fdt: Make sure no-map does not remove already reserved regions
	power: reset: at91-sama5d2_shdwc: fix wkupdbc mask
	rtc: s5m: select REGMAP_I2C
	clocksource/drivers/mxs_timer: Add missing semicolon when DEBUG is defined
	RDMA/mlx5: Use the correct obj_id upon DEVX TIR creation
	clk: sunxi-ng: h6: Fix clock divider range on some clocks
	regulator: axp20x: Fix reference cout leak
	certs: Fix blacklist flag type confusion
	spi: atmel: Put allocated master before return
	regulator: s5m8767: Drop regulators OF node reference
	isofs: release buffer head before return
	auxdisplay: ht16k33: Fix refresh rate handling
	IB/umad: Return EIO in case of when device disassociated
	IB/umad: Return EPOLLERR in case of when device disassociated
	KVM: PPC: Make the VMX instruction emulation routines static
	powerpc/47x: Disable 256k page size
	mmc: usdhi6rol0: Fix a resource leak in the error handling path of the probe
	mmc: renesas_sdhi_internal_dmac: Fix DMA buffer alignment from 8 to 128-bytes
	ARM: 9046/1: decompressor: Do not clear SCTLR.nTLSMD for ARMv7+ cores
	amba: Fix resource leak for drivers without .remove
	tracepoint: Do not fail unregistering a probe due to memory failure
	perf tools: Fix DSO filtering when not finding a map for a sampled address
	RDMA/rxe: Fix coding error in rxe_recv.c
	RDMA/rxe: Correct skb on loopback path
	spi: stm32: properly handle 0 byte transfer
	mfd: wm831x-auxadc: Prevent use after free in wm831x_auxadc_read_irq()
	powerpc/pseries/dlpar: handle ibm, configure-connector delay status
	powerpc/8xx: Fix software emulation interrupt
	clk: qcom: gcc-msm8998: Fix Alpha PLL type for all GPLLs
	spi: pxa2xx: Fix the controller numbering for Wildcat Point
	Input: sur40 - fix an error code in sur40_probe()
	perf intel-pt: Fix missing CYC processing in PSB
	perf test: Fix unaligned access in sample parsing test
	Input: elo - fix an error code in elo_connect()
	sparc64: only select COMPAT_BINFMT_ELF if BINFMT_ELF is set
	misc: eeprom_93xx46: Fix module alias to enable module autoprobe
	misc: eeprom_93xx46: Add module alias to avoid breaking support for non device tree users
	pwm: rockchip: rockchip_pwm_probe(): Remove superfluous clk_unprepare()
	VMCI: Use set_page_dirty_lock() when unregistering guest memory
	PCI: Align checking of syscall user config accessors
	drm/msm/dsi: Correct io_start for MSM8994 (20nm PHY)
	ext4: fix potential htree index checksum corruption
	regmap: sdw: use _no_pm functions in regmap_read/write
	i40e: Fix flow for IPv6 next header (extension header)
	i40e: Add zero-initialization of AQ command structures
	i40e: Fix overwriting flow control settings during driver loading
	i40e: Fix VFs not created
	i40e: Fix add TC filter for IPv6
	net/mlx4_core: Add missed mlx4_free_cmd_mailbox()
	vxlan: move debug check after netdev unregister
	ocfs2: fix a use after free on error
	mm/memory.c: fix potential pte_unmap_unlock pte error
	mm/hugetlb: fix potential double free in hugetlb_register_node() error path
	r8169: fix jumbo packet handling on RTL8168e
	arm64: Add missing ISB after invalidating TLB in __primary_switch
	i2c: brcmstb: Fix brcmstd_send_i2c_cmd condition
	mm/rmap: fix potential pte_unmap on an not mapped pte
	scsi: bnx2fc: Fix Kconfig warning & CNIC build errors
	blk-settings: align max_sectors on "logical_block_size" boundary
	ACPI: property: Fix fwnode string properties matching
	ACPI: configfs: add missing check after configfs_register_default_group()
	HID: wacom: Ignore attempts to overwrite the touch_max value from HID
	Input: raydium_ts_i2c - do not send zero length
	Input: xpad - add support for PowerA Enhanced Wired Controller for Xbox Series X|S
	Input: joydev - prevent potential read overflow in ioctl
	Input: i8042 - add ASUS Zenbook Flip to noselftest list
	USB: serial: option: update interface mapping for ZTE P685M
	usb: musb: Fix runtime PM race in musb_queue_resume_work
	usb: dwc3: gadget: Fix setting of DEPCFG.bInterval_m1
	usb: dwc3: gadget: Fix dep->interval for fullspeed interrupt
	USB: serial: ftdi_sio: fix FTX sub-integer prescaler
	USB: serial: mos7840: fix error code in mos7840_write()
	USB: serial: mos7720: fix error code in mos7720_write()
	ALSA: hda/realtek: modify EAPD in the ALC886
	tpm_tis: Fix check_locality for correct locality acquisition
	tpm_tis: Clean up locality release
	KEYS: trusted: Fix migratable=1 failing
	btrfs: abort the transaction if we fail to inc ref in btrfs_copy_root
	btrfs: fix reloc root leak with 0 ref reloc roots on recovery
	btrfs: fix extent buffer leak on failure to copy root
	crypto: arm64/sha - add missing module aliases
	crypto: sun4i-ss - checking sg length is not sufficient
	crypto: sun4i-ss - handle BigEndian for cipher
	seccomp: Add missing return in non-void function
	misc: rtsx: init of rts522a add OCP power off when no card is present
	drivers/misc/vmw_vmci: restrict too big queue size in qp_host_alloc_queue
	pstore: Fix typo in compression option name
	dts64: mt7622: fix slow sd card access
	staging/mt7621-dma: mtk-hsdma.c->hsdma-mt7621.c
	staging: gdm724x: Fix DMA from stack
	staging: rtl8188eu: Add Edimax EW-7811UN V2 to device table
	media: ipu3-cio2: Fix mbus_code processing in cio2_subdev_set_fmt()
	x86/reboot: Force all cpus to exit VMX root if VMX is supported
	floppy: reintroduce O_NDELAY fix
	arm64: uprobe: Return EOPNOTSUPP for AARCH32 instruction probing
	watchdog: mei_wdt: request stop on unregister
	mtd: spi-nor: hisi-sfc: Put child node np on error path
	fs/affs: release old buffer head on error path
	seq_file: document how per-entry resources are managed.
	x86: fix seq_file iteration for pat/memtype.c
	hugetlb: fix copy_huge_page_from_user contig page struct assumption
	libnvdimm/dimm: Avoid race between probe and available_slots_show()
	arm64: Extend workaround for erratum 1024718 to all versions of Cortex-A55
	module: Ignore _GLOBAL_OFFSET_TABLE_ when warning for undefined symbols
	mmc: sdhci-esdhc-imx: fix kernel panic when remove module
	gpio: pcf857x: Fix missing first interrupt
	printk: fix deadlock when kernel panic
	cpufreq: intel_pstate: Get per-CPU max freq via MSR_HWP_CAPABILITIES if available
	f2fs: fix out-of-repair __setattr_copy()
	sparc32: fix a user-triggerable oops in clear_user()
	gfs2: Don't skip dlm unlock if glock has an lvb
	dm: fix deadlock when swapping to encrypted device
	dm era: Recover committed writeset after crash
	dm era: Verify the data block size hasn't changed
	dm era: Fix bitset memory leaks
	dm era: Use correct value size in equality function of writeset tree
	dm era: Reinitialize bitset cache before digesting a new writeset
	dm era: only resize metadata in preresume
	icmp: introduce helper for nat'd source address in network device context
	icmp: allow icmpv6_ndo_send to work with CONFIG_IPV6=n
	gtp: use icmp_ndo_send helper
	sunvnet: use icmp_ndo_send helper
	xfrm: interface: use icmp_ndo_send helper
	ipv6: icmp6: avoid indirect call for icmpv6_send()
	ipv6: silence compilation warning for non-IPV6 builds
	net: icmp: pass zeroed opts from icmp{,v6}_ndo_send before sending
	dm era: Update in-core bitset after committing the metadata
	net: qrtr: Fix memory leak in qrtr_tun_open
	ARM: dts: aspeed: Add LCLK to lpc-snoop
	Linux 4.19.178

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I8c07c10dd29a1233f238b533622d7b32bd22bdb0
2021-03-05 07:01:18 +01:00
Mikulas Patocka
108d5817b0 blk-settings: align max_sectors on "logical_block_size" boundary
commit 97f433c3601a24d3513d06f575a389a2ca4e11e4 upstream.

We get I/O errors when we run md-raid1 on the top of dm-integrity on the
top of ramdisk.
device-mapper: integrity: Bio not aligned on 8 sectors: 0xff00, 0xff
device-mapper: integrity: Bio not aligned on 8 sectors: 0xff00, 0xff
device-mapper: integrity: Bio not aligned on 8 sectors: 0xffff, 0x1
device-mapper: integrity: Bio not aligned on 8 sectors: 0xffff, 0x1
device-mapper: integrity: Bio not aligned on 8 sectors: 0x8048, 0xff
device-mapper: integrity: Bio not aligned on 8 sectors: 0x8147, 0xff
device-mapper: integrity: Bio not aligned on 8 sectors: 0x8246, 0xff
device-mapper: integrity: Bio not aligned on 8 sectors: 0x8345, 0xbb

The ramdisk device has logical_block_size 512 and max_sectors 255. The
dm-integrity device uses logical_block_size 4096 and it doesn't affect the
"max_sectors" value - thus, it inherits 255 from the ramdisk. So, we have
a device with max_sectors not aligned on logical_block_size.

The md-raid device sees that the underlying leg has max_sectors 255 and it
will split the bios on 255-sector boundary, making the bios unaligned on
logical_block_size.

In order to fix the bug, we round down max_sectors to logical_block_size.

Cc: stable@vger.kernel.org
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-04 09:39:51 +01:00
Jan Kara
904e295323 bfq: Avoid false bfq queue merging
commit 41e76c85660c022c6bf5713bfb6c21e64a487cec upstream.

bfq_setup_cooperator() uses bfqd->in_serv_last_pos so detect whether it
makes sense to merge current bfq queue with the in-service queue.
However if the in-service queue is freshly scheduled and didn't dispatch
any requests yet, bfqd->in_serv_last_pos is stale and contains value
from the previously scheduled bfq queue which can thus result in a bogus
decision that the two queues should be merged. This bug can be observed
for example with the following fio jobfile:

[global]
direct=0
ioengine=sync
invalidate=1
size=1g
rw=read

[reader]
numjobs=4
directory=/mnt

where the 4 processes will end up in the one shared bfq queue although
they do IO to physically very distant files (for some reason I was able to
observe this only with slice_idle=1ms setting).

Fix the problem by invalidating bfqd->in_serv_last_pos when switching
in-service queue.

Fixes: 058fdecc6de7 ("block, bfq: fix in-service-queue check for queue merging")
CC: stable@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Acked-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-04 09:39:31 +01:00
Ming Lei
ee3d84e67d block: don't release queue's sysfs lock during switching elevator
commit b89f625e28d44552083f43752f62d8621ded0a04 upstream.

cecf5d87ff20 ("block: split .sysfs_lock into two locks") starts to
release & acquire sysfs_lock before registering/un-registering elevator
queue during switching elevator for avoiding potential deadlock from
showing & storing 'queue/iosched' attributes and removing elevator's
kobject.

Turns out there isn't such deadlock because 'q->sysfs_lock' isn't
required in .show & .store of queue/iosched's attributes, and just
elevator's sysfs lock is acquired in elv_iosched_store() and
elv_iosched_show(). So it is safe to hold queue's sysfs lock when
registering/un-registering elevator queue.

The biggest issue is that commit cecf5d87ff20 assumes that concurrent
write on 'queue/scheduler' can't happen. However, this assumption isn't
true, because kernfs_fop_write() only guarantees that concurrent write
aren't called on the same open file, but the write could be from
different open on the file. So we can't release & re-acquire queue's
sysfs lock during switching elevator, otherwise use-after-free on
elevator could be triggered.

Fixes the issue by not releasing queue's sysfs lock during switching
elevator.

Fixes: cecf5d87ff20 ("block: split .sysfs_lock into two locks")
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Mike Snitzer <snitzer@redhat.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
(jwang: adjust ctx for 4.19)
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-04 09:39:30 +01:00
Ming Lei
6c63a7be2b block: fix race between switching elevator and removing queues
commit 0a67b5a926e63ff5492c3c675eab5900580d056d upstream.

cecf5d87ff20 ("block: split .sysfs_lock into two locks") starts to
release & actuire sysfs_lock again during switching elevator. So it
isn't enough to prevent switching elevator from happening by simply
clearing QUEUE_FLAG_REGISTERED with holding sysfs_lock, because
in-progress switch still can move on after re-acquiring the lock,
meantime the flag of QUEUE_FLAG_REGISTERED won't get checked.

Fixes this issue by checking 'q->elevator' directly & locklessly after
q->kobj is removed in blk_unregister_queue(), this way is safe because
q->elevator can't be changed at that time.

Fixes: cecf5d87ff20 ("block: split .sysfs_lock into two locks")
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Mike Snitzer <snitzer@redhat.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-04 09:39:30 +01:00
Ming Lei
fa137b50f3 block: split .sysfs_lock into two locks
commit cecf5d87ff2035127bb5a9ee054d0023a4a7cad3 upstream.

The kernfs built-in lock of 'kn->count' is held in sysfs .show/.store
path. Meantime, inside block's .show/.store callback, q->sysfs_lock is
required.

However, when mq & iosched kobjects are removed via
blk_mq_unregister_dev() & elv_unregister_queue(), q->sysfs_lock is held
too. This way causes AB-BA lock because the kernfs built-in lock of
'kn-count' is required inside kobject_del() too, see the lockdep warning[1].

On the other hand, it isn't necessary to acquire q->sysfs_lock for
both blk_mq_unregister_dev() & elv_unregister_queue() because
clearing REGISTERED flag prevents storing to 'queue/scheduler'
from being happened. Also sysfs write(store) is exclusive, so no
necessary to hold the lock for elv_unregister_queue() when it is
called in switching elevator path.

So split .sysfs_lock into two: one is still named as .sysfs_lock for
covering sync .store, the other one is named as .sysfs_dir_lock
for covering kobjects and related status change.

sysfs itself can handle the race between add/remove kobjects and
showing/storing attributes under kobjects. For switching scheduler
via storing to 'queue/scheduler', we use the queue flag of
QUEUE_FLAG_REGISTERED with .sysfs_lock for avoiding the race, then
we can avoid to hold .sysfs_lock during removing/adding kobjects.

[1]  lockdep warning
    ======================================================
    WARNING: possible circular locking dependency detected
    5.3.0-rc3-00044-g73277fc75ea0 #1380 Not tainted
    ------------------------------------------------------
    rmmod/777 is trying to acquire lock:
    00000000ac50e981 (kn->count#202){++++}, at: kernfs_remove_by_name_ns+0x59/0x72

    but task is already holding lock:
    00000000fb16ae21 (&q->sysfs_lock){+.+.}, at: blk_unregister_queue+0x78/0x10b

    which lock already depends on the new lock.

    the existing dependency chain (in reverse order) is:

    -> #1 (&q->sysfs_lock){+.+.}:
           __lock_acquire+0x95f/0xa2f
           lock_acquire+0x1b4/0x1e8
           __mutex_lock+0x14a/0xa9b
           blk_mq_hw_sysfs_show+0x63/0xb6
           sysfs_kf_seq_show+0x11f/0x196
           seq_read+0x2cd/0x5f2
           vfs_read+0xc7/0x18c
           ksys_read+0xc4/0x13e
           do_syscall_64+0xa7/0x295
           entry_SYSCALL_64_after_hwframe+0x49/0xbe

    -> #0 (kn->count#202){++++}:
           check_prev_add+0x5d2/0xc45
           validate_chain+0xed3/0xf94
           __lock_acquire+0x95f/0xa2f
           lock_acquire+0x1b4/0x1e8
           __kernfs_remove+0x237/0x40b
           kernfs_remove_by_name_ns+0x59/0x72
           remove_files+0x61/0x96
           sysfs_remove_group+0x81/0xa4
           sysfs_remove_groups+0x3b/0x44
           kobject_del+0x44/0x94
           blk_mq_unregister_dev+0x83/0xdd
           blk_unregister_queue+0xa0/0x10b
           del_gendisk+0x259/0x3fa
           null_del_dev+0x8b/0x1c3 [null_blk]
           null_exit+0x5c/0x95 [null_blk]
           __se_sys_delete_module+0x204/0x337
           do_syscall_64+0xa7/0x295
           entry_SYSCALL_64_after_hwframe+0x49/0xbe

    other info that might help us debug this:

     Possible unsafe locking scenario:

           CPU0                    CPU1
           ----                    ----
      lock(&q->sysfs_lock);
                                   lock(kn->count#202);
                                   lock(&q->sysfs_lock);
      lock(kn->count#202);

     *** DEADLOCK ***

    2 locks held by rmmod/777:
     #0: 00000000e69bd9de (&lock){+.+.}, at: null_exit+0x2e/0x95 [null_blk]
     #1: 00000000fb16ae21 (&q->sysfs_lock){+.+.}, at: blk_unregister_queue+0x78/0x10b

    stack backtrace:
    CPU: 0 PID: 777 Comm: rmmod Not tainted 5.3.0-rc3-00044-g73277fc75ea0 #1380
    Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS ?-20180724_192412-buildhw-07.phx4
    Call Trace:
     dump_stack+0x9a/0xe6
     check_noncircular+0x207/0x251
     ? print_circular_bug+0x32a/0x32a
     ? find_usage_backwards+0x84/0xb0
     check_prev_add+0x5d2/0xc45
     validate_chain+0xed3/0xf94
     ? check_prev_add+0xc45/0xc45
     ? mark_lock+0x11b/0x804
     ? check_usage_forwards+0x1ca/0x1ca
     __lock_acquire+0x95f/0xa2f
     lock_acquire+0x1b4/0x1e8
     ? kernfs_remove_by_name_ns+0x59/0x72
     __kernfs_remove+0x237/0x40b
     ? kernfs_remove_by_name_ns+0x59/0x72
     ? kernfs_next_descendant_post+0x7d/0x7d
     ? strlen+0x10/0x23
     ? strcmp+0x22/0x44
     kernfs_remove_by_name_ns+0x59/0x72
     remove_files+0x61/0x96
     sysfs_remove_group+0x81/0xa4
     sysfs_remove_groups+0x3b/0x44
     kobject_del+0x44/0x94
     blk_mq_unregister_dev+0x83/0xdd
     blk_unregister_queue+0xa0/0x10b
     del_gendisk+0x259/0x3fa
     ? disk_events_poll_msecs_store+0x12b/0x12b
     ? check_flags+0x1ea/0x204
     ? mark_held_locks+0x1f/0x7a
     null_del_dev+0x8b/0x1c3 [null_blk]
     null_exit+0x5c/0x95 [null_blk]
     __se_sys_delete_module+0x204/0x337
     ? free_module+0x39f/0x39f
     ? blkcg_maybe_throttle_current+0x8a/0x718
     ? rwlock_bug+0x62/0x62
     ? __blkcg_punt_bio_submit+0xd0/0xd0
     ? trace_hardirqs_on_thunk+0x1a/0x20
     ? mark_held_locks+0x1f/0x7a
     ? do_syscall_64+0x4c/0x295
     do_syscall_64+0xa7/0x295
     entry_SYSCALL_64_after_hwframe+0x49/0xbe
    RIP: 0033:0x7fb696cdbe6b
    Code: 73 01 c3 48 8b 0d 1d 20 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 008
    RSP: 002b:00007ffec9588788 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0
    RAX: ffffffffffffffda RBX: 0000559e589137c0 RCX: 00007fb696cdbe6b
    RDX: 000000000000000a RSI: 0000000000000800 RDI: 0000559e58913828
    RBP: 0000000000000000 R08: 00007ffec9587701 R09: 0000000000000000
    R10: 00007fb696d4eae0 R11: 0000000000000206 R12: 00007ffec95889b0
    R13: 00007ffec95896b3 R14: 0000559e58913260 R15: 0000559e589137c0

Cc: Christoph Hellwig <hch@infradead.org>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Mike Snitzer <snitzer@redhat.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
(jwang:cherry picked from commit cecf5d87ff2035127bb5a9ee054d0023a4a7cad3,
adjust ctx for 4,19)
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-04 09:39:30 +01:00
Ming Lei
7f1ba7ee94 block: add helper for checking if queue is registered
commit 58c898ba370e68d39470cd0d932b524682c1f9be upstream.

There are 4 users which check if queue is registered, so add one helper
to check it.

Cc: Christoph Hellwig <hch@infradead.org>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Mike Snitzer <snitzer@redhat.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-04 09:39:29 +01:00
Greg Kroah-Hartman
bce09d96d6 This is the 4.19.177 stable release
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Merge 4.19.177 into android-4.19-stable

Changes in 4.19.177
	tracing: Do not count ftrace events in top level enable output
	tracing: Check length before giving out the filter buffer
	arm/xen: Don't probe xenbus as part of an early initcall
	arm64: dts: rockchip: Fix PCIe DT properties on rk3399
	platform/x86: hp-wmi: Disable tablet-mode reporting by default
	ovl: perform vfs_getxattr() with mounter creds
	cap: fix conversions on getxattr
	ovl: skip getxattr of security labels
	drm/amd/display: Fix dc_sink kref count in emulated_link_detect
	drm/amd/display: Free atomic state after drm_atomic_commit
	riscv: virt_addr_valid must check the address belongs to linear mapping
	bfq-iosched: Revert "bfq: Fix computation of shallow depth"
	ARM: dts: lpc32xx: Revert set default clock rate of HCLK PLL
	ARM: ensure the signal page contains defined contents
	ARM: kexec: fix oops after TLB are invalidated
	mt76: dma: fix a possible memory leak in mt76_add_fragment()
	bpf: Check for integer overflow when using roundup_pow_of_two()
	netfilter: xt_recent: Fix attempt to update deleted entry
	netfilter: flowtable: fix tcp and udp header checksum update
	xen/netback: avoid race in xenvif_rx_ring_slots_available()
	net: stmmac: set TxQ mode back to DCB after disabling CBS
	netfilter: conntrack: skip identical origin tuple in same zone only
	net: hns3: add a check for queue_id in hclge_reset_vf_queue()
	firmware_loader: align .builtin_fw to 8
	i2c: stm32f7: fix configuration of the digital filter
	h8300: fix PREEMPTION build, TI_PRE_COUNT undefined
	usb: dwc3: ulpi: fix checkpatch warning
	usb: dwc3: ulpi: Replace CPU-based busyloop with Protocol-based one
	net: fix iteration for sctp transport seq_files
	net/vmw_vsock: improve locking in vsock_connect_timeout()
	net: watchdog: hold device global xmit lock during tx disable
	vsock/virtio: update credit only if socket is not closed
	vsock: fix locking in vsock_shutdown()
	net/rds: restrict iovecs length for RDS_CMSG_RDMA_ARGS
	net/qrtr: restrict user-controlled length in qrtr_tun_write_iter()
	ovl: expand warning in ovl_d_real()
	x86/build: Disable CET instrumentation in the kernel for 32-bit too
	KVM: SEV: fix double locking due to incorrect backport
	net: qrtr: Fix port ID for control messages
	Xen/x86: don't bail early from clear_foreign_p2m_mapping()
	Xen/x86: also check kernel mapping in set_foreign_p2m_mapping()
	Xen/gntdev: correct dev_bus_addr handling in gntdev_map_grant_pages()
	Xen/gntdev: correct error checking in gntdev_map_grant_pages()
	xen/arm: don't ignore return errors from set_phys_to_machine
	xen-blkback: don't "handle" error by BUG()
	xen-netback: don't "handle" error by BUG()
	xen-scsiback: don't "handle" error by BUG()
	xen-blkback: fix error handling in xen_blkbk_map()
	scsi: qla2xxx: Fix crash during driver load on big endian machines
	kvm: check tlbs_dirty directly
	Linux 4.19.177

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I5bef9024912d4568ab7ee3869072c0c4350513f5
2021-02-23 15:49:34 +01:00
Lin Feng
c869f17315 bfq-iosched: Revert "bfq: Fix computation of shallow depth"
[ Upstream commit 388c705b95f23f317fa43e6abf9ff07b583b721a ]

This reverts commit 6d4d273588378c65915acaf7b2ee74e9dd9c130a.

bfq.limit_depth passes word_depths[] as shallow_depth down to sbitmap core
sbitmap_get_shallow, which uses just the number to limit the scan depth of
each bitmap word, formula:
scan_percentage_for_each_word = shallow_depth / (1 << sbimap->shift) * 100%

That means the comments's percentiles 50%, 75%, 18%, 37% of bfq are correct.
But after commit patch 'bfq: Fix computation of shallow depth', we use
sbitmap.depth instead, as a example in following case:

sbitmap.depth = 256, map_nr = 4, shift = 6; sbitmap_word.depth = 64.
The resulsts of computed bfqd->word_depths[] are {128, 192, 48, 96}, and
three of the numbers exceed core dirver's 'sbitmap_word.depth=64' limit
nothing.

Signed-off-by: Lin Feng <linf@wangsu.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-02-23 15:00:56 +01:00
Greg Kroah-Hartman
98d8ec1f71 This is the 4.19.176 stable release
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Merge 4.19.176 into android-4.19-stable

Changes in 4.19.176
	tracing/kprobe: Fix to support kretprobe events on unloaded modules
	block: fix NULL pointer dereference in register_disk
	fgraph: Initialize tracing_graph_pause at task creation
	remoteproc: qcom_q6v5_mss: Validate modem blob firmware size before load
	remoteproc: qcom_q6v5_mss: Validate MBA firmware size before load
	af_key: relax availability checks for skb size calculation
	regulator: core: avoid regulator_resolve_supply() race condition
	chtls: Fix potential resource leak
	pNFS/NFSv4: Try to return invalid layout in pnfs_layout_process()
	iwlwifi: mvm: take mutex for calling iwl_mvm_get_sync_time()
	iwlwifi: pcie: add a NULL check in iwl_pcie_txq_unmap
	iwlwifi: pcie: fix context info memory leak
	iwlwifi: mvm: guard against device removal in reprobe
	SUNRPC: Move simple_get_bytes and simple_get_netobj into private header
	SUNRPC: Handle 0 length opaque XDR object data properly
	lib/string: Add strscpy_pad() function
	include/trace/events/writeback.h: fix -Wstringop-truncation warnings
	memcg: fix a crash in wb_workfn when a device disappears
	Fix unsynchronized access to sev members through svm_register_enc_region
	block: don't hold q->sysfs_lock in elevator_init_mq
	blk-mq: don't hold q->sysfs_lock in blk_mq_map_swqueue
	squashfs: add more sanity checks in id lookup
	squashfs: add more sanity checks in inode lookup
	squashfs: add more sanity checks in xattr id lookup
	regulator: core: enable power when setting up constraints
	regulator: core: Clean enabling always-on regulators + their supplies
	regulator: Fix lockdep warning resolving supplies
	Linux 4.19.176

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I33c221717e4e5c3213a7a21a648933a013bb2753
2021-02-13 14:25:08 +01:00
Ming Lei
6ff18507a7 blk-mq: don't hold q->sysfs_lock in blk_mq_map_swqueue
commit c6ba933358f0d7a6a042b894dba20cc70396a6d3 upstream.

blk_mq_map_swqueue() is called from blk_mq_init_allocated_queue()
and blk_mq_update_nr_hw_queues(). For the former caller, the kobject
isn't exposed to userspace yet. For the latter caller, hctx sysfs entries
and debugfs are un-registered before updating nr_hw_queues.

On the other hand, commit 2f8f1336a48b ("blk-mq: always free hctx after
request queue is freed") moves freeing hctx into queue's release
handler, so there won't be race with queue release path too.

So don't hold q->sysfs_lock in blk_mq_map_swqueue().

Cc: Christoph Hellwig <hch@infradead.org>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Mike Snitzer <snitzer@redhat.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-13 13:51:15 +01:00
Ming Lei
44b07600ce block: don't hold q->sysfs_lock in elevator_init_mq
commit c48dac137a62a5d6fa1ef3fa445cbd9c43655a76 upstream.

The original comment says:

	q->sysfs_lock must be held to provide mutual exclusion between
	elevator_switch() and here.

Which is simply wrong. elevator_init_mq() is only called from
blk_mq_init_allocated_queue, which is always called before the request
queue is registered via blk_register_queue(), for dm-rq or normal rq
based driver. However, queue's kobject is only exposed and added to sysfs
in blk_register_queue(). So there isn't such race between elevator_switch()
and elevator_init_mq().

So avoid to hold q->sysfs_lock in elevator_init_mq().

Cc: Christoph Hellwig <hch@infradead.org>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Mike Snitzer <snitzer@redhat.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-13 13:51:15 +01:00
zhengbin
b0393aadc2 block: fix NULL pointer dereference in register_disk
commit 4d7c1d3fd7c7eda7dea351f071945e843a46c145 upstream.

If __device_add_disk-->bdi_register_owner-->bdi_register-->
bdi_register_va-->device_create_vargs fails, bdi->dev is still
NULL, __device_add_disk-->register_disk will visit bdi->dev->kobj.
This patch fixes that.

Signed-off-by: zhengbin <zhengbin13@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
2021-02-13 13:51:13 +01:00
Greg Kroah-Hartman
ea0aa59740 This is the 4.19.169 stable release
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Merge 4.19.169 into android-4.19-stable

Changes in 4.19.169
	ASoC: dapm: remove widget from dirty list on free
	x86/hyperv: check cpu mask after interrupt has been disabled
	tracing/kprobes: Do the notrace functions check without kprobes on ftrace
	MIPS: boot: Fix unaligned access with CONFIG_MIPS_RAW_APPENDED_DTB
	MIPS: relocatable: fix possible boot hangup with KASLR enabled
	ACPI: scan: Harden acpi_device_add() against device ID overflows
	mm/hugetlb: fix potential missing huge page size info
	dm snapshot: flush merged data before committing metadata
	dm integrity: fix the maximum number of arguments
	r8152: Add Lenovo Powered USB-C Travel Hub
	ext4: fix bug for rename with RENAME_WHITEOUT
	ARC: build: remove non-existing bootpImage from KBUILD_IMAGE
	ARC: build: add uImage.lzma to the top-level target
	ARC: build: add boot_targets to PHONY
	btrfs: fix transaction leak and crash after RO remount caused by qgroup rescan
	ethernet: ucc_geth: fix definition and size of ucc_geth_tx_global_pram
	bfq: Fix computation of shallow depth
	arch/arc: add copy_user_page() to <asm/page.h> to fix build error on ARC
	misdn: dsp: select CONFIG_BITREVERSE
	net: ethernet: fs_enet: Add missing MODULE_LICENSE
	ACPI: scan: add stub acpi_create_platform_device() for !CONFIG_ACPI
	drm/msm: Call msm_init_vram before binding the gpu
	ARM: picoxcell: fix missing interrupt-parent properties
	ima: Remove __init annotation from ima_pcrread()
	dump_common_audit_data(): fix racy accesses to ->d_name
	ASoC: meson: axg-tdm-interface: fix loopback
	ASoC: Intel: fix error code cnl_set_dsp_D0()
	NFS4: Fix use-after-free in trace_event_raw_event_nfs4_set_lock
	pNFS: Mark layout for return if return-on-close was not sent
	NFS/pNFS: Fix a leak of the layout 'plh_outstanding' counter
	NFS: nfs_igrab_and_active must first reference the superblock
	ext4: fix superblock checksum failure when setting password salt
	RDMA/usnic: Fix memleak in find_free_vf_and_create_qp_grp
	RDMA/mlx5: Fix wrong free of blue flame register on error
	mm, slub: consider rest of partial list if acquire_slab() fails
	net: sunrpc: interpret the return value of kstrtou32 correctly
	dm: eliminate potential source of excessive kernel log noise
	ALSA: firewire-tascam: Fix integer overflow in midi_port_work()
	ALSA: fireface: Fix integer overflow in transmit_midi_msg()
	netfilter: conntrack: fix reading nf_conntrack_buckets
	netfilter: nf_nat: Fix memleak in nf_nat_init
	kbuild: enforce -Werror=return-type
	Linux 4.19.169

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I74309249e2b6a77421acd7f8d19f60cc48c328db
2021-01-19 18:49:37 +01:00
Jan Kara
9f8b5931be bfq: Fix computation of shallow depth
[ Upstream commit 6d4d273588378c65915acaf7b2ee74e9dd9c130a ]

BFQ computes number of tags it allows to be allocated for each request type
based on tag bitmap. However it uses 1 << bitmap.shift as number of
available tags which is wrong. 'shift' is just an internal bitmap value
containing logarithm of how many bits bitmap uses in each bitmap word.
Thus number of tags allowed for some request types can be far to low.
Use proper bitmap.depth which has the number of tags instead.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-01-19 18:22:36 +01:00
Greg Kroah-Hartman
5905c14687 This is the 4.19.168 stable release
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Merge 4.19.168 into android-4.19-stable

Changes in 4.19.168
	net: cdc_ncm: correct overhead in delayed_ndp_size
	net: hns3: fix the number of queues actually used by ARQ
	net: stmmac: dwmac-sun8i: Balance internal PHY resource references
	net: stmmac: dwmac-sun8i: Balance internal PHY power
	net: vlan: avoid leaks on register_vlan_dev() failures
	net/sonic: Fix some resource leaks in error handling paths
	net: ip: always refragment ip defragmented packets
	net: fix pmtu check in nopmtudisc mode
	net: ipv6: fib: flush exceptions when purging route
	chtls: Fix hardware tid leak
	chtls: Remove invalid set_tcb call
	chtls: Fix panic when route to peer not configured
	chtls: Replace skb_dequeue with skb_peek
	chtls: Added a check to avoid NULL pointer dereference
	chtls: Fix chtls resources release sequence
	x86/resctrl: Use an IPI instead of task_work_add() to update PQR_ASSOC MSR
	x86/resctrl: Don't move a task to the same resource group
	vmlinux.lds.h: Add PGO and AutoFDO input sections
	drm/i915: Fix mismatch between misplaced vma check and vma insert
	spi: pxa2xx: Fix use-after-free on unbind
	iio: imu: st_lsm6dsx: flip irq return logic
	iio: imu: st_lsm6dsx: fix edge-trigger interrupts
	HID: wacom: Fix memory leakage caused by kfifo_alloc
	ARM: OMAP2+: omap_device: fix idling of devices during probe
	i2c: sprd: use a specific timeout to avoid system hang up issue
	cpufreq: powernow-k8: pass policy rather than use cpufreq_cpu_get()
	spi: stm32: FIFO threshold level - fix align packet size
	dmaengine: mediatek: mtk-hsdma: Fix a resource leak in the error handling path of the probe function
	dmaengine: xilinx_dma: check dma_async_device_register return value
	dmaengine: xilinx_dma: fix incompatible param warning in _child_probe()
	dmaengine: xilinx_dma: fix mixed_enum_type coverity warning
	wil6210: select CONFIG_CRC32
	block: rsxx: select CONFIG_CRC32
	lightnvm: select CONFIG_CRC32
	iommu/intel: Fix memleak in intel_irq_remapping_alloc
	net/mlx5e: Fix memleak in mlx5e_create_l2_table_groups
	net/mlx5e: Fix two double free cases
	regmap: debugfs: Fix a memory leak when calling regmap_attach_dev
	wan: ds26522: select CONFIG_BITREVERSE
	KVM: arm64: Don't access PMCR_EL0 when no PMU is available
	block: fix use-after-free in disk_part_iter_next
	net: drop bogus skb with CHECKSUM_PARTIAL and offset beyond end of trimmed packet
	regmap: debugfs: Fix a reversed if statement in regmap_debugfs_init()
	Linux 4.19.168

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ia39a78431db8bf624b3d0c0940be36c514b79a77
2021-01-17 15:40:58 +01:00
Ming Lei
3d13ebbd06 block: fix use-after-free in disk_part_iter_next
commit aebf5db917055b38f4945ed6d621d9f07a44ff30 upstream.

Make sure that bdgrab() is done on the 'block_device' instance before
referring to it for avoiding use-after-free.

Cc: <stable@vger.kernel.org>
Reported-by: syzbot+825f0f9657d4e528046e@syzkaller.appspotmail.com
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-01-17 14:04:23 +01:00
Greg Kroah-Hartman
07ce88e9de This is the 4.19.164 stable release
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Merge 4.19.164 into android-4.19-stable

Changes in 4.19.164
	Kbuild: do not emit debug info for assembly with LLVM_IAS=1
	x86/lib: Change .weak to SYM_FUNC_START_WEAK for arch/x86/lib/mem*_64.S
	spi: bcm2835aux: Fix use-after-free on unbind
	spi: bcm2835aux: Restore err assignment in bcm2835aux_spi_probe
	iwlwifi: pcie: limit memory read spin time
	arm64: dts: rockchip: Assign a fixed index to mmc devices on rk3399 boards.
	iwlwifi: mvm: fix kernel panic in case of assert during CSA
	powerpc: Drop -me200 addition to build flags
	ARC: stack unwinding: don't assume non-current task is sleeping
	scsi: ufs: Make sure clk scaling happens only when HBA is runtime ACTIVE
	irqchip/gic-v3-its: Unconditionally save/restore the ITS state on suspend
	soc: fsl: dpio: Get the cpumask through cpumask_of(cpu)
	platform/x86: thinkpad_acpi: Do not report SW_TABLET_MODE on Yoga 11e
	platform/x86: thinkpad_acpi: Add BAT1 is primary battery quirk for Thinkpad Yoga 11e 4th gen
	platform/x86: acer-wmi: add automatic keyboard background light toggle key as KEY_LIGHTS_TOGGLE
	platform/x86: intel-vbtn: Support for tablet mode on HP Pavilion 13 x360 PC
	Input: cm109 - do not stomp on control URB
	Input: i8042 - add Acer laptops to the i8042 reset list
	pinctrl: amd: remove debounce filter setting in IRQ type setting
	mmc: block: Fixup condition for CMD13 polling for RPMB requests
	kbuild: avoid static_assert for genksyms
	scsi: be2iscsi: Revert "Fix a theoretical leak in beiscsi_create_eqs()"
	x86/mm/mem_encrypt: Fix definition of PMD_FLAGS_DEC_WP
	x86/membarrier: Get rid of a dubious optimization
	x86/apic/vector: Fix ordering in vector assignment
	compiler.h: fix barrier_data() on clang
	PCI: qcom: Add missing reset for ipq806x
	mac80211: mesh: fix mesh_pathtbl_init() error path
	net: stmmac: free tx skb buffer in stmmac_resume()
	tcp: select sane initial rcvq_space.space for big MSS
	tcp: fix cwnd-limited bug for TSO deferral where we send nothing
	net/mlx4_en: Avoid scheduling restart task if it is already running
	lan743x: fix for potential NULL pointer dereference with bare card
	net/mlx4_en: Handle TX error CQE
	net: stmmac: delete the eee_ctrl_timer after napi disabled
	net: stmmac: dwmac-meson8b: fix mask definition of the m250_sel mux
	net: bridge: vlan: fix error return code in __vlan_add()
	ktest.pl: If size of log is too big to email, email error message
	USB: dummy-hcd: Fix uninitialized array use in init()
	USB: add RESET_RESUME quirk for Snapscan 1212
	ALSA: usb-audio: Fix potential out-of-bounds shift
	ALSA: usb-audio: Fix control 'access overflow' errors from chmap
	xhci: Give USB2 ports time to enter U3 in bus suspend
	USB: UAS: introduce a quirk to set no_write_same
	USB: sisusbvga: Make console support depend on BROKEN
	ALSA: pcm: oss: Fix potential out-of-bounds shift
	serial: 8250_omap: Avoid FIFO corruption caused by MDR1 access
	drm/xen-front: Fix misused IS_ERR_OR_NULL checks
	drm: fix drm_dp_mst_port refcount leaks in drm_dp_mst_allocate_vcpi
	arm64: lse: fix LSE atomics with LLVM's integrated assembler
	arm64: lse: Fix LSE atomics with LLVM
	arm64: Change .weak to SYM_FUNC_START_WEAK_PI for arch/arm64/lib/mem*.S
	x86/resctrl: Remove unused struct mbm_state::chunks_bw
	x86/resctrl: Fix incorrect local bandwidth when mba_sc is enabled
	pinctrl: merrifield: Set default bias in case no particular value given
	pinctrl: baytrail: Avoid clearing debounce value when turning it off
	ARM: dts: sun8i: v3s: fix GIC node memory range
	gpio: mvebu: fix potential user-after-free on probe
	scsi: bnx2i: Requires MMU
	xsk: Fix xsk_poll()'s return type
	can: softing: softing_netdev_open(): fix error handling
	clk: renesas: r9a06g032: Drop __packed for portability
	block: factor out requeue handling from dispatch code
	netfilter: x_tables: Switch synchronization to RCU
	gpio: eic-sprd: break loop when getting NULL device resource
	selftests/bpf/test_offload.py: Reset ethtool features after failed setting
	RDMA/cm: Fix an attempt to use non-valid pointer when cleaning timewait
	ixgbe: avoid premature Rx buffer reuse
	drm/tegra: replace idr_init() by idr_init_base()
	kernel/cpu: add arch override for clear_tasks_mm_cpumask() mm handling
	drm/tegra: sor: Disable clocks on error in tegra_sor_init()
	arm64: syscall: exit userspace before unmasking exceptions
	vxlan: Add needed_headroom for lower device
	vxlan: Copy needed_tailroom from lowerdev
	scsi: mpt3sas: Increase IOCInit request timeout to 30s
	dm table: Remove BUG_ON(in_interrupt())
	soc/tegra: fuse: Fix index bug in get_process_id
	USB: serial: option: add interface-number sanity check to flag handling
	USB: gadget: f_acm: add support for SuperSpeed Plus
	USB: gadget: f_midi: setup SuperSpeed Plus descriptors
	usb: gadget: f_fs: Re-use SS descriptors for SuperSpeedPlus
	USB: gadget: f_rndis: fix bitrate for SuperSpeed and above
	usb: chipidea: ci_hdrc_imx: Pass DISABLE_DEVICE_STREAMING flag to imx6ul
	ARM: dts: exynos: fix roles of USB 3.0 ports on Odroid XU
	ARM: dts: exynos: fix USB 3.0 VBUS control and over-current pins on Exynos5410
	ARM: dts: exynos: fix USB 3.0 pins supply being turned off on Odroid XU
	coresight: tmc-etr: Check if page is valid before dma_map_page()
	scsi: megaraid_sas: Check user-provided offsets
	HID: i2c-hid: add Vero K147 to descriptor override
	serial_core: Check for port state when tty is in error state
	Bluetooth: Fix slab-out-of-bounds read in hci_le_direct_adv_report_evt()
	quota: Sanity-check quota file headers on load
	media: msi2500: assign SPI bus number dynamically
	crypto: af_alg - avoid undefined behavior accessing salg_name
	md: fix a warning caused by a race between concurrent md_ioctl()s
	perf cs-etm: Change tuple from traceID-CPU# to traceID-metadata
	perf cs-etm: Move definition of 'traceid_list' global variable from header file
	drm/gma500: fix double free of gma_connector
	drm/tve200: Fix handling of platform_get_irq() error
	soc: renesas: rmobile-sysc: Fix some leaks in rmobile_init_pm_domains()
	soc: mediatek: Check if power domains can be powered on at boot time
	soc: qcom: geni: More properly switch to DMA mode
	RDMA/bnxt_re: Set queue pair state when being queried
	selinux: fix error initialization in inode_doinit_with_dentry()
	ARM: dts: aspeed: s2600wf: Fix VGA memory region location
	RDMA/rxe: Compute PSN windows correctly
	x86/mm/ident_map: Check for errors from ident_pud_init()
	ARM: p2v: fix handling of LPAE translation in BE mode
	x86/apic: Fix x2apic enablement without interrupt remapping
	sched/deadline: Fix sched_dl_global_validate()
	sched: Reenable interrupts in do_sched_yield()
	crypto: talitos - Endianess in current_desc_hdr()
	crypto: talitos - Fix return type of current_desc_hdr()
	crypto: inside-secure - Fix sizeof() mismatch
	powerpc/64: Set up a kernel stack for secondaries before cpu_restore()
	spi: img-spfi: fix reference leak in img_spfi_resume
	drm/msm/dsi_pll_10nm: restore VCO rate during restore_state
	ASoC: pcm: DRAIN support reactivation
	selinux: fix inode_doinit_with_dentry() LABEL_INVALID error handling
	arm64: dts: exynos: Include common syscon restart/poweroff for Exynos7
	arm64: dts: exynos: Correct psci compatible used on Exynos7
	Bluetooth: Fix null pointer dereference in hci_event_packet()
	Bluetooth: hci_h5: fix memory leak in h5_close
	spi: spi-ti-qspi: fix reference leak in ti_qspi_setup
	spi: tegra20-slink: fix reference leak in slink ops of tegra20
	spi: tegra20-sflash: fix reference leak in tegra_sflash_resume
	spi: tegra114: fix reference leak in tegra spi ops
	spi: bcm63xx-hsspi: fix missing clk_disable_unprepare() on error in bcm63xx_hsspi_resume
	mwifiex: fix mwifiex_shutdown_sw() causing sw reset failure
	ASoC: wm8998: Fix PM disable depth imbalance on error
	ASoC: arizona: Fix a wrong free in wm8997_probe
	RDMa/mthca: Work around -Wenum-conversion warning
	MIPS: BCM47XX: fix kconfig dependency bug for BCM47XX_BCMA
	crypto: qat - fix status check in qat_hal_put_rel_rd_xfer()
	staging: greybus: codecs: Fix reference counter leak in error handling
	staging: gasket: interrupt: fix the missed eventfd_ctx_put() in gasket_interrupt.c
	media: tm6000: Fix sizeof() mismatches
	media: mtk-vcodec: add missing put_device() call in mtk_vcodec_release_dec_pm()
	ASoC: meson: fix COMPILE_TEST error
	scsi: core: Fix VPD LUN ID designator priorities
	media: solo6x10: fix missing snd_card_free in error handling case
	video: fbdev: atmel_lcdfb: fix return error code in atmel_lcdfb_of_init()
	drm/omap: dmm_tiler: fix return error code in omap_dmm_probe()
	Input: ads7846 - fix race that causes missing releases
	Input: ads7846 - fix integer overflow on Rt calculation
	Input: ads7846 - fix unaligned access on 7845
	usb/max3421: fix return error code in max3421_probe()
	spi: mxs: fix reference leak in mxs_spi_probe
	powerpc/feature: Fix CPU_FTRS_ALWAYS by removing CPU_FTRS_GENERIC_32
	crypto: crypto4xx - Replace bitwise OR with logical OR in crypto4xx_build_pd
	crypto: omap-aes - Fix PM disable depth imbalance in omap_aes_probe
	spi: fix resource leak for drivers without .remove callback
	soc: ti: knav_qmss: fix reference leak in knav_queue_probe
	soc: ti: Fix reference imbalance in knav_dma_probe
	drivers: soc: ti: knav_qmss_queue: Fix error return code in knav_queue_probe
	Input: omap4-keypad - fix runtime PM error handling
	RDMA/cxgb4: Validate the number of CQEs
	memstick: fix a double-free bug in memstick_check
	ARM: dts: at91: sama5d4_xplained: add pincontrol for USB Host
	ARM: dts: at91: sama5d3_xplained: add pincontrol for USB Host
	orinoco: Move context allocation after processing the skb
	cw1200: fix missing destroy_workqueue() on error in cw1200_init_common
	dmaengine: mv_xor_v2: Fix error return code in mv_xor_v2_probe()
	media: siano: fix memory leak of debugfs members in smsdvb_hotplug
	platform/x86: mlx-platform: Remove PSU EEPROM from default platform configuration
	platform/x86: mlx-platform: Remove PSU EEPROM from MSN274x platform configuration
	samples: bpf: Fix lwt_len_hist reusing previous BPF map
	mips: cdmm: fix use-after-free in mips_cdmm_bus_discover
	media: max2175: fix max2175_set_csm_mode() error code
	slimbus: qcom-ngd-ctrl: Avoid sending power requests without QMI
	HSI: omap_ssi: Don't jump to free ID in ssi_add_controller()
	ARM: dts: Remove non-existent i2c1 from 98dx3236
	arm64: dts: rockchip: Set dr_mode to "host" for OTG on rk3328-roc-cc
	power: supply: axp288_charger: Fix HP Pavilion x2 10 DMI matching
	power: supply: bq24190_charger: fix reference leak
	genirq/irqdomain: Don't try to free an interrupt that has no mapping
	PCI: Bounds-check command-line resource alignment requests
	PCI: Fix overflow in command-line resource alignment requests
	PCI: iproc: Fix out-of-bound array accesses
	arm64: dts: meson: fix spi-max-frequency on Khadas VIM2
	ARM: dts: at91: at91sam9rl: fix ADC triggers
	platform/x86: dell-smbios-base: Fix error return code in dell_smbios_init
	ath10k: Fix the parsing error in service available event
	ath10k: Fix an error handling path
	ath10k: Release some resources in an error handling path
	NFSv4.2: condition READDIR's mask for security label based on LSM state
	SUNRPC: xprt_load_transport() needs to support the netid "rdma6"
	lockd: don't use interval-based rebinding over TCP
	NFS: switch nfsiod to be an UNBOUND workqueue.
	vfio-pci: Use io_remap_pfn_range() for PCI IO memory
	media: saa7146: fix array overflow in vidioc_s_audio()
	clocksource/drivers/cadence_ttc: Fix memory leak in ttc_setup_clockevent()
	ARM: dts: at91: sama5d2: map securam as device
	pinctrl: falcon: add missing put_device() call in pinctrl_falcon_probe()
	arm64: dts: rockchip: Fix UART pull-ups on rk3328
	memstick: r592: Fix error return in r592_probe()
	net/mlx5: Properly convey driver version to firmware
	ASoC: jz4740-i2s: add missed checks for clk_get()
	dm ioctl: fix error return code in target_message
	clocksource/drivers/arm_arch_timer: Correct fault programming of CNTKCTL_EL1.EVNTI
	cpufreq: highbank: Add missing MODULE_DEVICE_TABLE
	cpufreq: mediatek: Add missing MODULE_DEVICE_TABLE
	cpufreq: st: Add missing MODULE_DEVICE_TABLE
	cpufreq: loongson1: Add missing MODULE_ALIAS
	cpufreq: scpi: Add missing MODULE_ALIAS
	scsi: qedi: Fix missing destroy_workqueue() on error in __qedi_probe
	scsi: pm80xx: Fix error return in pm8001_pci_probe()
	seq_buf: Avoid type mismatch for seq_buf_init
	scsi: fnic: Fix error return code in fnic_probe()
	platform/x86: mlx-platform: Fix item counter assignment for MSN2700, MSN24xx systems
	powerpc/pseries/hibernation: drop pseries_suspend_begin() from suspend ops
	powerpc/pseries/hibernation: remove redundant cacheinfo update
	usb: ehci-omap: Fix PM disable depth umbalance in ehci_hcd_omap_probe
	usb: oxu210hp-hcd: Fix memory leak in oxu_create
	speakup: fix uninitialized flush_lock
	nfsd: Fix message level for normal termination
	nfs_common: need lock during iterate through the list
	x86/kprobes: Restore BTF if the single-stepping is cancelled
	bus: fsl-mc: fix error return code in fsl_mc_object_allocate()
	clk: tegra: Fix duplicated SE clock entry
	extcon: max77693: Fix modalias string
	mac80211: don't set set TDLS STA bandwidth wider than possible
	ASoC: wm_adsp: remove "ctl" from list on error in wm_adsp_create_control()
	irqchip/alpine-msi: Fix freeing of interrupts on allocation error path
	watchdog: sirfsoc: Add missing dependency on HAS_IOMEM
	watchdog: sprd: remove watchdog disable from resume fail path
	watchdog: sprd: check busy bit before new loading rather than after that
	watchdog: Fix potential dereferencing of null pointer
	um: Monitor error events in IRQ controller
	um: tty: Fix handling of close in tty lines
	um: chan_xterm: Fix fd leak
	nfc: s3fwrn5: Release the nfc firmware
	powerpc/ps3: use dma_mapping_error()
	checkpatch: fix unescaped left brace
	net: bcmgenet: Fix a resource leak in an error handling path in the probe functin
	net: allwinner: Fix some resources leak in the error handling path of the probe and in the remove function
	net: korina: fix return value
	libnvdimm/label: Return -ENXIO for no slot in __blk_label_update
	watchdog: qcom: Avoid context switch in restart handler
	watchdog: coh901327: add COMMON_CLK dependency
	clk: ti: Fix memleak in ti_fapll_synth_setup
	pwm: zx: Add missing cleanup in error path
	pwm: lp3943: Dynamically allocate PWM chip base
	perf record: Fix memory leak when using '--user-regs=?' to list registers
	qlcnic: Fix error code in probe
	clk: s2mps11: Fix a resource leak in error handling paths in the probe function
	clk: sunxi-ng: Make sure divider tables have sentinel
	kconfig: fix return value of do_error_if()
	ARM: sunxi: Add machine match for the Allwinner V3 SoC
	cfg80211: initialize rekey_data
	fix namespaced fscaps when !CONFIG_SECURITY
	lwt: Disable BH too in run_lwt_bpf()
	Input: cros_ec_keyb - send 'scancodes' in addition to key events
	Input: goodix - add upside-down quirk for Teclast X98 Pro tablet
	media: gspca: Fix memory leak in probe
	media: sunxi-cir: ensure IR is handled when it is continuous
	media: netup_unidvb: Don't leak SPI master in probe error path
	media: ipu3-cio2: Remove traces of returned buffers
	media: ipu3-cio2: Return actual subdev format
	media: ipu3-cio2: Serialise access to pad format
	media: ipu3-cio2: Validate mbus format in setting subdev format
	media: ipu3-cio2: Make the field on subdev format V4L2_FIELD_NONE
	Input: cyapa_gen6 - fix out-of-bounds stack access
	ALSA: hda/ca0132 - Change Input Source enum strings.
	PM: ACPI: PCI: Drop acpi_pm_set_bridge_wakeup()
	Revert "ACPI / resources: Use AE_CTRL_TERMINATE to terminate resources walks"
	ACPI: PNP: compare the string length in the matching_id()
	ALSA: hda: Fix regressions on clear and reconfig sysfs
	ALSA: hda/realtek - Enable headset mic of ASUS X430UN with ALC256
	ALSA: hda/realtek - Enable headset mic of ASUS Q524UQK with ALC255
	ALSA: pcm: oss: Fix a few more UBSAN fixes
	ALSA: hda/realtek: Add quirk for MSI-GP73
	ALSA: hda/realtek: Apply jack fixup for Quanta NL3
	ALSA: usb-audio: Add VID to support native DSD reproduction on FiiO devices
	ALSA: usb-audio: Disable sample read check if firmware doesn't give back
	s390/smp: perform initial CPU reset also for SMT siblings
	s390/kexec_file: fix diag308 subcode when loading crash kernel
	s390/dasd: fix hanging device offline processing
	s390/dasd: prevent inconsistent LCU device data
	s390/dasd: fix list corruption of pavgroup group list
	s390/dasd: fix list corruption of lcu list
	staging: comedi: mf6x4: Fix AI end-of-conversion detection
	powerpc/perf: Exclude kernel samples while counting events in user space.
	crypto: ecdh - avoid unaligned accesses in ecdh_set_secret()
	EDAC/amd64: Fix PCI component registration
	USB: serial: mos7720: fix parallel-port state restore
	USB: serial: digi_acceleport: fix write-wakeup deadlocks
	USB: serial: keyspan_pda: fix dropped unthrottle interrupts
	USB: serial: keyspan_pda: fix write deadlock
	USB: serial: keyspan_pda: fix stalled writes
	USB: serial: keyspan_pda: fix write-wakeup use-after-free
	USB: serial: keyspan_pda: fix tx-unthrottle use-after-free
	USB: serial: keyspan_pda: fix write unthrottling
	ext4: fix a memory leak of ext4_free_data
	ext4: fix deadlock with fs freezing and EA inodes
	KVM: arm64: Introduce handling of AArch32 TTBCR2 traps
	ARM: dts: pandaboard: fix pinmux for gpio user button of Pandaboard ES
	ARM: dts: at91: sama5d2: fix CAN message ram offset and size
	powerpc: Fix incorrect stw{, ux, u, x} instructions in __set_pte_at
	powerpc/rtas: Fix typo of ibm,open-errinjct in RTAS filter
	powerpc/xmon: Change printk() to pr_cont()
	powerpc/powernv/memtrace: Don't leak kernel memory to user space
	powerpc/powernv/memtrace: Fix crashing the kernel when enabling concurrently
	ima: Don't modify file descriptor mode on the fly
	ceph: fix race in concurrent __ceph_remove_cap invocations
	SMB3: avoid confusing warning message on mount to Azure
	SMB3.1.1: do not log warning message if server doesn't populate salt
	ubifs: wbuf: Don't leak kernel memory to flash
	jffs2: Fix GC exit abnormally
	jfs: Fix array index bounds check in dbAdjTree
	drm/dp_aux_dev: check aux_dev before use in drm_dp_aux_dev_get_by_minor()
	spi: spi-sh: Fix use-after-free on unbind
	spi: davinci: Fix use-after-free on unbind
	spi: pic32: Don't leak DMA channels in probe error path
	spi: rb4xx: Don't leak SPI master in probe error path
	spi: sc18is602: Don't leak SPI master in probe error path
	spi: st-ssc4: Fix unbalanced pm_runtime_disable() in probe error path
	spi: mt7621: fix missing clk_disable_unprepare() on error in mt7621_spi_probe
	soc: qcom: smp2p: Safely acquire spinlock without IRQs
	mtd: spinand: Fix OOB read
	mtd: parser: cmdline: Fix parsing of part-names with colons
	mtd: rawnand: qcom: Fix DMA sync on FLASH_STATUS register read
	scsi: lpfc: Fix invalid sleeping context in lpfc_sli4_nvmet_alloc()
	scsi: lpfc: Re-fix use after free in lpfc_rq_buf_free()
	iio: buffer: Fix demux update
	iio: adc: rockchip_saradc: fix missing clk_disable_unprepare() on error in rockchip_saradc_resume
	iio:light:rpr0521: Fix timestamp alignment and prevent data leak.
	iio:light:st_uvis25: Fix timestamp alignment and prevent data leak.
	iio:pressure:mpl3115: Force alignment of buffer
	iio:imu:bmi160: Fix too large a buffer.
	md/cluster: block reshape with remote resync job
	md/cluster: fix deadlock when node is doing resync job
	pinctrl: sunxi: Always call chained_irq_{enter, exit} in sunxi_pinctrl_irq_handler
	clk: mvebu: a3700: fix the XTAL MODE pin to MPP1_9
	xen-blkback: set ring->xenblkd to NULL after kthread_stop()
	xen/xenbus: Allow watches discard events before queueing
	xen/xenbus: Add 'will_handle' callback support in xenbus_watch_path()
	xen/xenbus/xen_bus_type: Support will_handle watch callback
	xen/xenbus: Count pending messages for each watch
	xenbus/xenbus_backend: Disallow pending watch messages
	libnvdimm/namespace: Fix reaping of invalidated block-window-namespace labels
	platform/x86: intel-vbtn: Allow switch events on Acer Switch Alpha 12
	PCI: Fix pci_slot_release() NULL pointer dereference
	platform/x86: mlx-platform: remove an unused variable
	Linux 4.19.164

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I8e2d24b45393ee2360186893d4e578e20156c7f1
2020-12-30 12:19:31 +01:00
Johannes Thumshirn
7894076fbc block: factor out requeue handling from dispatch code
[ Upstream commit c92a41031a6d57395889b5c87cea359220a24d2a ]

Factor out the requeue handling from the dispatch code, this will make
subsequent addition of different requeueing schemes easier.

Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-12-30 11:25:45 +01:00
Greg Kroah-Hartman
bc09bee25e This is the 4.19.156 stable release
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Merge 4.19.156 into android-4.19-stable

Changes in 4.19.156
	drm/i915: Break up error capture compression loops with cond_resched()
	tipc: fix use-after-free in tipc_bcast_get_mode
	ptrace: fix task_join_group_stop() for the case when current is traced
	cadence: force nonlinear buffers to be cloned
	chelsio/chtls: fix memory leaks caused by a race
	chelsio/chtls: fix always leaking ctrl_skb
	gianfar: Replace skb_realloc_headroom with skb_cow_head for PTP
	gianfar: Account for Tx PTP timestamp in the skb headroom
	net: usb: qmi_wwan: add Telit LE910Cx 0x1230 composition
	sctp: Fix COMM_LOST/CANT_STR_ASSOC err reporting on big-endian platforms
	sfp: Fix error handing in sfp_probe()
	blktrace: fix debugfs use after free
	btrfs: extent_io: Kill the forward declaration of flush_write_bio
	btrfs: extent_io: Move the BUG_ON() in flush_write_bio() one level up
	Revert "btrfs: flush write bio if we loop in extent_write_cache_pages"
	btrfs: flush write bio if we loop in extent_write_cache_pages
	btrfs: extent_io: Handle errors better in extent_write_full_page()
	btrfs: extent_io: Handle errors better in btree_write_cache_pages()
	btrfs: extent_io: add proper error handling to lock_extent_buffer_for_io()
	Btrfs: fix unwritten extent buffers and hangs on future writeback attempts
	btrfs: Don't submit any btree write bio if the fs has errors
	btrfs: Move btrfs_check_chunk_valid() to tree-check.[ch] and export it
	btrfs: tree-checker: Make chunk item checker messages more readable
	btrfs: tree-checker: Make btrfs_check_chunk_valid() return EUCLEAN instead of EIO
	btrfs: tree-checker: Check chunk item at tree block read time
	btrfs: tree-checker: Verify dev item
	btrfs: tree-checker: Fix wrong check on max devid
	btrfs: tree-checker: Enhance chunk checker to validate chunk profile
	btrfs: tree-checker: Verify inode item
	btrfs: tree-checker: fix the error message for transid error
	Fonts: Replace discarded const qualifier
	ALSA: usb-audio: Add implicit feedback quirk for Zoom UAC-2
	ALSA: usb-audio: add usb vendor id as DSD-capable for Khadas devices
	ALSA: usb-audio: Add implicit feedback quirk for Qu-16
	ALSA: usb-audio: Add implicit feedback quirk for MODX
	mm: mempolicy: fix potential pte_unmap_unlock pte error
	lib/crc32test: remove extra local_irq_disable/enable
	kthread_worker: prevent queuing delayed work from timer_fn when it is being canceled
	mm: always have io_remap_pfn_range() set pgprot_decrypted()
	gfs2: Wake up when sd_glock_disposal becomes zero
	ring-buffer: Fix recursion protection transitions between interrupt context
	ftrace: Fix recursion check for NMI test
	ftrace: Handle tracing when switching between context
	tracing: Fix out of bounds write in get_trace_buf
	futex: Handle transient "ownerless" rtmutex state correctly
	ARM: dts: sun4i-a10: fix cpu_alert temperature
	x86/kexec: Use up-to-dated screen_info copy to fill boot params
	of: Fix reserved-memory overlap detection
	blk-cgroup: Fix memleak on error path
	blk-cgroup: Pre-allocate tree node on blkg_conf_prep
	scsi: core: Don't start concurrent async scan on same host
	vsock: use ns_capable_noaudit() on socket create
	drm/vc4: drv: Add error handding for bind
	ACPI: NFIT: Fix comparison to '-ENXIO'
	vt: Disable KD_FONT_OP_COPY
	fork: fix copy_process(CLONE_PARENT) race with the exiting ->real_parent
	serial: 8250_mtk: Fix uart_get_baud_rate warning
	serial: txx9: add missing platform_driver_unregister() on error in serial_txx9_init
	USB: serial: cyberjack: fix write-URB completion race
	USB: serial: option: add Quectel EC200T module support
	USB: serial: option: add LE910Cx compositions 0x1203, 0x1230, 0x1231
	USB: serial: option: add Telit FN980 composition 0x1055
	USB: Add NO_LPM quirk for Kingston flash drive
	usb: mtu3: fix panic in mtu3_gadget_stop()
	ARC: stack unwinding: avoid indefinite looping
	Revert "ARC: entry: fix potential EFA clobber when TIF_SYSCALL_TRACE"
	PM: runtime: Resume the device earlier in __device_release_driver()
	perf/core: Fix a memory leak in perf_event_parse_addr_filter()
	tools: perf: Fix build error in v4.19.y
	net: dsa: read mac address from DT for slave device
	arm64: dts: marvell: espressobin: Add ethernet switch aliases
	Linux 4.19.156

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I87af8871465f54de0332fa74bc1f342b7fe99061
2020-11-10 13:23:09 +01:00
Gabriel Krisman Bertazi
239aed5d2e blk-cgroup: Pre-allocate tree node on blkg_conf_prep
[ Upstream commit f255c19b3ab46d3cad3b1b2e1036f4c926cb1d0c ]

Similarly to commit 457e490f2b ("blkcg: allocate struct blkcg_gq
outside request queue spinlock"), blkg_create can also trigger
occasional -ENOMEM failures at the radix insertion because any
allocation inside blkg_create has to be non-blocking, making it more
likely to fail.  This causes trouble for userspace tools trying to
configure io weights who need to deal with this condition.

This patch reduces the occurrence of -ENOMEMs on this path by preloading
the radix tree element on a GFP_KERNEL context, such that we guarantee
the later non-blocking insertion won't fail.

A similar solution exists in blkcg_init_queue for the same situation.

Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-10 12:35:59 +01:00
Gabriel Krisman Bertazi
6dba51828d blk-cgroup: Fix memleak on error path
[ Upstream commit 52abfcbd57eefdd54737fc8c2dc79d8f46d4a3e5 ]

If new_blkg allocation raced with blk_policy change and
blkg_lookup_check fails, new_blkg is leaked.

Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-11-10 12:35:59 +01:00
Greg Kroah-Hartman
d1253c75a8 This is the 4.19.155 stable release
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Merge 4.19.155 into android-4.19-stable

Changes in 4.19.155
	objtool: Support Clang non-section symbols in ORC generation
	scripts/setlocalversion: make git describe output more reliable
	arm64: Run ARCH_WORKAROUND_1 enabling code on all CPUs
	arm64: link with -z norelro regardless of CONFIG_RELOCATABLE
	x86/PCI: Fix intel_mid_pci.c build error when ACPI is not enabled
	efivarfs: Replace invalid slashes with exclamation marks in dentries.
	chelsio/chtls: fix deadlock issue
	chelsio/chtls: fix memory leaks in CPL handlers
	chelsio/chtls: fix tls record info to user
	gtp: fix an use-before-init in gtp_newlink()
	mlxsw: core: Fix memory leak on module removal
	netem: fix zero division in tabledist
	ravb: Fix bit fields checking in ravb_hwtstamp_get()
	tcp: Prevent low rmem stalls with SO_RCVLOWAT.
	tipc: fix memory leak caused by tipc_buf_append()
	r8169: fix issue with forced threading in combination with shared interrupts
	cxgb4: set up filter action after rewrites
	arch/x86/amd/ibs: Fix re-arming IBS Fetch
	x86/xen: disable Firmware First mode for correctable memory errors
	fuse: fix page dereference after free
	bpf: Fix comment for helper bpf_current_task_under_cgroup()
	evm: Check size of security.evm before using it
	p54: avoid accessing the data mapped to streaming DMA
	cxl: Rework error message for incompatible slots
	RDMA/addr: Fix race with netevent_callback()/rdma_addr_cancel()
	mtd: lpddr: Fix bad logic in print_drs_error
	serial: pl011: Fix lockdep splat when handling magic-sysrq interrupt
	ata: sata_rcar: Fix DMA boundary mask
	fscrypt: return -EXDEV for incompatible rename or link into encrypted dir
	fscrypt: clean up and improve dentry revalidation
	fscrypt: fix race allowing rename() and link() of ciphertext dentries
	fs, fscrypt: clear DCACHE_ENCRYPTED_NAME when unaliasing directory
	fscrypt: only set dentry_operations on ciphertext dentries
	fscrypt: fix race where ->lookup() marks plaintext dentry as ciphertext
	Revert "block: ratelimit handle_bad_sector() message"
	xen/events: don't use chip_data for legacy IRQs
	xen/events: avoid removing an event channel while handling it
	xen/events: add a proper barrier to 2-level uevent unmasking
	xen/events: fix race in evtchn_fifo_unmask()
	xen/events: add a new "late EOI" evtchn framework
	xen/blkback: use lateeoi irq binding
	xen/netback: use lateeoi irq binding
	xen/scsiback: use lateeoi irq binding
	xen/pvcallsback: use lateeoi irq binding
	xen/pciback: use lateeoi irq binding
	xen/events: switch user event channels to lateeoi model
	xen/events: use a common cpu hotplug hook for event channels
	xen/events: defer eoi in case of excessive number of events
	xen/events: block rogue events for some time
	x86/unwind/orc: Fix inactive tasks with stack pointer in %sp on GCC 10 compiled kernels
	mlxsw: core: Fix use-after-free in mlxsw_emad_trans_finish()
	RDMA/qedr: Fix memory leak in iWARP CM
	ata: sata_nv: Fix retrieving of active qcs
	futex: Fix incorrect should_fail_futex() handling
	powerpc/powernv/smp: Fix spurious DBG() warning
	mm: fix exec activate_mm vs TLB shootdown and lazy tlb switching race
	powerpc: select ARCH_WANT_IRQS_OFF_ACTIVATE_MM
	sparc64: remove mm_cpumask clearing to fix kthread_use_mm race
	f2fs: add trace exit in exception path
	f2fs: fix uninit-value in f2fs_lookup
	f2fs: fix to check segment boundary during SIT page readahead
	um: change sigio_spinlock to a mutex
	ARM: 8997/2: hw_breakpoint: Handle inexact watchpoint addresses
	power: supply: bq27xxx: report "not charging" on all types
	xfs: fix realtime bitmap/summary file truncation when growing rt volume
	video: fbdev: pvr2fb: initialize variables
	ath10k: start recovery process when payload length exceeds max htc length for sdio
	ath10k: fix VHT NSS calculation when STBC is enabled
	drm/brige/megachips: Add checking if ge_b850v3_lvds_init() is working correctly
	media: videodev2.h: RGB BT2020 and HSV are always full range
	media: platform: Improve queue set up flow for bug fixing
	usb: typec: tcpm: During PR_SWAP, source caps should be sent only after tSwapSourceStart
	media: tw5864: check status of tw5864_frameinterval_get
	media: imx274: fix frame interval handling
	mmc: via-sdmmc: Fix data race bug
	drm/bridge/synopsys: dsi: add support for non-continuous HS clock
	arm64: topology: Stop using MPIDR for topology information
	printk: reduce LOG_BUF_SHIFT range for H8300
	ia64: kprobes: Use generic kretprobe trampoline handler
	kgdb: Make "kgdbcon" work properly with "kgdb_earlycon"
	media: uvcvideo: Fix dereference of out-of-bound list iterator
	riscv: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO
	cpufreq: sti-cpufreq: add stih418 support
	USB: adutux: fix debugging
	uio: free uio id after uio file node is freed
	usb: xhci: omit duplicate actions when suspending a runtime suspended host.
	arm64/mm: return cpu_all_mask when node is NUMA_NO_NODE
	xfs: don't free rt blocks when we're doing a REMAP bunmapi call
	ACPI: Add out of bounds and numa_off protections to pxm_to_node()
	drivers/net/wan/hdlc_fr: Correctly handle special skb->protocol values
	bus/fsl_mc: Do not rely on caller to provide non NULL mc_io
	power: supply: test_power: add missing newlines when printing parameters by sysfs
	drm/amd/display: HDMI remote sink need mode validation for Linux
	btrfs: fix replace of seed device
	md/bitmap: md_bitmap_get_counter returns wrong blocks
	bnxt_en: Log unknown link speed appropriately.
	rpmsg: glink: Use complete_all for open states
	clk: ti: clockdomain: fix static checker warning
	net: 9p: initialize sun_server.sun_path to have addr's value only when addr is valid
	drivers: watchdog: rdc321x_wdt: Fix race condition bugs
	ext4: Detect already used quota file early
	gfs2: add validation checks for size of superblock
	cifs: handle -EINTR in cifs_setattr
	arm64: dts: renesas: ulcb: add full-pwr-cycle-in-suspend into eMMC nodes
	ARM: dts: omap4: Fix sgx clock rate for 4430
	memory: emif: Remove bogus debugfs error handling
	ARM: dts: s5pv210: remove DMA controller bus node name to fix dtschema warnings
	ARM: dts: s5pv210: move PMU node out of clock controller
	ARM: dts: s5pv210: remove dedicated 'audio-subsystem' node
	nbd: make the config put is called before the notifying the waiter
	sgl_alloc_order: fix memory leak
	nvme-rdma: fix crash when connect rejected
	md/raid5: fix oops during stripe resizing
	mmc: sdhci-acpi: AMDI0040: Set SDHCI_QUIRK2_PRESET_VALUE_BROKEN
	perf/x86/amd/ibs: Don't include randomized bits in get_ibs_op_count()
	perf/x86/amd/ibs: Fix raw sample data accumulation
	leds: bcm6328, bcm6358: use devres LED registering function
	media: uvcvideo: Fix uvc_ctrl_fixup_xu_info() not having any effect
	fs: Don't invalidate page buffers in block_write_full_page()
	NFS: fix nfs_path in case of a rename retry
	ACPI: button: fix handling lid state changes when input device closed
	ACPI / extlog: Check for RDMSR failure
	ACPI: video: use ACPI backlight for HP 635 Notebook
	ACPI: debug: don't allow debugging when ACPI is disabled
	acpi-cpufreq: Honor _PSD table setting on new AMD CPUs
	w1: mxc_w1: Fix timeout resolution problem leading to bus error
	scsi: mptfusion: Fix null pointer dereferences in mptscsih_remove()
	scsi: qla2xxx: Fix crash on session cleanup with unload
	btrfs: qgroup: fix wrong qgroup metadata reserve for delayed inode
	btrfs: improve device scanning messages
	btrfs: reschedule if necessary when logging directory items
	btrfs: send, recompute reference path after orphanization of a directory
	btrfs: use kvzalloc() to allocate clone_roots in btrfs_ioctl_send()
	btrfs: cleanup cow block on error
	btrfs: fix use-after-free on readahead extent after failure to create it
	usb: xhci: Workaround for S3 issue on AMD SNPS 3.0 xHC
	usb: dwc3: ep0: Fix ZLP for OUT ep0 requests
	usb: dwc3: gadget: Check MPS of the request length
	usb: dwc3: core: add phy cleanup for probe error handling
	usb: dwc3: core: don't trigger runtime pm when remove driver
	usb: cdc-acm: fix cooldown mechanism
	usb: typec: tcpm: reset hard_reset_count for any disconnect
	usb: host: fsl-mph-dr-of: check return of dma_set_mask()
	drm/i915: Force VT'd workarounds when running as a guest OS
	vt: keyboard, simplify vt_kdgkbsent
	vt: keyboard, extend func_buf_lock to readers
	HID: wacom: Avoid entering wacom_wac_pen_report for pad / battery
	udf: Fix memory leak when mounting
	dmaengine: dma-jz4780: Fix race in jz4780_dma_tx_status
	iio:light:si1145: Fix timestamp alignment and prevent data leak.
	iio:adc:ti-adc0832 Fix alignment issue with timestamp
	iio:adc:ti-adc12138 Fix alignment issue with timestamp
	iio:gyro:itg3200: Fix timestamp alignment and prevent data leak.
	powerpc/drmem: Make lmb_size 64 bit
	s390/stp: add locking to sysfs functions
	powerpc/rtas: Restrict RTAS requests from userspace
	powerpc: Warn about use of smt_snooze_delay
	powerpc/powernv/elog: Fix race while processing OPAL error log event.
	powerpc: Fix undetected data corruption with P9N DD2.1 VSX CI load emulation
	NFSv4.2: support EXCHGID4_FLAG_SUPP_FENCE_OPS 4.2 EXCHANGE_ID flag
	NFSD: Add missing NFSv2 .pc_func methods
	ubifs: dent: Fix some potential memory leaks while iterating entries
	perf python scripting: Fix printable strings in python3 scripts
	ubi: check kthread_should_stop() after the setting of task state
	ia64: fix build error with !COREDUMP
	i2c: imx: Fix external abort on interrupt in exit paths
	drm/amdgpu: don't map BO in reserved region
	drm/amd/display: Don't invoke kgdb_breakpoint() unconditionally
	ceph: promote to unsigned long long before shifting
	libceph: clear con->out_msg on Policy::stateful_server faults
	9P: Cast to loff_t before multiplying
	ring-buffer: Return 0 on success from ring_buffer_resize()
	vringh: fix __vringh_iov() when riov and wiov are different
	ext4: fix leaking sysfs kobject after failed mount
	ext4: fix error handling code in add_new_gdb
	ext4: fix invalid inode checksum
	drm/ttm: fix eviction valuable range check.
	rtc: rx8010: don't modify the global rtc ops
	tty: make FONTX ioctl use the tty pointer they were actually passed
	arm64: berlin: Select DW_APB_TIMER_OF
	cachefiles: Handle readpage error correctly
	hil/parisc: Disable HIL driver when it gets stuck
	arm: dts: mt7623: add missing pause for switchport
	ARM: samsung: fix PM debug build with DEBUG_LL but !MMU
	ARM: s3c24xx: fix missing system reset
	device property: Keep secondary firmware node secondary by type
	device property: Don't clear secondary pointer for shared primary firmware node
	KVM: arm64: Fix AArch32 handling of DBGD{CCINT,SCRext} and DBGVCR
	staging: comedi: cb_pcidas: Allow 2-channel commands for AO subdevice
	staging: octeon: repair "fixed-link" support
	staging: octeon: Drop on uncorrectable alignment or FCS error
	Linux 4.19.155

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I18fefb5bfaa4d05772c61c2975340d0f089b8e3e
2020-11-05 14:02:27 +01:00
Greg Kroah-Hartman
8dda141d0b Revert "block: ratelimit handle_bad_sector() message"
This reverts commit f86b9bf622 which is
commit f4ac712e4fe009635344b9af5d890fe25fcc8c0d upstream.

Jari Ruusu writes:

	Above change "block: ratelimit handle_bad_sector() message"
	upstream commit f4ac712e4fe009635344b9af5d890fe25fcc8c0d
	in 4.19.154 kernel is not completely OK.

	Removing casts from arguments 4 and 5 produces these compile warnings:

	...

	For 64 bit systems it is only compile time cosmetic warning. For 32 bit
	system + CONFIG_LBDAF=n it introduces bugs: output formats are "%llu" and
	passed parameters are 32 bits. That is not OK.

	Upstream kernels have hardcoded 64 bit sector_t. In older stable trees
	sector_t can be either 64 or 32 bit. In other words, backport of above patch
	needs to keep those original casts.

And Tetsuo Handa writes:
	Indeed, commit f4ac712e4fe00963 ("block: ratelimit handle_bad_sector() message")
	depends on commit 72deb455b5ec619f ("block: remove CONFIG_LBDAF") which was merged
	into 5.2 kernel.

So let's revert it.

Reported-by: Jari Ruusu <jariruusu@users.sourceforge.net>
Reported-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-05 11:08:35 +01:00
Greg Kroah-Hartman
ac43e7e5e4 This is the 4.19.154 stable release
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Merge 4.19.154 into android-4.19-stable

Changes in 4.19.154
	powerpc/tau: Check processor type before enabling TAU interrupt
	powerpc/tau: Disable TAU between measurements
	powerpc/64s/radix: Fix mm_cpumask trimming race vs kthread_use_mm
	RDMA/cma: Remove dead code for kernel rdmacm multicast
	RDMA/cma: Consolidate the destruction of a cma_multicast in one place
	perf intel-pt: Fix "context_switch event has no tid" error
	RDMA/hns: Set the unsupported wr opcode
	RDMA/hns: Fix missing sq_sig_type when querying QP
	kdb: Fix pager search for multi-line strings
	overflow: Include header file with SIZE_MAX declaration
	powerpc/perf: Exclude pmc5/6 from the irrelevant PMU group constraints
	powerpc/perf/hv-gpci: Fix starting index value
	cpufreq: powernv: Fix frame-size-overflow in powernv_cpufreq_reboot_notifier
	IB/rdmavt: Fix sizeof mismatch
	f2fs: wait for sysfs kobject removal before freeing f2fs_sb_info
	lib/crc32.c: fix trivial typo in preprocessor condition
	ramfs: fix nommu mmap with gaps in the page cache
	rapidio: fix error handling path
	rapidio: fix the missed put_device() for rio_mport_add_riodev
	mailbox: avoid timer start from callback
	i2c: rcar: Auto select RESET_CONTROLLER
	PCI: iproc: Set affinity mask on MSI interrupts
	rpmsg: smd: Fix a kobj leak in in qcom_smd_parse_edge()
	pwm: img: Fix null pointer access in probe
	clk: rockchip: Initialize hw to error to avoid undefined behavior
	clk: at91: clk-main: update key before writing AT91_CKGR_MOR
	clk: bcm2835: add missing release if devm_clk_hw_register fails
	watchdog: Fix memleak in watchdog_cdev_register
	watchdog: Use put_device on error
	watchdog: sp5100: Fix definition of EFCH_PM_DECODEEN3
	svcrdma: fix bounce buffers for unaligned offsets and multiple pages
	ext4: limit entries returned when counting fsmap records
	vfio/pci: Clear token on bypass registration failure
	vfio iommu type1: Fix memory leak in vfio_iommu_type1_pin_pages
	SUNRPC: fix copying of multiple pages in gss_read_proxy_verf()
	Input: imx6ul_tsc - clean up some errors in imx6ul_tsc_resume()
	Input: stmfts - fix a & vs && typo
	Input: ep93xx_keypad - fix handling of platform_get_irq() error
	Input: omap4-keypad - fix handling of platform_get_irq() error
	Input: twl4030_keypad - fix handling of platform_get_irq() error
	Input: sun4i-ps2 - fix handling of platform_get_irq() error
	KVM: x86: emulating RDPID failure shall return #UD rather than #GP
	netfilter: conntrack: connection timeout after re-register
	netfilter: nf_fwd_netdev: clear timestamp in forwarding path
	ARM: dts: imx6sl: fix rng node
	ARM: dts: sun8i: r40: bananapi-m2-ultra: Fix dcdc1 regulator
	memory: omap-gpmc: Fix a couple off by ones
	memory: omap-gpmc: Fix build error without CONFIG_OF
	memory: fsl-corenet-cf: Fix handling of platform_get_irq() error
	arm64: dts: qcom: pm8916: Remove invalid reg size from wcd_codec
	arm64: dts: qcom: msm8916: Fix MDP/DSI interrupts
	ARM: dts: owl-s500: Fix incorrect PPI interrupt specifiers
	arm64: dts: zynqmp: Remove additional compatible string for i2c IPs
	powerpc/powernv/dump: Fix race while processing OPAL dump
	nvmet: fix uninitialized work for zero kato
	NTB: hw: amd: fix an issue about leak system resources
	sched/features: Fix !CONFIG_JUMP_LABEL case
	perf: correct SNOOPX field offset
	i2c: core: Restore acpi_walk_dep_device_list() getting called after registering the ACPI i2c devs
	block: ratelimit handle_bad_sector() message
	crypto: ccp - fix error handling
	media: firewire: fix memory leak
	media: ati_remote: sanity check for both endpoints
	media: st-delta: Fix reference count leak in delta_run_work
	media: sti: Fix reference count leaks
	media: exynos4-is: Fix several reference count leaks due to pm_runtime_get_sync
	media: exynos4-is: Fix a reference count leak due to pm_runtime_get_sync
	media: exynos4-is: Fix a reference count leak
	media: vsp1: Fix runtime PM imbalance on error
	media: platform: s3c-camif: Fix runtime PM imbalance on error
	media: platform: sti: hva: Fix runtime PM imbalance on error
	media: bdisp: Fix runtime PM imbalance on error
	media: media/pci: prevent memory leak in bttv_probe
	media: uvcvideo: Ensure all probed info is returned to v4l2
	mmc: sdio: Check for CISTPL_VERS_1 buffer size
	media: saa7134: avoid a shift overflow
	fs: dlm: fix configfs memory leak
	media: venus: core: Fix runtime PM imbalance in venus_probe
	ntfs: add check for mft record size in superblock
	ip_gre: set dev->hard_header_len and dev->needed_headroom properly
	mac80211: handle lack of sband->bitrates in rates
	PM: hibernate: remove the bogus call to get_gendisk() in software_resume()
	scsi: mvumi: Fix error return in mvumi_io_attach()
	scsi: target: core: Add CONTROL field for trace events
	mic: vop: copy data to kernel space then write to io memory
	misc: vop: add round_up(x,4) for vring_size to avoid kernel panic
	usb: gadget: function: printer: fix use-after-free in __lock_acquire
	udf: Limit sparing table size
	udf: Avoid accessing uninitialized data on failed inode read
	USB: cdc-acm: handle broken union descriptors
	usb: dwc3: simple: add support for Hikey 970
	can: flexcan: flexcan_chip_stop(): add error handling and propagate error value
	ath9k: hif_usb: fix race condition between usb_get_urb() and usb_kill_anchored_urbs()
	misc: rtsx: Fix memory leak in rtsx_pci_probe
	reiserfs: only call unlock_new_inode() if I_NEW
	xfs: make sure the rt allocator doesn't run off the end
	usb: ohci: Default to per-port over-current protection
	Bluetooth: Only mark socket zapped after unlocking
	scsi: ibmvfc: Fix error return in ibmvfc_probe()
	brcmsmac: fix memory leak in wlc_phy_attach_lcnphy
	rtl8xxxu: prevent potential memory leak
	Fix use after free in get_capset_info callback.
	scsi: qedi: Protect active command list to avoid list corruption
	scsi: qedi: Fix list_del corruption while removing active I/O
	tty: ipwireless: fix error handling
	ipvs: Fix uninit-value in do_ip_vs_set_ctl()
	reiserfs: Fix memory leak in reiserfs_parse_options()
	mwifiex: don't call del_timer_sync() on uninitialized timer
	brcm80211: fix possible memleak in brcmf_proto_msgbuf_attach
	usb: core: Solve race condition in anchor cleanup functions
	scsi: ufs: ufs-qcom: Fix race conditions caused by ufs_qcom_testbus_config()
	ath10k: check idx validity in __ath10k_htt_rx_ring_fill_n()
	net: korina: cast KSEG0 address to pointer in kfree
	tty: serial: fsl_lpuart: fix lpuart32_poll_get_char
	usb: cdc-acm: add quirk to blacklist ETAS ES58X devices
	USB: cdc-wdm: Make wdm_flush() interruptible and add wdm_fsync().
	eeprom: at25: set minimum read/write access stride to 1
	usb: gadget: f_ncm: allow using NCM in SuperSpeed Plus gadgets.
	Linux 4.19.154

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I242a1afee6c5297423afd0f11e81f9a9f14ded77
2020-10-30 11:43:26 +01:00
Tetsuo Handa
f86b9bf622 block: ratelimit handle_bad_sector() message
[ Upstream commit f4ac712e4fe009635344b9af5d890fe25fcc8c0d ]

syzbot is reporting unkillable task [1], for the caller is failing to
handle a corrupted filesystem image which attempts to access beyond
the end of the device. While we need to fix the caller, flooding the
console with handle_bad_sector() message is unlikely useful.

[1] https://syzkaller.appspot.com/bug?id=f1f49fb971d7a3e01bd8ab8cff2ff4572ccf3092

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-10-30 10:38:26 +01:00
Greg Kroah-Hartman
af4136af6b This is the 4.19.145 stable release
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Merge 4.19.145 into android-4.19-stable

Changes in 4.19.145
	ALSA; firewire-tascam: exclude Tascam FE-8 from detection
	block: ensure bdi->io_pages is always initialized
	netlabel: fix problems with mapping removal
	net: usb: dm9601: Add USB ID of Keenetic Plus DSL
	sctp: not disable bh in the whole sctp_get_port_local()
	tipc: fix shutdown() of connectionless socket
	net: disable netpoll on fresh napis
	net/mlx5e: Don't support phys switch id if not in switchdev mode
	Linux 4.19.145

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I84b193f4c87a87efbba84219856368d3cfba907b
2020-09-12 14:23:25 +02:00
Jens Axboe
732fd460bb block: ensure bdi->io_pages is always initialized
[ Upstream commit de1b0ee490eafdf65fac9eef9925391a8369f2dc ]

If a driver leaves the limit settings as the defaults, then we don't
initialize bdi->io_pages. This means that file systems may need to
work around bdi->io_pages == 0, which is somewhat messy.

Initialize the default value just like we do for ->ra_pages.

Cc: stable@vger.kernel.org
Fixes: 9491ae4aad ("mm: don't cap request size based on read-ahead setting")
Reported-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-09-12 13:40:22 +02:00
Greg Kroah-Hartman
a13ec5ea86 This is the 4.19.143 stable release
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Merge 4.19.143 into android-4.19-stable

Changes in 4.19.143
	powerpc/64s: Don't init FSCR_DSCR in __init_FSCR()
	gre6: Fix reception with IP6_TNL_F_RCV_DSCP_COPY
	net: Fix potential wrong skb->protocol in skb_vlan_untag()
	net: qrtr: fix usage of idr in port assignment to socket
	net/smc: Prevent kernel-infoleak in __smc_diag_dump()
	tipc: fix uninit skb->data in tipc_nl_compat_dumpit()
	net: ena: Make missed_tx stat incremental
	ipvlan: fix device features
	ALSA: pci: delete repeated words in comments
	ASoC: img: Fix a reference count leak in img_i2s_in_set_fmt
	ASoC: img-parallel-out: Fix a reference count leak
	ASoC: tegra: Fix reference count leaks.
	mfd: intel-lpss: Add Intel Emmitsburg PCH PCI IDs
	arm64: dts: qcom: msm8916: Pull down PDM GPIOs during sleep
	powerpc/xive: Ignore kmemleak false positives
	media: pci: ttpci: av7110: fix possible buffer overflow caused by bad DMA value in debiirq()
	blktrace: ensure our debugfs dir exists
	scsi: target: tcmu: Fix crash on ARM during cmd completion
	iommu/iova: Don't BUG on invalid PFNs
	drm/amdkfd: Fix reference count leaks.
	drm/radeon: fix multiple reference count leak
	drm/amdgpu: fix ref count leak in amdgpu_driver_open_kms
	drm/amd/display: fix ref count leak in amdgpu_drm_ioctl
	drm/amdgpu: fix ref count leak in amdgpu_display_crtc_set_config
	drm/amdgpu/display: fix ref count leak when pm_runtime_get_sync fails
	scsi: lpfc: Fix shost refcount mismatch when deleting vport
	xfs: Don't allow logging of XFS_ISTALE inodes
	selftests/powerpc: Purge extra count_pmc() calls of ebb selftests
	f2fs: fix error path in do_recover_data()
	omapfb: fix multiple reference count leaks due to pm_runtime_get_sync
	PCI: Fix pci_create_slot() reference count leak
	ARM: dts: ls1021a: output PPS signal on FIPER2
	rtlwifi: rtl8192cu: Prevent leaking urb
	mips/vdso: Fix resource leaks in genvdso.c
	cec-api: prevent leaking memory through hole in structure
	HID: quirks: add NOGET quirk for Logitech GROUP
	f2fs: fix use-after-free issue
	drm/nouveau/drm/noveau: fix reference count leak in nouveau_fbcon_open
	drm/nouveau: fix reference count leak in nv50_disp_atomic_commit
	drm/nouveau: Fix reference count leak in nouveau_connector_detect
	locking/lockdep: Fix overflow in presentation of average lock-time
	btrfs: file: reserve qgroup space after the hole punch range is locked
	scsi: iscsi: Do not put host in iscsi_set_flashnode_param()
	ceph: fix potential mdsc use-after-free crash
	scsi: fcoe: Memory leak fix in fcoe_sysfs_fcf_del()
	EDAC/ie31200: Fallback if host bridge device is already initialized
	KVM: arm64: Fix symbol dependency in __hyp_call_panic_nvhe
	powerpc/spufs: add CONFIG_COREDUMP dependency
	USB: sisusbvga: Fix a potential UB casued by left shifting a negative value
	efi: provide empty efi_enter_virtual_mode implementation
	Revert "ath10k: fix DMA related firmware crashes on multiple devices"
	media: gpio-ir-tx: improve precision of transmitted signal due to scheduling
	drm/msm/adreno: fix updating ring fence
	nvme-fc: Fix wrong return value in __nvme_fc_init_request()
	null_blk: fix passing of REQ_FUA flag in null_handle_rq
	i2c: rcar: in slave mode, clear NACK earlier
	usb: gadget: f_tcm: Fix some resource leaks in some error paths
	jbd2: make sure jh have b_transaction set in refile/unfile_buffer
	ext4: don't BUG on inconsistent journal feature
	ext4: handle read only external journal device
	jbd2: abort journal if free a async write error metadata buffer
	ext4: handle option set by mount flags correctly
	ext4: handle error of ext4_setup_system_zone() on remount
	ext4: correctly restore system zone info when remount fails
	fs: prevent BUG_ON in submit_bh_wbc()
	spi: stm32: fix stm32_spi_prepare_mbr in case of odd clk_rate
	s390/cio: add cond_resched() in the slow_eval_known_fn() loop
	ASoC: wm8994: Avoid attempts to read unreadable registers
	scsi: fcoe: Fix I/O path allocation
	scsi: ufs: Fix possible infinite loop in ufshcd_hold
	scsi: ufs: Improve interrupt handling for shared interrupts
	scsi: ufs: Clean up completed request without interrupt notification
	scsi: qla2xxx: Check if FW supports MQ before enabling
	scsi: qla2xxx: Fix null pointer access during disconnect from subsystem
	Revert "scsi: qla2xxx: Fix crash on qla2x00_mailbox_command"
	macvlan: validate setting of multiple remote source MAC addresses
	net: gianfar: Add of_node_put() before goto statement
	powerpc/perf: Fix soft lockups due to missed interrupt accounting
	block: loop: set discard granularity and alignment for block device backed loop
	HID: i2c-hid: Always sleep 60ms after I2C_HID_PWR_ON commands
	blk-mq: order adding requests to hctx->dispatch and checking SCHED_RESTART
	btrfs: reset compression level for lzo on remount
	btrfs: fix space cache memory leak after transaction abort
	fbcon: prevent user font height or width change from causing potential out-of-bounds access
	USB: lvtest: return proper error code in probe
	vt: defer kfree() of vc_screenbuf in vc_do_resize()
	vt_ioctl: change VT_RESIZEX ioctl to check for error return from vc_resize()
	serial: samsung: Removes the IRQ not found warning
	serial: pl011: Fix oops on -EPROBE_DEFER
	serial: pl011: Don't leak amba_ports entry on driver register error
	serial: 8250_exar: Fix number of ports for Commtech PCIe cards
	serial: 8250: change lock order in serial8250_do_startup()
	writeback: Protect inode->i_io_list with inode->i_lock
	writeback: Avoid skipping inode writeback
	writeback: Fix sync livelock due to b_dirty_time processing
	XEN uses irqdesc::irq_data_common::handler_data to store a per interrupt XEN data pointer which contains XEN specific information.
	usb: host: xhci: fix ep context print mismatch in debugfs
	xhci: Do warm-reset when both CAS and XDEV_RESUME are set
	xhci: Always restore EP_SOFT_CLEAR_TOGGLE even if ep reset failed
	PM: sleep: core: Fix the handling of pending runtime resume requests
	device property: Fix the secondary firmware node handling in set_primary_fwnode()
	genirq/matrix: Deal with the sillyness of for_each_cpu() on UP
	irqchip/stm32-exti: Avoid losing interrupts due to clearing pending bits by mistake
	drm/amdgpu: Fix buffer overflow in INFO ioctl
	drm/amd/pm: correct Vega10 swctf limit setting
	drm/amd/pm: correct Vega12 swctf limit setting
	USB: yurex: Fix bad gfp argument
	usb: uas: Add quirk for PNY Pro Elite
	USB: quirks: Add no-lpm quirk for another Raydium touchscreen
	USB: quirks: Ignore duplicate endpoint on Sound Devices MixPre-D
	USB: Ignore UAS for JMicron JMS567 ATA/ATAPI Bridge
	usb: host: ohci-exynos: Fix error handling in exynos_ohci_probe()
	USB: gadget: u_f: add overflow checks to VLA macros
	USB: gadget: f_ncm: add bounds checks to ncm_unwrap_ntb()
	USB: gadget: u_f: Unbreak offset calculation in VLAs
	USB: cdc-acm: rework notification_buffer resizing
	usb: storage: Add unusual_uas entry for Sony PSZ drives
	btrfs: check the right error variable in btrfs_del_dir_entries_in_log
	usb: dwc3: gadget: Don't setup more than requested
	usb: dwc3: gadget: Fix handling ZLP
	usb: dwc3: gadget: Handle ZLP for sg requests
	tpm: Unify the mismatching TPM space buffer sizes
	HID: hiddev: Fix slab-out-of-bounds write in hiddev_ioctl_usage()
	ALSA: usb-audio: Update documentation comment for MS2109 quirk
	Linux 4.19.143

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I8b6e29eda77bd69df30132842cf28019c8e7c1a3
2020-09-03 13:19:20 +02:00
Ming Lei
77064570e4 blk-mq: order adding requests to hctx->dispatch and checking SCHED_RESTART
commit d7d8535f377e9ba87edbf7fbbd634ac942f3f54f upstream.

SCHED_RESTART code path is relied to re-run queue for dispatch requests
in hctx->dispatch. Meantime the SCHED_RSTART flag is checked when adding
requests to hctx->dispatch.

memory barriers have to be used for ordering the following two pair of OPs:

1) adding requests to hctx->dispatch and checking SCHED_RESTART in
blk_mq_dispatch_rq_list()

2) clearing SCHED_RESTART and checking if there is request in hctx->dispatch
in blk_mq_sched_restart().

Without the added memory barrier, either:

1) blk_mq_sched_restart() may miss requests added to hctx->dispatch meantime
blk_mq_dispatch_rq_list() observes SCHED_RESTART, and not run queue in
dispatch side

or

2) blk_mq_dispatch_rq_list still sees SCHED_RESTART, and not run queue
in dispatch side, meantime checking if there is request in
hctx->dispatch from blk_mq_sched_restart() is missed.

IO hang in ltp/fs_fill test is reported by kernel test robot:

	https://lkml.org/lkml/2020/7/26/77

Turns out it is caused by the above out-of-order OPs. And the IO hang
can't be observed any more after applying this patch.

Fixes: bd166ef183 ("blk-mq-sched: add framework for MQ capable IO schedulers")
Reported-by: kernel test robot <rong.a.chen@intel.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: David Jeffery <djeffery@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-03 11:24:26 +02:00
Greg Kroah-Hartman
588b1f9c92 Merge 4.19.133 into android-4.19-stable
Changes in 4.19.133
	KVM: s390: reduce number of IO pins to 1
	spi: spi-fsl-dspi: Adding shutdown hook
	spi: spi-fsl-dspi: Fix lockup if device is removed during SPI transfer
	spi: spi-fsl-dspi: use IRQF_SHARED mode to request IRQ
	spi: spi-fsl-dspi: Fix external abort on interrupt in resume or exit paths
	regmap: fix alignment issue
	ARM: dts: omap4-droid4: Fix spi configuration and increase rate
	drm/tegra: hub: Do not enable orphaned window group
	gpu: host1x: Detach driver on unregister
	spi: spidev: fix a race between spidev_release and spidev_remove
	spi: spidev: fix a potential use-after-free in spidev_release()
	ixgbe: protect ring accesses with READ- and WRITE_ONCE
	i40e: protect ring accesses with READ- and WRITE_ONCE
	drm: panel-orientation-quirks: Add quirk for Asus T101HA panel
	drm: panel-orientation-quirks: Use generic orientation-data for Acer S1003
	s390/kasan: fix early pgm check handler execution
	cifs: update ctime and mtime during truncate
	ARM: imx6: add missing put_device() call in imx6q_suspend_init()
	scsi: mptscsih: Fix read sense data size
	usb: dwc3: pci: Fix reference count leak in dwc3_pci_resume_work
	block: release bip in a right way in error path
	nvme-rdma: assign completion vector correctly
	x86/entry: Increase entry_stack size to a full page
	net: qrtr: Fix an out of bounds read qrtr_endpoint_post()
	drm/mediatek: Check plane visibility in atomic_update
	net: cxgb4: fix return error value in t4_prep_fw
	smsc95xx: check return value of smsc95xx_reset
	smsc95xx: avoid memory leak in smsc95xx_bind
	net: hns3: fix use-after-free when doing self test
	ALSA: compress: fix partial_drain completion state
	arm64: kgdb: Fix single-step exception handling oops
	nbd: Fix memory leak in nbd_add_socket
	cxgb4: fix all-mask IP address comparison
	bnxt_en: fix NULL dereference in case SR-IOV configuration fails
	net: macb: mark device wake capable when "magic-packet" property present
	mlxsw: spectrum_router: Remove inappropriate usage of WARN_ON()
	ALSA: opl3: fix infoleak in opl3
	ALSA: hda - let hs_mic be picked ahead of hp_mic
	ALSA: usb-audio: add quirk for MacroSilicon MS2109
	KVM: arm64: Fix definition of PAGE_HYP_DEVICE
	KVM: arm64: Stop clobbering x0 for HVC_SOFT_RESTART
	KVM: x86: bit 8 of non-leaf PDPEs is not reserved
	KVM: x86: Inject #GP if guest attempts to toggle CR4.LA57 in 64-bit mode
	KVM: x86: Mark CR4.TSD as being possibly owned by the guest
	kallsyms: Refactor kallsyms_show_value() to take cred
	kernel: module: Use struct_size() helper
	module: Refactor section attr into bin attribute
	module: Do not expose section addresses to non-CAP_SYSLOG
	kprobes: Do not expose probe addresses to non-CAP_SYSLOG
	bpf: Check correct cred for CAP_SYSLOG in bpf_dump_raw_ok()
	Revert "ath9k: Fix general protection fault in ath9k_hif_usb_rx_cb"
	btrfs: fix fatal extent_buffer readahead vs releasepage race
	drm/radeon: fix double free
	dm: use noio when sending kobject event
	ARC: entry: fix potential EFA clobber when TIF_SYSCALL_TRACE
	ARC: elf: use right ELF_ARCH
	s390/mm: fix huge pte soft dirty copying
	Linux 4.19.133

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I0a0198d501017d2bc701b653d75dc9cedd1ebbd9
2020-07-17 07:54:52 +02:00
Chengguang Xu
1d269061bb block: release bip in a right way in error path
[ Upstream commit 0b8eb629a700c0ef15a437758db8255f8444e76c ]

Release bip using kfree() in error path when that was allocated
by kmalloc().

Signed-off-by: Chengguang Xu <cgxu519@mykernel.net>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-07-16 08:17:23 +02:00
Greg Kroah-Hartman
b3293788b9 Linux 4.19.131
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Merge 4.19.131 into android-4.19-stable

Changes in 4.19.131
	net: be more gentle about silly gso requests coming from user
	block/bio-integrity: don't free 'buf' if bio_integrity_add_page() failed
	fanotify: fix ignore mask logic for events on child and on dir
	mtd: rawnand: marvell: Fix the condition on a return code
	net: bcmgenet: remove HFB_CTRL access
	net: sched: export __netdev_watchdog_up()
	EDAC/amd64: Add Family 17h Model 30h PCI IDs
	i2c: tegra: Cleanup kerneldoc comments
	i2c: tegra: Add missing kerneldoc for some fields
	i2c: tegra: Fix Maximum transfer size
	fix a braino in "sparc32: fix register window handling in genregs32_[gs]et()"
	ALSA: hda/realtek - Enable the headset of ASUS B9450FA with ALC294
	ALSA: hda/realtek: Enable mute LED on an HP system
	ALSA: hda/realtek - Enable micmute LED on and HP system
	apparmor: don't try to replace stale label in ptraceme check
	ibmveth: Fix max MTU limit
	mld: fix memory leak in ipv6_mc_destroy_dev()
	net: bridge: enfore alignment for ethernet address
	net: fix memleak in register_netdevice()
	net: place xmit recursion in softnet data
	net: use correct this_cpu primitive in dev_recursion_level
	net: increment xmit_recursion level in dev_direct_xmit()
	net: usb: ax88179_178a: fix packet alignment padding
	rocker: fix incorrect error handling in dma_rings_init
	rxrpc: Fix notification call on completion of discarded calls
	sctp: Don't advertise IPv4 addresses if ipv6only is set on the socket
	tcp: don't ignore ECN CWR on pure ACK
	tcp: grow window for OOO packets only for SACK flows
	tg3: driver sleeps indefinitely when EEH errors exceed eeh_max_freezes
	ip6_gre: fix use-after-free in ip6gre_tunnel_lookup()
	net: phy: Check harder for errors in get_phy_id()
	ip_tunnel: fix use-after-free in ip_tunnel_lookup()
	sch_cake: don't try to reallocate or unshare skb unconditionally
	sch_cake: fix a few style nits
	tcp_cubic: fix spurious HYSTART_DELAY exit upon drop in min RTT
	sch_cake: don't call diffserv parsing code when it is not needed
	net: Fix the arp error in some cases
	net: Do not clear the sock TX queue in sk_set_socket()
	net: core: reduce recursion limit value
	USB: ohci-sm501: Add missed iounmap() in remove
	usb: dwc2: Postponed gadget registration to the udc class driver
	usb: add USB_QUIRK_DELAY_INIT for Logitech C922
	USB: ehci: reopen solution for Synopsys HC bug
	usb: host: xhci-mtk: avoid runtime suspend when removing hcd
	xhci: Poll for U0 after disabling USB2 LPM
	usb: host: ehci-exynos: Fix error check in exynos_ehci_probe()
	usb: typec: tcpci_rt1711h: avoid screaming irq causing boot hangs
	ALSA: usb-audio: add quirk for Denon DCD-1500RE
	ALSA: usb-audio: add quirk for Samsung USBC Headset (AKG)
	ALSA: usb-audio: Fix OOB access of mixer element list
	scsi: zfcp: Fix panic on ERP timeout for previously dismissed ERP action
	xhci: Fix incorrect EP_STATE_MASK
	xhci: Fix enumeration issue when setting max packet size for FS devices.
	xhci: Return if xHCI doesn't support LPM
	cdc-acm: Add DISABLE_ECHO quirk for Microchip/SMSC chip
	loop: replace kill_bdev with invalidate_bdev
	IB/mad: Fix use after free when destroying MAD agent
	cifs/smb3: Fix data inconsistent when punch hole
	cifs/smb3: Fix data inconsistent when zero file range
	xfrm: Fix double ESP trailer insertion in IPsec crypto offload.
	ASoC: q6asm: handle EOS correctly
	efi/esrt: Fix reference count leak in esre_create_sysfs_entry.
	regualtor: pfuze100: correct sw1a/sw2 on pfuze3000
	ASoC: fsl_ssi: Fix bclk calculation for mono channel
	ARM: dts: Fix duovero smsc interrupt for suspend
	x86/resctrl: Fix a NULL vs IS_ERR() static checker warning in rdt_cdp_peer_get()
	regmap: Fix memory leak from regmap_register_patch
	ARM: dts: NSP: Correct FA2 mailbox node
	rxrpc: Fix handling of rwind from an ACK packet
	RDMA/qedr: Fix KASAN: use-after-free in ucma_event_handler+0x532
	RDMA/cma: Protect bind_list and listen_list while finding matching cm id
	ASoC: rockchip: Fix a reference count leak.
	RDMA/mad: Fix possible memory leak in ib_mad_post_receive_mads()
	net: qed: fix left elements count calculation
	net: qed: fix NVMe login fails over VFs
	net: qed: fix excessive QM ILT lines consumption
	cxgb4: move handling L2T ARP failures to caller
	ARM: imx5: add missing put_device() call in imx_suspend_alloc_ocram()
	usb: gadget: udc: Potential Oops in error handling code
	netfilter: ipset: fix unaligned atomic access
	net: bcmgenet: use hardware padding of runt frames
	i2c: fsi: Fix the port number field in status register
	i2c: core: check returned size of emulated smbus block read
	sched/deadline: Initialize ->dl_boosted
	sched/core: Fix PI boosting between RT and DEADLINE tasks
	sata_rcar: handle pm_runtime_get_sync failure cases
	ata/libata: Fix usage of page address by page_address in ata_scsi_mode_select_xlat function
	drm/amd/display: Use kfree() to free rgb_user in calculate_user_regamma_ramp()
	riscv/atomic: Fix sign extension for RV64I
	hwrng: ks-sa - Fix runtime PM imbalance on error
	ibmvnic: Harden device login requests
	net: alx: fix race condition in alx_remove
	s390/ptrace: fix setting syscall number
	s390/vdso: fix vDSO clock_getres()
	arm64: sve: Fix build failure when ARM64_SVE=y and SYSCTL=n
	kbuild: improve cc-option to clean up all temporary files
	blktrace: break out of blktrace setup on concurrent calls
	RISC-V: Don't allow write+exec only page mapping request in mmap
	ALSA: hda: Add NVIDIA codec IDs 9a & 9d through a0 to patch table
	ALSA: hda/realtek - Add quirk for MSI GE63 laptop
	ACPI: sysfs: Fix pm_profile_attr type
	erofs: fix partially uninitialized misuse in z_erofs_onlinepage_fixup
	KVM: X86: Fix MSR range of APIC registers in X2APIC mode
	KVM: nVMX: Plumb L2 GPA through to PML emulation
	x86/asm/64: Align start of __clear_user() loop to 16-bytes
	btrfs: fix data block group relocation failure due to concurrent scrub
	btrfs: fix failure of RWF_NOWAIT write into prealloc extent beyond eof
	mm/slab: use memzero_explicit() in kzfree()
	ocfs2: avoid inode removal while nfsd is accessing it
	ocfs2: load global_inode_alloc
	ocfs2: fix value of OCFS2_INVALID_SLOT
	ocfs2: fix panic on nfs server over ocfs2
	arm64: perf: Report the PC value in REGS_ABI_32 mode
	tracing: Fix event trigger to accept redundant spaces
	ring-buffer: Zero out time extend if it is nested and not absolute
	drm: rcar-du: Fix build error
	drm/radeon: fix fb_div check in ni_init_smc_spll_table()
	Staging: rtl8723bs: prevent buffer overflow in update_sta_support_rate()
	sunrpc: fixed rollback in rpc_gssd_dummy_populate()
	SUNRPC: Properly set the @subbuf parameter of xdr_buf_subsegment()
	pNFS/flexfiles: Fix list corruption if the mirror count changes
	NFSv4 fix CLOSE not waiting for direct IO compeletion
	dm writecache: correct uncommitted_block when discarding uncommitted entry
	dm writecache: add cond_resched to loop in persistent_memory_claim()
	xfs: add agf freeblocks verify in xfs_agf_verify
	Revert "tty: hvc: Fix data abort due to race in hvc_open"
	Linux 4.19.131

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I2c5abdfc2979e50d441bb0e0bcd499e03c61cefd
2020-07-01 13:11:06 +02:00
yu kuai
81abe6ad4d block/bio-integrity: don't free 'buf' if bio_integrity_add_page() failed
commit a75ca9303175d36af93c0937dd9b1a6422908b8d upstream.

commit e7bf90e5afe3 ("block/bio-integrity: fix a memory leak bug") added
a kfree() for 'buf' if bio_integrity_add_page() returns '0'. However,
the object will be freed in bio_integrity_free() since 'bio->bi_opf' and
'bio->bi_integrity' were set previousy in bio_integrity_alloc().

Fixes: commit e7bf90e5afe3 ("block/bio-integrity: fix a memory leak bug")
Signed-off-by: yu kuai <yukuai3@huawei.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Bob Liu <bob.liu@oracle.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-06-30 23:17:00 -04:00
Eric Biggers
5da8f890a9 ANDROID: block: backport the ability to specify max_dun_bytes
Backport a fix from the v7 inline crypto patchset which ensures that the
block layer knows the number of DUN bytes the inline encryption hardware
supports, so that hardware isn't used when it shouldn't be.

(This unfortunately means introducing some increasing long argument
lists; this was all already fixed up in later versions of the patchset.)

To avoid breaking the KMI for drivers, don't add a dun_bytes argument to
keyslot_manager_create() but rather allow drivers to call
keyslot_manager_set_max_dun_bytes() to override the default.  Also,
don't add dun_bytes as a new field in 'struct blk_crypto_key' but rather
pack it into the existing 'hash' field which is for block layer use.

Bug: 144046242
Bug: 153512828
Change-Id: I285f36557fb3eafc5f2f64727ef1740938b59dd7
Signed-off-by: Eric Biggers <ebiggers@google.com>
2020-05-14 15:44:27 -07:00
Greg Kroah-Hartman
95bff4cdab This is the 4.19.116 stable release
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Merge 4.19.116 into android-4.19

Changes in 4.19.116
	ARM: dts: sun8i-a83t-tbs-a711: HM5065 doesn't like such a high voltage
	bus: sunxi-rsb: Return correct data when mixing 16-bit and 8-bit reads
	net: vxge: fix wrong __VA_ARGS__ usage
	hinic: fix a bug of waitting for IO stopped
	hinic: fix wrong para of wait_for_completion_timeout
	cxgb4/ptp: pass the sign of offset delta in FW CMD
	qlcnic: Fix bad kzalloc null test
	i2c: st: fix missing struct parameter description
	cpufreq: imx6q: Fixes unwanted cpu overclocking on i.MX6ULL
	media: venus: hfi_parser: Ignore HEVC encoding for V1
	firmware: arm_sdei: fix double-lock on hibernate with shared events
	null_blk: Fix the null_add_dev() error path
	null_blk: Handle null_add_dev() failures properly
	null_blk: fix spurious IO errors after failed past-wp access
	xhci: bail out early if driver can't accress host in resume
	x86: Don't let pgprot_modify() change the page encryption bit
	block: keep bdi->io_pages in sync with max_sectors_kb for stacked devices
	irqchip/versatile-fpga: Handle chained IRQs properly
	sched: Avoid scale real weight down to zero
	selftests/x86/ptrace_syscall_32: Fix no-vDSO segfault
	PCI/switchtec: Fix init_completion race condition with poll_wait()
	media: i2c: video-i2c: fix build errors due to 'imply hwmon'
	libata: Remove extra scsi_host_put() in ata_scsi_add_hosts()
	pstore/platform: fix potential mem leak if pstore_init_fs failed
	gfs2: Don't demote a glock until its revokes are written
	x86/boot: Use unsigned comparison for addresses
	efi/x86: Ignore the memory attributes table on i386
	genirq/irqdomain: Check pointer in irq_domain_alloc_irqs_hierarchy()
	block: Fix use-after-free issue accessing struct io_cq
	media: i2c: ov5695: Fix power on and off sequences
	usb: dwc3: core: add support for disabling SS instances in park mode
	irqchip/gic-v4: Provide irq_retrigger to avoid circular locking dependency
	md: check arrays is suspended in mddev_detach before call quiesce operations
	firmware: fix a double abort case with fw_load_sysfs_fallback
	locking/lockdep: Avoid recursion in lockdep_count_{for,back}ward_deps()
	block, bfq: fix use-after-free in bfq_idle_slice_timer_body
	btrfs: qgroup: ensure qgroup_rescan_running is only set when the worker is at least queued
	btrfs: remove a BUG_ON() from merge_reloc_roots()
	btrfs: track reloc roots based on their commit root bytenr
	IB/mlx5: Replace tunnel mpls capability bits for tunnel_offloads
	uapi: rename ext2_swab() to swab() and share globally in swab.h
	slub: improve bit diffusion for freelist ptr obfuscation
	ASoC: fix regwmask
	ASoC: dapm: connect virtual mux with default value
	ASoC: dpcm: allow start or stop during pause for backend
	ASoC: topology: use name_prefix for new kcontrol
	usb: gadget: f_fs: Fix use after free issue as part of queue failure
	usb: gadget: composite: Inform controller driver of self-powered
	ALSA: usb-audio: Add mixer workaround for TRX40 and co
	ALSA: hda: Add driver blacklist
	ALSA: hda: Fix potential access overflow in beep helper
	ALSA: ice1724: Fix invalid access for enumerated ctl items
	ALSA: pcm: oss: Fix regression by buffer overflow fix
	ALSA: doc: Document PC Beep Hidden Register on Realtek ALC256
	ALSA: hda/realtek - Set principled PC Beep configuration for ALC256
	ALSA: hda/realtek - Remove now-unnecessary XPS 13 headphone noise fixups
	ALSA: hda/realtek - Add quirk for MSI GL63
	media: ti-vpe: cal: fix disable_irqs to only the intended target
	acpi/x86: ignore unspecified bit positions in the ACPI global lock field
	thermal: devfreq_cooling: inline all stubs for CONFIG_DEVFREQ_THERMAL=n
	nvme-fc: Revert "add module to ops template to allow module references"
	nvme: Treat discovery subsystems as unique subsystems
	PCI: pciehp: Fix indefinite wait on sysfs requests
	PCI/ASPM: Clear the correct bits when enabling L1 substates
	PCI: Add boot interrupt quirk mechanism for Xeon chipsets
	PCI: endpoint: Fix for concurrent memory allocation in OB address region
	tpm: Don't make log failures fatal
	tpm: tpm1_bios_measurements_next should increase position index
	tpm: tpm2_bios_measurements_next should increase position index
	KEYS: reaching the keys quotas correctly
	irqchip/versatile-fpga: Apply clear-mask earlier
	pstore: pstore_ftrace_seq_next should increase position index
	MIPS/tlbex: Fix LDDIR usage in setup_pw() for Loongson-3
	MIPS: OCTEON: irq: Fix potential NULL pointer dereference
	ath9k: Handle txpower changes even when TPC is disabled
	signal: Extend exec_id to 64bits
	x86/entry/32: Add missing ASM_CLAC to general_protection entry
	KVM: nVMX: Properly handle userspace interrupt window request
	KVM: s390: vsie: Fix region 1 ASCE sanity shadow address checks
	KVM: s390: vsie: Fix delivery of addressing exceptions
	KVM: x86: Allocate new rmap and large page tracking when moving memslot
	KVM: VMX: Always VMCLEAR in-use VMCSes during crash with kexec support
	KVM: x86: Gracefully handle __vmalloc() failure during VM allocation
	KVM: VMX: fix crash cleanup when KVM wasn't used
	CIFS: Fix bug which the return value by asynchronous read is error
	mtd: spinand: Stop using spinand->oobbuf for buffering bad block markers
	mtd: spinand: Do not erase the block before writing a bad block marker
	Btrfs: fix crash during unmount due to race with delayed inode workers
	btrfs: set update the uuid generation as soon as possible
	btrfs: drop block from cache on error in relocation
	btrfs: fix missing file extent item for hole after ranged fsync
	btrfs: fix missing semaphore unlock in btrfs_sync_file
	crypto: mxs-dcp - fix scatterlist linearization for hash
	erofs: correct the remaining shrink objects
	powerpc/pseries: Drop pointless static qualifier in vpa_debugfs_init()
	x86/speculation: Remove redundant arch_smt_update() invocation
	tools: gpio: Fix out-of-tree build regression
	mm: Use fixed constant in page_frag_alloc instead of size + 1
	net: qualcomm: rmnet: Allow configuration updates to existing devices
	arm64: dts: allwinner: h6: Fix PMU compatible
	dm writecache: add cond_resched to avoid CPU hangs
	dm verity fec: fix memory leak in verity_fec_dtr
	scsi: zfcp: fix missing erp_lock in port recovery trigger for point-to-point
	arm64: armv8_deprecated: Fix undef_hook mask for thumb setend
	selftests: vm: drop dependencies on page flags from mlock2 tests
	rtc: omap: Use define directive for PIN_CONFIG_ACTIVE_HIGH
	drm/etnaviv: rework perfmon query infrastructure
	powerpc/pseries: Avoid NULL pointer dereference when drmem is unavailable
	NFS: Fix a page leak in nfs_destroy_unlinked_subrequests()
	ext4: fix a data race at inode->i_blocks
	fs/filesystems.c: downgrade user-reachable WARN_ONCE() to pr_warn_once()
	ocfs2: no need try to truncate file beyond i_size
	perf tools: Support Python 3.8+ in Makefile
	s390/diag: fix display of diagnose call statistics
	Input: i8042 - add Acer Aspire 5738z to nomux list
	clk: ingenic/jz4770: Exit with error if CGU init failed
	kmod: make request_module() return an error when autoloading is disabled
	cpufreq: powernv: Fix use-after-free
	hfsplus: fix crash and filesystem corruption when deleting files
	libata: Return correct status in sata_pmp_eh_recover_pm() when ATA_DFLAG_DETACH is set
	ipmi: fix hung processes in __get_guid()
	xen/blkfront: fix memory allocation flags in blkfront_setup_indirect()
	powerpc/powernv/idle: Restore AMR/UAMOR/AMOR after idle
	powerpc/64/tm: Don't let userspace set regs->trap via sigreturn
	powerpc/hash64/devmap: Use H_PAGE_THP_HUGE when setting up huge devmap PTE entries
	powerpc/xive: Use XIVE_BAD_IRQ instead of zero to catch non configured IPIs
	powerpc/kprobes: Ignore traps that happened in real mode
	scsi: mpt3sas: Fix kernel panic observed on soft HBA unplug
	powerpc: Add attributes for setjmp/longjmp
	powerpc: Make setjmp/longjmp signature standard
	btrfs: use nofs allocations for running delayed items
	dm zoned: remove duplicate nr_rnd_zones increase in dmz_init_zone()
	crypto: caam - update xts sector size for large input length
	crypto: ccree - improve error handling
	crypto: ccree - zero out internal struct before use
	crypto: ccree - don't mangle the request assoclen
	crypto: ccree - dec auth tag size from cryptlen map
	crypto: ccree - only try to map auth tag if needed
	Revert "drm/dp_mst: Remove VCPI while disabling topology mgr"
	drm/dp_mst: Fix clearing payload state on topology disable
	drm: Remove PageReserved manipulation from drm_pci_alloc
	ftrace/kprobe: Show the maxactive number on kprobe_events
	powerpc/fsl_booke: Avoid creating duplicate tlb1 entry
	misc: echo: Remove unnecessary parentheses and simplify check for zero
	etnaviv: perfmon: fix total and idle HI cyleces readout
	mfd: dln2: Fix sanity checking for endpoints
	efi/x86: Fix the deletion of variables in mixed mode
	Linux 4.19.116

Change-Id: If09fbb53fcb11ea01eaaa7fee7ed21ed6234f352
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2020-04-18 13:33:51 +02:00
Zhiqiang Liu
d999063be0 block, bfq: fix use-after-free in bfq_idle_slice_timer_body
[ Upstream commit 2f95fa5c955d0a9987ffdc3a095e2f4e62c5f2a9 ]

In bfq_idle_slice_timer func, bfqq = bfqd->in_service_queue is
not in bfqd-lock critical section. The bfqq, which is not
equal to NULL in bfq_idle_slice_timer, may be freed after passing
to bfq_idle_slice_timer_body. So we will access the freed memory.

In addition, considering the bfqq may be in race, we should
firstly check whether bfqq is in service before doing something
on it in bfq_idle_slice_timer_body func. If the bfqq in race is
not in service, it means the bfqq has been expired through
__bfq_bfqq_expire func, and wait_request flags has been cleared in
__bfq_bfqd_reset_in_service func. So we do not need to re-clear the
wait_request of bfqq which is not in service.

KASAN log is given as follows:
[13058.354613] ==================================================================
[13058.354640] BUG: KASAN: use-after-free in bfq_idle_slice_timer+0xac/0x290
[13058.354644] Read of size 8 at addr ffffa02cf3e63f78 by task fork13/19767
[13058.354646]
[13058.354655] CPU: 96 PID: 19767 Comm: fork13
[13058.354661] Call trace:
[13058.354667]  dump_backtrace+0x0/0x310
[13058.354672]  show_stack+0x28/0x38
[13058.354681]  dump_stack+0xd8/0x108
[13058.354687]  print_address_description+0x68/0x2d0
[13058.354690]  kasan_report+0x124/0x2e0
[13058.354697]  __asan_load8+0x88/0xb0
[13058.354702]  bfq_idle_slice_timer+0xac/0x290
[13058.354707]  __hrtimer_run_queues+0x298/0x8b8
[13058.354710]  hrtimer_interrupt+0x1b8/0x678
[13058.354716]  arch_timer_handler_phys+0x4c/0x78
[13058.354722]  handle_percpu_devid_irq+0xf0/0x558
[13058.354731]  generic_handle_irq+0x50/0x70
[13058.354735]  __handle_domain_irq+0x94/0x110
[13058.354739]  gic_handle_irq+0x8c/0x1b0
[13058.354742]  el1_irq+0xb8/0x140
[13058.354748]  do_wp_page+0x260/0xe28
[13058.354752]  __handle_mm_fault+0x8ec/0x9b0
[13058.354756]  handle_mm_fault+0x280/0x460
[13058.354762]  do_page_fault+0x3ec/0x890
[13058.354765]  do_mem_abort+0xc0/0x1b0
[13058.354768]  el0_da+0x24/0x28
[13058.354770]
[13058.354773] Allocated by task 19731:
[13058.354780]  kasan_kmalloc+0xe0/0x190
[13058.354784]  kasan_slab_alloc+0x14/0x20
[13058.354788]  kmem_cache_alloc_node+0x130/0x440
[13058.354793]  bfq_get_queue+0x138/0x858
[13058.354797]  bfq_get_bfqq_handle_split+0xd4/0x328
[13058.354801]  bfq_init_rq+0x1f4/0x1180
[13058.354806]  bfq_insert_requests+0x264/0x1c98
[13058.354811]  blk_mq_sched_insert_requests+0x1c4/0x488
[13058.354818]  blk_mq_flush_plug_list+0x2d4/0x6e0
[13058.354826]  blk_flush_plug_list+0x230/0x548
[13058.354830]  blk_finish_plug+0x60/0x80
[13058.354838]  read_pages+0xec/0x2c0
[13058.354842]  __do_page_cache_readahead+0x374/0x438
[13058.354846]  ondemand_readahead+0x24c/0x6b0
[13058.354851]  page_cache_sync_readahead+0x17c/0x2f8
[13058.354858]  generic_file_buffered_read+0x588/0xc58
[13058.354862]  generic_file_read_iter+0x1b4/0x278
[13058.354965]  ext4_file_read_iter+0xa8/0x1d8 [ext4]
[13058.354972]  __vfs_read+0x238/0x320
[13058.354976]  vfs_read+0xbc/0x1c0
[13058.354980]  ksys_read+0xdc/0x1b8
[13058.354984]  __arm64_sys_read+0x50/0x60
[13058.354990]  el0_svc_common+0xb4/0x1d8
[13058.354994]  el0_svc_handler+0x50/0xa8
[13058.354998]  el0_svc+0x8/0xc
[13058.354999]
[13058.355001] Freed by task 19731:
[13058.355007]  __kasan_slab_free+0x120/0x228
[13058.355010]  kasan_slab_free+0x10/0x18
[13058.355014]  kmem_cache_free+0x288/0x3f0
[13058.355018]  bfq_put_queue+0x134/0x208
[13058.355022]  bfq_exit_icq_bfqq+0x164/0x348
[13058.355026]  bfq_exit_icq+0x28/0x40
[13058.355030]  ioc_exit_icq+0xa0/0x150
[13058.355035]  put_io_context_active+0x250/0x438
[13058.355038]  exit_io_context+0xd0/0x138
[13058.355045]  do_exit+0x734/0xc58
[13058.355050]  do_group_exit+0x78/0x220
[13058.355054]  __wake_up_parent+0x0/0x50
[13058.355058]  el0_svc_common+0xb4/0x1d8
[13058.355062]  el0_svc_handler+0x50/0xa8
[13058.355066]  el0_svc+0x8/0xc
[13058.355067]
[13058.355071] The buggy address belongs to the object at ffffa02cf3e63e70#012 which belongs to the cache bfq_queue of size 464
[13058.355075] The buggy address is located 264 bytes inside of#012 464-byte region [ffffa02cf3e63e70, ffffa02cf3e64040)
[13058.355077] The buggy address belongs to the page:
[13058.355083] page:ffff7e80b3cf9800 count:1 mapcount:0 mapping:ffff802db5c90780 index:0xffffa02cf3e606f0 compound_mapcount: 0
[13058.366175] flags: 0x2ffffe0000008100(slab|head)
[13058.370781] raw: 2ffffe0000008100 ffff7e80b53b1408 ffffa02d730c1c90 ffff802db5c90780
[13058.370787] raw: ffffa02cf3e606f0 0000000000370023 00000001ffffffff 0000000000000000
[13058.370789] page dumped because: kasan: bad access detected
[13058.370791]
[13058.370792] Memory state around the buggy address:
[13058.370797]  ffffa02cf3e63e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fb fb
[13058.370801]  ffffa02cf3e63e80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[13058.370805] >ffffa02cf3e63f00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[13058.370808]                                                                 ^
[13058.370811]  ffffa02cf3e63f80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[13058.370815]  ffffa02cf3e64000: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
[13058.370817] ==================================================================
[13058.370820] Disabling lock debugging due to kernel taint

Here, we directly pass the bfqd to bfq_idle_slice_timer_body func.
--
V2->V3: rewrite the comment as suggested by Paolo Valente
V1->V2: add one comment, and add Fixes and Reported-by tag.

Fixes: aee69d78d ("block, bfq: introduce the BFQ-v0 I/O scheduler as an extra scheduler")
Acked-by: Paolo Valente <paolo.valente@linaro.org>
Reported-by: Wang Wang <wangwang2@huawei.com>
Signed-off-by: Zhiqiang Liu <liuzhiqiang26@huawei.com>
Signed-off-by: Feilong Lin <linfeilong@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-04-17 10:48:42 +02:00
Sahitya Tummala
cf535659b3 block: Fix use-after-free issue accessing struct io_cq
[ Upstream commit 30a2da7b7e225ef6c87a660419ea04d3cef3f6a7 ]

There is a potential race between ioc_release_fn() and
ioc_clear_queue() as shown below, due to which below kernel
crash is observed. It also can result into use-after-free
issue.

context#1:				context#2:
ioc_release_fn()			__ioc_clear_queue() gets the same icq
->spin_lock(&ioc->lock);		->spin_lock(&ioc->lock);
->ioc_destroy_icq(icq);
  ->list_del_init(&icq->q_node);
  ->call_rcu(&icq->__rcu_head,
  	icq_free_icq_rcu);
->spin_unlock(&ioc->lock);
					->ioc_destroy_icq(icq);
					  ->hlist_del_init(&icq->ioc_node);
					  This results into below crash as this memory
					  is now used by icq->__rcu_head in context#1.
					  There is a chance that icq could be free'd
					  as well.

22150.386550:   <6> Unable to handle kernel write to read-only memory
at virtual address ffffffaa8d31ca50
...
Call trace:
22150.607350:   <2>  ioc_destroy_icq+0x44/0x110
22150.611202:   <2>  ioc_clear_queue+0xac/0x148
22150.615056:   <2>  blk_cleanup_queue+0x11c/0x1a0
22150.619174:   <2>  __scsi_remove_device+0xdc/0x128
22150.623465:   <2>  scsi_forget_host+0x2c/0x78
22150.627315:   <2>  scsi_remove_host+0x7c/0x2a0
22150.631257:   <2>  usb_stor_disconnect+0x74/0xc8
22150.635371:   <2>  usb_unbind_interface+0xc8/0x278
22150.639665:   <2>  device_release_driver_internal+0x198/0x250
22150.644897:   <2>  device_release_driver+0x24/0x30
22150.649176:   <2>  bus_remove_device+0xec/0x140
22150.653204:   <2>  device_del+0x270/0x460
22150.656712:   <2>  usb_disable_device+0x120/0x390
22150.660918:   <2>  usb_disconnect+0xf4/0x2e0
22150.664684:   <2>  hub_event+0xd70/0x17e8
22150.668197:   <2>  process_one_work+0x210/0x480
22150.672222:   <2>  worker_thread+0x32c/0x4c8

Fix this by adding a new ICQ_DESTROYED flag in ioc_destroy_icq() to
indicate this icq is once marked as destroyed. Also, ensure
__ioc_clear_queue() is accessing icq within rcu_read_lock/unlock so
that icq doesn't get free'd up while it is still using it.

Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Co-developed-by: Pradeep P V K <ppvk@codeaurora.org>
Signed-off-by: Pradeep P V K <ppvk@codeaurora.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-04-17 10:48:41 +02:00
Konstantin Khlebnikov
fd39750834 block: keep bdi->io_pages in sync with max_sectors_kb for stacked devices
[ Upstream commit e74d93e96d721c4297f2a900ad0191890d2fc2b0 ]

Field bdi->io_pages added in commit 9491ae4aad ("mm: don't cap request
size based on read-ahead setting") removes unneeded split of read requests.

Stacked drivers do not call blk_queue_max_hw_sectors(). Instead they set
limits of their devices by blk_set_stacking_limits() + disk_stack_limits().
Field bio->io_pages stays zero until user set max_sectors_kb via sysfs.

This patch updates io_pages after merging limits in disk_stack_limits().

Commit c6d6e9b0f6b4 ("dm: do not allow readahead to limit IO size") fixed
the same problem for device-mapper devices, this one fixes MD RAIDs.

Fixes: 9491ae4aad ("mm: don't cap request size based on read-ahead setting")
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-by: Bob Liu <bob.liu@oracle.com>
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-04-17 10:48:39 +02:00
Eric Biggers
8f078b1b3a ANDROID: block: require drivers to declare supported crypto key type(s)
We need a way to tell which type of keys the inline crypto hardware
supports (standard, wrapped, or both), so that fallbacks can be used
when needed (either blk-crypto-fallback, or fscrypt fs-layer crypto).

We can't simply assume that

    keyslot_mgmt_ll_ops::derive_raw_secret == NULL

means only standard keys are supported and that

    keyslot_mgmt_ll_ops::derive_raw_secret != NULL

means that only wrapped keys are supported, because device-mapper
devices always implement this method.  Also, hardware might support both
types of keys.

Therefore, add a field keyslot_manager::features which contains a
bitmask of flags which indicate the supported types of keys.  Drivers
will need to fill this in.  This patch makes the UFS standard crypto
code set BLK_CRYPTO_FEATURE_STANDARD_KEYS, but UFS variant drivers may
need to set BLK_CRYPTO_FEATURE_WRAPPED_KEYS instead.

Then, make keyslot_manager_crypto_mode_supported() take the key type
into account.

Bug: 137270441
Bug: 151100202
Test: 'atest vts_kernel_encryption_test' on Pixel 4 with the
      inline crypto patches backported, and also on Cuttlefish.
Change-Id: Ied846c2767c1fd2f438792dcfd3649157e68b005
Signed-off-by: Eric Biggers <ebiggers@google.com>
2020-04-07 17:57:33 +00:00
Eric Biggers
ce1ccfb9ef ANDROID: block: make blk_crypto_start_using_mode() properly check for support
If blk-crypto-fallback is needed but is disabled by kconfig, make
blk_crypto_start_using_mode() return an error rather than succeeding.
Use ENOPKG, which matches the error code used by fscrypt when crypto API
support is missing with fs-layer encryption.

Also, if blk-crypto-fallback is needed but the algorithm is missing from
the kernel's crypto API, change the error code from ENOENT to ENOPKG.

This is needed for VtsKernelEncryptionTest to pass on some devices.

Bug: 137270441
Bug: 151100202
Test: 'atest vts_kernel_encryption_test' on Pixel 4 with the
      inline crypto patches backported, and also on Cuttlefish.
Change-Id: Iedf00ca8e48c74a5d4c40b12712f38738a04ef11
Signed-off-by: Eric Biggers <ebiggers@google.com>
2020-04-07 17:57:24 +00:00
Greg Kroah-Hartman
248555d63c This is the 4.19.113 stable release
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Merge 4.19.113 into android-4.19

Changes in 4.19.113
	drm/mediatek: Find the cursor plane instead of hard coding it
	spi: qup: call spi_qup_pm_resume_runtime before suspending
	powerpc: Include .BTF section
	ARM: dts: dra7: Add "dma-ranges" property to PCIe RC DT nodes
	spi: pxa2xx: Add CS control clock quirk
	spi/zynqmp: remove entry that causes a cs glitch
	drm/exynos: dsi: propagate error value and silence meaningless warning
	drm/exynos: dsi: fix workaround for the legacy clock name
	drivers/perf: arm_pmu_acpi: Fix incorrect checking of gicc pointer
	altera-stapl: altera_get_note: prevent write beyond end of 'key'
	dm bio record: save/restore bi_end_io and bi_integrity
	dm integrity: use dm_bio_record and dm_bio_restore
	riscv: avoid the PIC offset of static percpu data in module beyond 2G limits
	drm/amd/display: Clear link settings on MST disable connector
	drm/amd/display: fix dcc swath size calculations on dcn1
	xenbus: req->body should be updated before req->state
	xenbus: req->err should be updated before req->state
	block, bfq: fix overwrite of bfq_group pointer in bfq_find_set_group()
	parse-maintainers: Mark as executable
	USB: Disable LPM on WD19's Realtek Hub
	usb: quirks: add NO_LPM quirk for RTL8153 based ethernet adapters
	USB: serial: option: add ME910G1 ECM composition 0x110b
	usb: host: xhci-plat: add a shutdown
	USB: serial: pl2303: add device-id for HP LD381
	usb: xhci: apply XHCI_SUSPEND_DELAY to AMD XHCI controller 1022:145c
	ALSA: line6: Fix endless MIDI read loop
	ALSA: seq: virmidi: Fix running status after receiving sysex
	ALSA: seq: oss: Fix running status after receiving sysex
	ALSA: pcm: oss: Avoid plugin buffer overflow
	ALSA: pcm: oss: Remove WARNING from snd_pcm_plug_alloc() checks
	iio: st_sensors: remap SMO8840 to LIS2DH12
	iio: trigger: stm32-timer: disable master mode when stopping
	iio: magnetometer: ak8974: Fix negative raw values in sysfs
	iio: adc: at91-sama5d2_adc: fix differential channels in triggered mode
	mmc: rtsx_pci: Fix support for speed-modes that relies on tuning
	mmc: sdhci-of-at91: fix cd-gpios for SAMA5D2
	staging: rtl8188eu: Add device id for MERCUSYS MW150US v2
	staging: greybus: loopback_test: fix poll-mask build breakage
	staging/speakup: fix get_word non-space look-ahead
	intel_th: Fix user-visible error codes
	intel_th: pci: Add Elkhart Lake CPU support
	rtc: max8907: add missing select REGMAP_IRQ
	xhci: Do not open code __print_symbolic() in xhci trace events
	btrfs: fix log context list corruption after rename whiteout error
	drm/amd/amdgpu: Fix GPR read from debugfs (v2)
	drm/lease: fix WARNING in idr_destroy
	memcg: fix NULL pointer dereference in __mem_cgroup_usage_unregister_event
	mm: slub: be more careful about the double cmpxchg of freelist
	mm, slub: prevent kmalloc_node crashes and memory leaks
	page-flags: fix a crash at SetPageError(THP_SWAP)
	x86/mm: split vmalloc_sync_all()
	USB: cdc-acm: fix close_delay and closing_wait units in TIOCSSERIAL
	USB: cdc-acm: fix rounding error in TIOCSSERIAL
	iio: light: vcnl4000: update sampling periods for vcnl4200
	kbuild: Disable -Wpointer-to-enum-cast
	futex: Fix inode life-time issue
	futex: Unbreak futex hashing
	Revert "vrf: mark skb for multicast or link-local as enslaved to VRF"
	Revert "ipv6: Fix handling of LLA with VRF and sockets bound to VRF"
	ALSA: hda/realtek: Fix pop noise on ALC225
	arm64: smp: fix smp_send_stop() behaviour
	arm64: smp: fix crash_smp_send_stop() behaviour
	drm/bridge: dw-hdmi: fix AVI frame colorimetry
	staging: greybus: loopback_test: fix potential path truncation
	staging: greybus: loopback_test: fix potential path truncations
	Linux 4.19.113

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I90c48cd7189a964e59d199ecc0f32c0a68688ec5
2020-03-25 09:50:38 +01:00
Carlo Nonato
3cbfc33d43 block, bfq: fix overwrite of bfq_group pointer in bfq_find_set_group()
[ Upstream commit 14afc59361976c0ba39e3a9589c3eaa43ebc7e1d ]

The bfq_find_set_group() function takes as input a blkcg (which represents
a cgroup) and retrieves the corresponding bfq_group, then it updates the
bfq internal group hierarchy (see comments inside the function for why
this is needed) and finally it returns the bfq_group.
In the hierarchy update cycle, the pointer holding the correct bfq_group
that has to be returned is mistakenly used to traverse the hierarchy
bottom to top, meaning that in each iteration it gets overwritten with the
parent of the current group. Since the update cycle stops at root's
children (depth = 2), the overwrite becomes a problem only if the blkcg
describes a cgroup at a hierarchy level deeper than that (depth > 2). In
this case the root's child that happens to be also an ancestor of the
correct bfq_group is returned. The main consequence is that processes
contained in a cgroup at depth greater than 2 are wrongly placed in the
group described above by BFQ.

This commits fixes this problem by using a different bfq_group pointer in
the update cycle in order to avoid the overwrite of the variable holding
the original group reference.

Reported-by: Kwon Je Oh <kwonje.oh2@gmail.com>
Signed-off-by: Carlo Nonato <carlo.nonato95@gmail.com>
Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-03-25 08:06:08 +01:00
Barani Muthukumaran
66b3c81270 ANDROID: block: Prevent crypto fallback for wrapped keys
blk-crypto-fallback does not support wrapped keys, hence
prevent falling back when program_key fails. Add 'is_hw_wrapped'
flag to blk-crypto-key to mention if the key is wrapped
when the key is initialized.

Bug: 147209885

Test: Validate FBE, simulate a failure in the underlying blk
      device and ensure the call fails without falling back
      to blk-crypto-fallback.

Change-Id: I8bc301ca1ac9e55ba6ab622e8325486916b45c56
Signed-off-by: Barani Muthukumaran <bmuthuku@codeaurora.org>
2020-02-27 17:09:12 +00:00
Eric Biggers
582a710ae9 ANDROID: ufs, block: fix crypto power management and move into block layer
The call to pm_runtime_get_sync() in ufshcd_program_key() can deadlock
because it waits for the UFS controller to be resumed, but it can itself
be reached while resuming the UFS controller via:

- ufshcd_runtime_resume()
  - ufshcd_resume()
    - ufshcd_reset_and_restore()
      - ufshcd_host_reset_and_restore()
        - ufshcd_hba_enable()
          - ufshcd_hba_execute_hce()
            - ufshcd_hba_start()
              - ufshcd_crypto_enable()
                - keyslot_manager_reprogram_all_keys()
                  - ufshcd_crypto_keyslot_program()
                    - ufshcd_program_key()

But pm_runtime_get_sync() *is* needed when evicting a key.  Also, on
pre-4.20 kernels it's needed when programming a keyslot for a bio since
the block layer used to resume the device in a different place.

Thus, it's hard for drivers to know what to do in .keyslot_program() and
.keyslot_evict().  In old kernels it may even be impossible unless we
were to pass more information down from the keyslot_manager.

There's also another possible deadlock: keyslot programming and eviction
take ksm->lock for write and then resume the device, which may result in
ksm->lock being taken again via the above call stack.  To fix this, we
should resume the device before taking ksm->lock.

Fix these problems by moving to a better design where the block layer
(namely, the keyslot manager) handles runtime power management instead
of drivers.  This is analogous to the block layer's existing runtime
power management support (blk-pm), which handles resuming devices when
bios are submitted to them so that drivers don't need to handle it.

Test: Tested on coral with:
        echo 5 > /sys/bus/platform/devices/1d84000.ufshc/rpm_lvl
        sleep 30
        touch /data && sync  # hangs before this fix
  Also verified via kvm-xfstests that blk-crypto-fallback continues
  to work both with and without CONFIG_PM=y.

Bug: 137270441
Bug: 149368295
Change-Id: I6bc9fb81854afe7edf490d71796ee68a61f7cbc8
Signed-off-by: Eric Biggers <ebiggers@google.com>
2020-02-21 16:00:33 +00:00
Greg Kroah-Hartman
1b44c9bd91 This is the 4.19.101 stable release
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Merge 4.19.101 into android-4.19

Changes in 4.19.101
	orinoco_usb: fix interface sanity check
	rsi_91x_usb: fix interface sanity check
	usb: dwc3: pci: add ID for the Intel Comet Lake -V variant
	USB: serial: ir-usb: add missing endpoint sanity check
	USB: serial: ir-usb: fix link-speed handling
	USB: serial: ir-usb: fix IrLAP framing
	usb: dwc3: turn off VBUS when leaving host mode
	staging: most: net: fix buffer overflow
	staging: wlan-ng: ensure error return is actually returned
	staging: vt6656: correct packet types for CTS protect, mode.
	staging: vt6656: use NULLFUCTION stack on mac80211
	staging: vt6656: Fix false Tx excessive retries reporting.
	serial: 8250_bcm2835aux: Fix line mismatch on driver unbind
	component: do not dereference opaque pointer in debugfs
	mei: me: add comet point (lake) H device ids
	iio: st_gyro: Correct data for LSM9DS0 gyro
	crypto: chelsio - fix writing tfm flags to wrong place
	cifs: Fix memory allocation in __smb2_handle_cancelled_cmd()
	ath9k: fix storage endpoint lookup
	brcmfmac: fix interface sanity check
	rtl8xxxu: fix interface sanity check
	zd1211rw: fix storage endpoint lookup
	net_sched: ematch: reject invalid TCF_EM_SIMPLE
	net_sched: fix ops->bind_class() implementations
	HID: multitouch: Add LG MELF0410 I2C touchscreen support
	arc: eznps: fix allmodconfig kconfig warning
	HID: Add quirk for Xin-Mo Dual Controller
	HID: ite: Add USB id match for Acer SW5-012 keyboard dock
	HID: Add quirk for incorrect input length on Lenovo Y720
	drivers/hid/hid-multitouch.c: fix a possible null pointer access.
	phy: qcom-qmp: Increase PHY ready timeout
	phy: cpcap-usb: Prevent USB line glitches from waking up modem
	watchdog: max77620_wdt: fix potential build errors
	watchdog: rn5t618_wdt: fix module aliases
	spi: spi-dw: Add lock protect dw_spi rx/tx to prevent concurrent calls
	drivers/net/b44: Change to non-atomic bit operations on pwol_mask
	net: wan: sdla: Fix cast from pointer to integer of different size
	gpio: max77620: Add missing dependency on GPIOLIB_IRQCHIP
	atm: eni: fix uninitialized variable warning
	HID: steam: Fix input device disappearing
	platform/x86: dell-laptop: disable kbd backlight on Inspiron 10xx
	PCI: Add DMA alias quirk for Intel VCA NTB
	iommu/amd: Support multiple PCI DMA aliases in IRQ Remapping
	ARM: OMAP2+: SmartReflex: add omap_sr_pdata definition
	usb-storage: Disable UAS on JMicron SATA enclosure
	sched/fair: Add tmp_alone_branch assertion
	sched/fair: Fix insertion in rq->leaf_cfs_rq_list
	rsi: fix use-after-free on probe errors
	rsi: fix memory leak on failed URB submission
	rsi: fix non-atomic allocation in completion handler
	crypto: af_alg - Use bh_lock_sock in sk_destruct
	random: try to actively add entropy rather than passively wait for it
	block: cleanup __blkdev_issue_discard()
	block: fix 32 bit overflow in __blkdev_issue_discard()
	KVM: arm64: Write arch.mdcr_el2 changes since last vcpu_load on VHE
	Linux 4.19.101

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I801cd8d04eea35b4b53957cc69c0987d88094992
2020-02-02 20:22:38 +00:00
Dave Chinner
f387897cf5 block: fix 32 bit overflow in __blkdev_issue_discard()
commit 4800bf7bc8c725e955fcbc6191cc872f43f506d3 upstream.

A discard cleanup merged into 4.20-rc2 causes fstests xfs/259 to
fall into an endless loop in the discard code. The test is creating
a device that is exactly 2^32 sectors in size to test mkfs boundary
conditions around the 32 bit sector overflow region.

mkfs issues a discard for the entire device size by default, and
hence this throws a sector count of 2^32 into
blkdev_issue_discard(). It takes the number of sectors to discard as
a sector_t - a 64 bit value.

The commit ba5d73851e71 ("block: cleanup __blkdev_issue_discard")
takes this sector count and casts it to a 32 bit value before
comapring it against the maximum allowed discard size the device
has. This truncates away the upper 32 bits, and so if the lower 32
bits of the sector count is zero, it starts issuing discards of
length 0. This causes the code to fall into an endless loop, issuing
a zero length discards over and over again on the same sector.

Fixes: ba5d73851e71 ("block: cleanup __blkdev_issue_discard")
Tested-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Dave Chinner <dchinner@redhat.com>

Killed pointless WARN_ON().

Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-01 09:37:12 +00:00
Ming Lei
b0be61a5a5 block: cleanup __blkdev_issue_discard()
commit ba5d73851e71847ba7f7f4c27a1a6e1f5ab91c79 upstream.

Cleanup __blkdev_issue_discard() a bit:

- remove local variable of 'end_sect'
- remove code block of 'fail'

Cc: Mike Snitzer <snitzer@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Xiao Ni <xni@redhat.com>
Cc: Mariusz Dabrowski <mariusz.dabrowski@intel.com>
Tested-by: Rui Salvaterra <rsalvaterra@gmail.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-01 09:37:12 +00:00
Ram Muthiah
75c7e67b17 ANDROID: modularize BLK_MQ_VIRTIO
Bug: 139431025
Test: Treehugger
Change-Id: Iba414b03a9ee1544036c4153bf52e8c8edbb9c17
Signed-off-by: Ram Muthiah <rammuthiah@google.com>
(cherry picked from commit f1bdff93debe56dbafc0684fcfbfcaddd599be7b)
2020-01-31 16:11:59 -08:00
Greg Kroah-Hartman
1fca2c99f4 This is the 4.19.99 stable release
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Merge 4.19.99 into android-4.19

Changes in 4.19.99
	Revert "efi: Fix debugobjects warning on 'efi_rts_work'"
	xfs: Sanity check flags of Q_XQUOTARM call
	i2c: stm32f7: rework slave_id allocation
	i2c: i2c-stm32f7: fix 10-bits check in slave free id search loop
	mfd: intel-lpss: Add default I2C device properties for Gemini Lake
	SUNRPC: Fix svcauth_gss_proxy_init()
	powerpc/pseries: Enable support for ibm,drc-info property
	powerpc/archrandom: fix arch_get_random_seed_int()
	tipc: update mon's self addr when node addr generated
	tipc: fix wrong timeout input for tipc_wait_for_cond()
	mt7601u: fix bbp version check in mt7601u_wait_bbp_ready
	crypto: sun4i-ss - fix big endian issues
	perf map: No need to adjust the long name of modules
	soc: aspeed: Fix snoop_file_poll()'s return type
	watchdog: sprd: Fix the incorrect pointer getting from driver data
	ipmi: Fix memory leak in __ipmi_bmc_register
	drm/sti: do not remove the drm_bridge that was never added
	ARM: dts: at91: nattis: set the PRLUD and HIPOW signals low
	ARM: dts: at91: nattis: make the SD-card slot work
	ixgbe: don't clear IPsec sa counters on HW clearing
	drm/virtio: fix bounds check in virtio_gpu_cmd_get_capset()
	iio: fix position relative kernel version
	apparmor: Fix network performance issue in aa_label_sk_perm
	ALSA: hda: fix unused variable warning
	apparmor: don't try to replace stale label in ptrace access check
	ARM: qcom_defconfig: Enable MAILBOX
	firmware: coreboot: Let OF core populate platform device
	PCI: iproc: Remove PAXC slot check to allow VF support
	bridge: br_arp_nd_proxy: set icmp6_router if neigh has NTF_ROUTER
	drm/hisilicon: hibmc: Don't overwrite fb helper surface depth
	signal/ia64: Use the generic force_sigsegv in setup_frame
	signal/ia64: Use the force_sig(SIGSEGV,...) in ia64_rt_sigreturn
	ASoC: wm9712: fix unused variable warning
	mailbox: mediatek: Add check for possible failure of kzalloc
	IB/rxe: replace kvfree with vfree
	IB/hfi1: Add mtu check for operational data VLs
	genirq/debugfs: Reinstate full OF path for domain name
	usb: dwc3: add EXTCON dependency for qcom
	usb: gadget: fsl_udc_core: check allocation return value and cleanup on failure
	cfg80211: regulatory: make initialization more robust
	mei: replace POLL* with EPOLL* for write queues.
	drm/msm: fix unsigned comparison with less than zero
	of: Fix property name in of_node_get_device_type
	ALSA: usb-audio: update quirk for B&W PX to remove microphone
	iwlwifi: nvm: get num of hw addresses from firmware
	staging: comedi: ni_mio_common: protect register write overflow
	netfilter: nft_osf: usage from output path is not valid
	pwm: lpss: Release runtime-pm reference from the driver's remove callback
	powerpc/pseries/memory-hotplug: Fix return value type of find_aa_index
	rtlwifi: rtl8821ae: replace _rtl8821ae_mrate_idx_to_arfr_id with generic version
	RDMA/bnxt_re: Add missing spin lock initialization
	netfilter: nf_flow_table: do not remove offload when other netns's interface is down
	powerpc/kgdb: add kgdb_arch_set/remove_breakpoint()
	tipc: eliminate message disordering during binding table update
	net: socionext: Add dummy PHY register read in phy_write()
	drm/sun4i: hdmi: Fix double flag assignation
	net: hns3: add error handler for hns3_nic_init_vector_data()
	mlxsw: reg: QEEC: Add minimum shaper fields
	mlxsw: spectrum: Set minimum shaper on MC TCs
	NTB: ntb_hw_idt: replace IS_ERR_OR_NULL with regular NULL checks
	ASoC: wm97xx: fix uninitialized regmap pointer problem
	ARM: dts: bcm283x: Correct mailbox register sizes
	pcrypt: use format specifier in kobject_add
	ASoC: sun8i-codec: add missing route for ADC
	pinctrl: meson-gxl: remove invalid GPIOX tsin_a pins
	bus: ti-sysc: Add mcasp optional clocks flag
	exportfs: fix 'passing zero to ERR_PTR()' warning
	drm: rcar-du: Fix the return value in case of error in 'rcar_du_crtc_set_crc_source()'
	drm: rcar-du: Fix vblank initialization
	net: always initialize pagedlen
	drm/dp_mst: Skip validating ports during destruction, just ref
	arm64: dts: meson-gx: Add hdmi_5v regulator as hdmi tx supply
	arm64: dts: renesas: r8a7795-es1: Add missing power domains to IPMMU nodes
	net: phy: Fix not to call phy_resume() if PHY is not attached
	IB/hfi1: Correctly process FECN and BECN in packets
	OPP: Fix missing debugfs supply directory for OPPs
	IB/rxe: Fix incorrect cache cleanup in error flow
	mailbox: ti-msgmgr: Off by one in ti_msgmgr_of_xlate()
	staging: bcm2835-camera: Abort probe if there is no camera
	staging: bcm2835-camera: fix module autoloading
	switchtec: Remove immediate status check after submitting MRPC command
	ipv6: add missing tx timestamping on IPPROTO_RAW
	pinctrl: sh-pfc: r8a7740: Add missing REF125CK pin to gether_gmii group
	pinctrl: sh-pfc: r8a7740: Add missing LCD0 marks to lcd0_data24_1 group
	pinctrl: sh-pfc: r8a7791: Remove bogus ctrl marks from qspi_data4_b group
	pinctrl: sh-pfc: r8a7791: Remove bogus marks from vin1_b_data18 group
	pinctrl: sh-pfc: sh73a0: Add missing TO pin to tpu4_to3 group
	pinctrl: sh-pfc: r8a7794: Remove bogus IPSR9 field
	pinctrl: sh-pfc: r8a77970: Add missing MOD_SEL0 field
	pinctrl: sh-pfc: r8a77980: Add missing MOD_SEL0 field
	pinctrl: sh-pfc: sh7734: Add missing IPSR11 field
	pinctrl: sh-pfc: r8a77995: Remove bogus SEL_PWM[0-3]_3 configurations
	pinctrl: sh-pfc: sh7269: Add missing PCIOR0 field
	pinctrl: sh-pfc: sh7734: Remove bogus IPSR10 value
	net: hns3: fix error handling int the hns3_get_vector_ring_chain
	vxlan: changelink: Fix handling of default remotes
	Input: nomadik-ske-keypad - fix a loop timeout test
	fork,memcg: fix crash in free_thread_stack on memcg charge fail
	clk: highbank: fix refcount leak in hb_clk_init()
	clk: qoriq: fix refcount leak in clockgen_init()
	clk: ti: fix refcount leak in ti_dt_clocks_register()
	clk: socfpga: fix refcount leak
	clk: samsung: exynos4: fix refcount leak in exynos4_get_xom()
	clk: imx6q: fix refcount leak in imx6q_clocks_init()
	clk: imx6sx: fix refcount leak in imx6sx_clocks_init()
	clk: imx7d: fix refcount leak in imx7d_clocks_init()
	clk: vf610: fix refcount leak in vf610_clocks_init()
	clk: armada-370: fix refcount leak in a370_clk_init()
	clk: kirkwood: fix refcount leak in kirkwood_clk_init()
	clk: armada-xp: fix refcount leak in axp_clk_init()
	clk: mv98dx3236: fix refcount leak in mv98dx3236_clk_init()
	clk: dove: fix refcount leak in dove_clk_init()
	MIPS: BCM63XX: drop unused and broken DSP platform device
	arm64: defconfig: Re-enable bcm2835-thermal driver
	remoteproc: qcom: q6v5-mss: Add missing clocks for MSM8996
	remoteproc: qcom: q6v5-mss: Add missing regulator for MSM8996
	drm: Fix error handling in drm_legacy_addctx
	ARM: dts: r8a7743: Remove generic compatible string from iic3
	drm/etnaviv: fix some off by one bugs
	drm/fb-helper: generic: Fix setup error path
	fork, memcg: fix cached_stacks case
	IB/usnic: Fix out of bounds index check in query pkey
	RDMA/ocrdma: Fix out of bounds index check in query pkey
	RDMA/qedr: Fix out of bounds index check in query pkey
	drm/shmob: Fix return value check in shmob_drm_probe
	arm64: dts: apq8016-sbc: Increase load on l11 for SDCARD
	spi: cadence: Correct initialisation of runtime PM
	RDMA/iw_cxgb4: Fix the unchecked ep dereference
	net: phy: micrel: set soft_reset callback to genphy_soft_reset for KSZ9031
	memory: tegra: Don't invoke Tegra30+ specific memory timing setup on Tegra20
	drm/etnaviv: NULL vs IS_ERR() buf in etnaviv_core_dump()
	media: s5p-jpeg: Correct step and max values for V4L2_CID_JPEG_RESTART_INTERVAL
	kbuild: mark prepare0 as PHONY to fix external module build
	crypto: brcm - Fix some set-but-not-used warning
	crypto: tgr192 - fix unaligned memory access
	ASoC: imx-sgtl5000: put of nodes if finding codec fails
	IB/iser: Pass the correct number of entries for dma mapped SGL
	net: hns3: fix wrong combined count returned by ethtool -l
	media: tw9910: Unregister subdevice with v4l2-async
	IB/mlx5: Don't override existing ip_protocol
	rtc: cmos: ignore bogus century byte
	spi/topcliff_pch: Fix potential NULL dereference on allocation error
	net: hns3: fix bug of ethtool_ops.get_channels for VF
	ARM: dts: sun8i-a23-a33: Move NAND controller device node to sort by address
	clk: sunxi-ng: sun8i-a23: Enable PLL-MIPI LDOs when ungating it
	iwlwifi: mvm: avoid possible access out of array.
	net/mlx5: Take lock with IRQs disabled to avoid deadlock
	ip_tunnel: Fix route fl4 init in ip_md_tunnel_xmit
	arm64: dts: allwinner: h6: Move GIC device node fix base address ordering
	iwlwifi: mvm: fix A-MPDU reference assignment
	bus: ti-sysc: Fix timer handling with drop pm_runtime_irq_safe()
	tty: ipwireless: Fix potential NULL pointer dereference
	driver: uio: fix possible memory leak in __uio_register_device
	driver: uio: fix possible use-after-free in __uio_register_device
	crypto: crypto4xx - Fix wrong ppc4xx_trng_probe()/ppc4xx_trng_remove() arguments
	driver core: Fix DL_FLAG_AUTOREMOVE_SUPPLIER device link flag handling
	driver core: Avoid careless re-use of existing device links
	driver core: Do not resume suppliers under device_links_write_lock()
	driver core: Fix handling of runtime PM flags in device_link_add()
	driver core: Do not call rpm_put_suppliers() in pm_runtime_drop_link()
	ARM: dts: lpc32xx: add required clocks property to keypad device node
	ARM: dts: lpc32xx: reparent keypad controller to SIC1
	ARM: dts: lpc32xx: fix ARM PrimeCell LCD controller variant
	ARM: dts: lpc32xx: fix ARM PrimeCell LCD controller clocks property
	ARM: dts: lpc32xx: phy3250: fix SD card regulator voltage
	drm/xen-front: Fix mmap attributes for display buffers
	iwlwifi: mvm: fix RSS config command
	staging: most: cdev: add missing check for cdev_add failure
	clk: ingenic: jz4740: Fix gating of UDC clock
	rtc: ds1672: fix unintended sign extension
	thermal: mediatek: fix register index error
	arm64: dts: msm8916: remove bogus argument to the cpu clock
	ath10k: fix dma unmap direction for management frames
	net: phy: fixed_phy: Fix fixed_phy not checking GPIO
	rtc: ds1307: rx8130: Fix alarm handling
	net/smc: original socket family in inet_sock_diag
	rtc: 88pm860x: fix unintended sign extension
	rtc: 88pm80x: fix unintended sign extension
	rtc: pm8xxx: fix unintended sign extension
	fbdev: chipsfb: remove set but not used variable 'size'
	iw_cxgb4: use tos when importing the endpoint
	iw_cxgb4: use tos when finding ipv6 routes
	ipmi: kcs_bmc: handle devm_kasprintf() failure case
	xsk: add missing smp_rmb() in xsk_mmap
	drm/etnaviv: potential NULL dereference
	ntb_hw_switchtec: debug print 64bit aligned crosslink BAR Numbers
	ntb_hw_switchtec: NT req id mapping table register entry number should be 512
	pinctrl: sh-pfc: emev2: Add missing pinmux functions
	pinctrl: sh-pfc: r8a7791: Fix scifb2_data_c pin group
	pinctrl: sh-pfc: r8a7792: Fix vin1_data18_b pin group
	pinctrl: sh-pfc: sh73a0: Fix fsic_spdif pin groups
	RDMA/mlx5: Fix memory leak in case we fail to add an IB device
	driver core: Fix possible supplier PM-usage counter imbalance
	PCI: endpoint: functions: Use memcpy_fromio()/memcpy_toio()
	usb: phy: twl6030-usb: fix possible use-after-free on remove
	block: don't use bio->bi_vcnt to figure out segment number
	keys: Timestamp new keys
	net: dsa: b53: Fix default VLAN ID
	net: dsa: b53: Properly account for VLAN filtering
	net: dsa: b53: Do not program CPU port's PVID
	mt76: usb: fix possible memory leak in mt76u_buf_free
	media: sh: migor: Include missing dma-mapping header
	vfio_pci: Enable memory accesses before calling pci_map_rom
	hwmon: (pmbus/tps53679) Fix driver info initialization in probe routine
	mdio_bus: Fix PTR_ERR() usage after initialization to constant
	KVM: PPC: Release all hardware TCE tables attached to a group
	staging: r8822be: check kzalloc return or bail
	dmaengine: mv_xor: Use correct device for DMA API
	cdc-wdm: pass return value of recover_from_urb_loss
	brcmfmac: create debugfs files for bus-specific layer
	regulator: pv88060: Fix array out-of-bounds access
	regulator: pv88080: Fix array out-of-bounds access
	regulator: pv88090: Fix array out-of-bounds access
	net: dsa: qca8k: Enable delay for RGMII_ID mode
	net/mlx5: Delete unused FPGA QPN variable
	drm/nouveau/bios/ramcfg: fix missing parentheses when calculating RON
	drm/nouveau/pmu: don't print reply values if exec is false
	drm/nouveau: fix missing break in switch statement
	driver core: Fix PM-runtime for links added during consumer probe
	ASoC: qcom: Fix of-node refcount unbalance in apq8016_sbc_parse_of()
	net: dsa: fix unintended change of bridge interface STP state
	fs/nfs: Fix nfs_parse_devname to not modify it's argument
	staging: rtlwifi: Use proper enum for return in halmac_parse_psd_data_88xx
	powerpc/64s: Fix logic when handling unknown CPU features
	NFS: Fix a soft lockup in the delegation recovery code
	perf: Copy parent's address filter offsets on clone
	perf, pt, coresight: Fix address filters for vmas with non-zero offset
	clocksource/drivers/sun5i: Fail gracefully when clock rate is unavailable
	clocksource/drivers/exynos_mct: Fix error path in timer resources initialization
	platform/x86: wmi: fix potential null pointer dereference
	NFS/pnfs: Bulk destroy of layouts needs to be safe w.r.t. umount
	mmc: sdhci-brcmstb: handle mmc_of_parse() errors during probe
	iommu: Fix IOMMU debugfs fallout
	ARM: 8847/1: pm: fix HYP/SVC mode mismatch when MCPM is used
	ARM: 8848/1: virt: Align GIC version check with arm64 counterpart
	ARM: 8849/1: NOMMU: Fix encodings for PMSAv8's PRBAR4/PRLAR4
	regulator: wm831x-dcdc: Fix list of wm831x_dcdc_ilim from mA to uA
	ath10k: Fix length of wmi tlv command for protected mgmt frames
	netfilter: nft_set_hash: fix lookups with fixed size hash on big endian
	netfilter: nft_set_hash: bogus element self comparison from deactivation path
	net: sched: act_csum: Fix csum calc for tagged packets
	hwrng: bcm2835 - fix probe as platform device
	iommu/vt-d: Fix NULL pointer reference in intel_svm_bind_mm()
	NFS: Add missing encode / decode sequence_maxsz to v4.2 operations
	NFSv4/flexfiles: Fix invalid deref in FF_LAYOUT_DEVID_NODE()
	net: aquantia: fixed instack structure overflow
	powerpc/mm: Check secondary hash page table
	media: dvb/earth-pt1: fix wrong initialization for demod blocks
	rbd: clear ->xferred on error from rbd_obj_issue_copyup()
	PCI: Fix "try" semantics of bus and slot reset
	nios2: ksyms: Add missing symbol exports
	x86/mm: Remove unused variable 'cpu'
	scsi: megaraid_sas: reduce module load time
	nfp: fix simple vNIC mailbox length
	drivers/rapidio/rio_cm.c: fix potential oops in riocm_ch_listen()
	xen, cpu_hotplug: Prevent an out of bounds access
	net/mlx5: Fix multiple updates of steering rules in parallel
	net/mlx5e: IPoIB, Fix RX checksum statistics update
	net: sh_eth: fix a missing check of of_get_phy_mode
	regulator: lp87565: Fix missing register for LP87565_BUCK_0
	soc: amlogic: gx-socinfo: Add mask for each SoC packages
	media: ivtv: update *pos correctly in ivtv_read_pos()
	media: cx18: update *pos correctly in cx18_read_pos()
	media: wl128x: Fix an error code in fm_download_firmware()
	media: cx23885: check allocation return
	regulator: tps65086: Fix tps65086_ldoa1_ranges for selector 0xB
	crypto: ccree - reduce kernel stack usage with clang
	jfs: fix bogus variable self-initialization
	tipc: tipc clang warning
	m68k: mac: Fix VIA timer counter accesses
	ARM: dts: sun8i: a33: Reintroduce default pinctrl muxing
	arm64: dts: allwinner: a64: Add missing PIO clocks
	ARM: dts: sun9i: optimus: Fix fixed-regulators
	net: phy: don't clear BMCR in genphy_soft_reset
	ARM: OMAP2+: Fix potentially uninitialized return value for _setup_reset()
	net: dsa: Avoid null pointer when failing to connect to PHY
	soc: qcom: cmd-db: Fix an error code in cmd_db_dev_probe()
	media: davinci-isif: avoid uninitialized variable use
	media: tw5864: Fix possible NULL pointer dereference in tw5864_handle_frame
	spi: tegra114: clear packed bit for unpacked mode
	spi: tegra114: fix for unpacked mode transfers
	spi: tegra114: terminate dma and reset on transfer timeout
	spi: tegra114: flush fifos
	spi: tegra114: configure dma burst size to fifo trig level
	bus: ti-sysc: Fix sysc_unprepare() when no clocks have been allocated
	soc/fsl/qe: Fix an error code in qe_pin_request()
	spi: bcm2835aux: fix driver to not allow 65535 (=-1) cs-gpios
	drm/fb-helper: generic: Call drm_client_add() after setup is done
	arm64/vdso: don't leak kernel addresses
	rtc: Fix timestamp value for RTC_TIMESTAMP_BEGIN_1900
	rtc: mt6397: Don't call irq_dispose_mapping.
	ehea: Fix a copy-paste err in ehea_init_port_res
	bpf: Add missed newline in verifier verbose log
	drm/vmwgfx: Remove set but not used variable 'restart'
	scsi: qla2xxx: Unregister chrdev if module initialization fails
	of: use correct function prototype for of_overlay_fdt_apply()
	net/sched: cbs: fix port_rate miscalculation
	clk: qcom: Skip halt checks on gcc_pcie_0_pipe_clk for 8998
	ACPI: button: reinitialize button state upon resume
	firmware: arm_scmi: fix of_node leak in scmi_mailbox_check
	rxrpc: Fix detection of out of order acks
	scsi: target/core: Fix a race condition in the LUN lookup code
	brcmfmac: fix leak of mypkt on error return path
	ARM: pxa: ssp: Fix "WARNING: invalid free of devm_ allocated data"
	PCI: rockchip: Fix rockchip_pcie_ep_assert_intx() bitwise operations
	net: hns3: fix for vport->bw_limit overflow problem
	hwmon: (w83627hf) Use request_muxed_region for Super-IO accesses
	perf/core: Fix the address filtering fix
	staging: android: vsoc: fix copy_from_user overrun
	PCI: dwc: Fix dw_pcie_ep_find_capability() to return correct capability offset
	soc: amlogic: meson-gx-pwrc-vpu: Fix power on/off register bitmask
	platform/x86: alienware-wmi: fix kfree on potentially uninitialized pointer
	tipc: set sysctl_tipc_rmem and named_timeout right range
	usb: typec: tcpm: Notify the tcpc to start connection-detection for SRPs
	selftests/ipc: Fix msgque compiler warnings
	net: hns3: fix loop condition of hns3_get_tx_timeo_queue_info()
	powerpc: vdso: Make vdso32 installation conditional in vdso_install
	ARM: dts: ls1021: Fix SGMII PCS link remaining down after PHY disconnect
	media: ov2659: fix unbalanced mutex_lock/unlock
	6lowpan: Off by one handling ->nexthdr
	dmaengine: axi-dmac: Don't check the number of frames for alignment
	ALSA: usb-audio: Handle the error from snd_usb_mixer_apply_create_quirk()
	afs: Fix AFS file locking to allow fine grained locks
	afs: Further fix file locking
	NFS: Don't interrupt file writeout due to fatal errors
	coresight: catu: fix clang build warning
	s390/kexec_file: Fix potential segment overlap in ELF loader
	irqchip/gic-v3-its: fix some definitions of inner cacheability attributes
	scsi: qla2xxx: Fix a format specifier
	scsi: qla2xxx: Fix error handling in qlt_alloc_qfull_cmd()
	scsi: qla2xxx: Avoid that qlt_send_resp_ctio() corrupts memory
	KVM: PPC: Book3S HV: Fix lockdep warning when entering the guest
	netfilter: nft_flow_offload: add entry to flowtable after confirmation
	PCI: iproc: Enable iProc config read for PAXBv2
	ARM: dts: logicpd-som-lv: Fix MMC1 card detect
	packet: in recvmsg msg_name return at least sizeof sockaddr_ll
	ASoC: fix valid stream condition
	usb: gadget: fsl: fix link error against usb-gadget module
	dwc2: gadget: Fix completed transfer size calculation in DDMA
	IB/mlx5: Add missing XRC options to QP optional params mask
	RDMA/rxe: Consider skb reserve space based on netdev of GID
	iommu/vt-d: Make kernel parameter igfx_off work with vIOMMU
	net: ena: fix swapped parameters when calling ena_com_indirect_table_fill_entry
	net: ena: fix: Free napi resources when ena_up() fails
	net: ena: fix incorrect test of supported hash function
	net: ena: fix ena_com_fill_hash_function() implementation
	dmaengine: tegra210-adma: restore channel status
	watchdog: rtd119x_wdt: Fix remove function
	mmc: core: fix possible use after free of host
	lightnvm: pblk: fix lock order in pblk_rb_tear_down_check
	ath10k: Fix encoding for protected management frames
	afs: Fix the afs.cell and afs.volume xattr handlers
	vfio/mdev: Avoid release parent reference during error path
	vfio/mdev: Follow correct remove sequence
	vfio/mdev: Fix aborting mdev child device removal if one fails
	l2tp: Fix possible NULL pointer dereference
	ALSA: aica: Fix a long-time build breakage
	media: omap_vout: potential buffer overflow in vidioc_dqbuf()
	media: davinci/vpbe: array underflow in vpbe_enum_outputs()
	platform/x86: alienware-wmi: printing the wrong error code
	crypto: caam - fix caam_dump_sg that iterates through scatterlist
	netfilter: ebtables: CONFIG_COMPAT: reject trailing data after last rule
	pwm: meson: Consider 128 a valid pre-divider
	pwm: meson: Don't disable PWM when setting duty repeatedly
	ARM: riscpc: fix lack of keyboard interrupts after irq conversion
	nfp: bpf: fix static check error through tightening shift amount adjustment
	kdb: do a sanity check on the cpu in kdb_per_cpu()
	netfilter: nf_tables: correct NFT_LOGLEVEL_MAX value
	backlight: lm3630a: Return 0 on success in update_status functions
	thermal: rcar_gen3_thermal: fix interrupt type
	thermal: cpu_cooling: Actually trace CPU load in thermal_power_cpu_get_power
	EDAC/mc: Fix edac_mc_find() in case no device is found
	afs: Fix key leak in afs_release() and afs_evict_inode()
	afs: Don't invalidate callback if AFS_VNODE_DIR_VALID not set
	afs: Fix lock-wait/callback-break double locking
	afs: Fix double inc of vnode->cb_break
	ARM: dts: sun8i-h3: Fix wifi in Beelink X2 DT
	clk: meson: gxbb: no spread spectrum on mpll0
	clk: meson: axg: spread spectrum is on mpll2
	dmaengine: tegra210-adma: Fix crash during probe
	arm64: dts: meson: libretech-cc: set eMMC as removable
	RDMA/qedr: Fix incorrect device rate.
	spi: spi-fsl-spi: call spi_finalize_current_message() at the end
	crypto: ccp - fix AES CFB error exposed by new test vectors
	crypto: ccp - Fix 3DES complaint from ccp-crypto module
	serial: stm32: fix word length configuration
	serial: stm32: fix rx error handling
	serial: stm32: fix rx data length when parity enabled
	serial: stm32: fix transmit_chars when tx is stopped
	serial: stm32: Add support of TC bit status check
	serial: stm32: fix wakeup source initialization
	misc: sgi-xp: Properly initialize buf in xpc_get_rsvd_page_pa
	iommu: Add missing new line for dma type
	iommu: Use right function to get group for device
	signal/bpfilter: Fix bpfilter_kernl to use send_sig not force_sig
	signal/cifs: Fix cifs_put_tcp_session to call send_sig instead of force_sig
	inet: frags: call inet_frags_fini() after unregister_pernet_subsys()
	net: hns3: fix a memory leak issue for hclge_map_unmap_ring_to_vf_vector
	crypto: talitos - fix AEAD processing.
	netvsc: unshare skb in VF rx handler
	net: core: support XDP generic on stacked devices.
	RDMA/uverbs: check for allocation failure in uapi_add_elm()
	net: don't clear sock->sk early to avoid trouble in strparser
	phy: qcom-qusb2: fix missing assignment of ret when calling clk_prepare_enable
	cpufreq: brcmstb-avs-cpufreq: Fix initial command check
	cpufreq: brcmstb-avs-cpufreq: Fix types for voltage/frequency
	clk: sunxi-ng: sun50i-h6-r: Fix incorrect W1 clock gate register
	media: vivid: fix incorrect assignment operation when setting video mode
	crypto: inside-secure - fix zeroing of the request in ahash_exit_inv
	crypto: inside-secure - fix queued len computation
	arm64: dts: renesas: ebisu: Remove renesas, no-ether-link property
	mpls: fix warning with multi-label encap
	serial: stm32: fix a recursive locking in stm32_config_rs485
	arm64: dts: meson-gxm-khadas-vim2: fix gpio-keys-polled node
	arm64: dts: meson-gxm-khadas-vim2: fix Bluetooth support
	iommu/vt-d: Duplicate iommu_resv_region objects per device list
	phy: usb: phy-brcm-usb: Remove sysfs attributes upon driver removal
	firmware: arm_scmi: fix bitfield definitions for SENSOR_DESC attributes
	firmware: arm_scmi: update rate_discrete in clock_describe_rates_get
	ntb_hw_switchtec: potential shift wrapping bug in switchtec_ntb_init_sndev()
	ASoC: meson: axg-tdmin: right_j is not supported
	ASoC: meson: axg-tdmout: right_j is not supported
	qed: iWARP - Use READ_ONCE and smp_store_release to access ep->state
	qed: iWARP - fix uninitialized callback
	powerpc/cacheinfo: add cacheinfo_teardown, cacheinfo_rebuild
	powerpc/pseries/mobility: rebuild cacheinfo hierarchy post-migration
	bpf: fix the check that forwarding is enabled in bpf_ipv6_fib_lookup
	IB/hfi1: Handle port down properly in pio
	drm/msm/mdp5: Fix mdp5_cfg_init error return
	net: netem: fix backlog accounting for corrupted GSO frames
	net/udp_gso: Allow TX timestamp with UDP GSO
	net/af_iucv: build proper skbs for HiperTransport
	net/af_iucv: always register net_device notifier
	ASoC: ti: davinci-mcasp: Fix slot mask settings when using multiple AXRs
	rtc: pcf8563: Fix interrupt trigger method
	rtc: pcf8563: Clear event flags and disable interrupts before requesting irq
	ARM: dts: iwg20d-q7-common: Fix SDHI1 VccQ regularor
	net/sched: cbs: Fix error path of cbs_module_init
	arm64: dts: allwinner: h6: Pine H64: Add interrupt line for RTC
	drm/msm/a3xx: remove TPL1 regs from snapshot
	ip6_fib: Don't discard nodes with valid routing information in fib6_locate_1()
	perf/ioctl: Add check for the sample_period value
	dmaengine: hsu: Revert "set HSU_CH_MTSR to memory width"
	clk: qcom: Fix -Wunused-const-variable
	nvmem: imx-ocotp: Ensure WAIT bits are preserved when setting timing
	nvmem: imx-ocotp: Change TIMING calculation to u-boot algorithm
	tools: bpftool: use correct argument in cgroup errors
	backlight: pwm_bl: Fix heuristic to determine number of brightness levels
	fork,memcg: alloc_thread_stack_node needs to set tsk->stack
	bnxt_en: Fix ethtool selftest crash under error conditions.
	bnxt_en: Suppress error messages when querying DSCP DCB capabilities.
	iommu/amd: Make iommu_disable safer
	mfd: intel-lpss: Release IDA resources
	rxrpc: Fix uninitialized error code in rxrpc_send_data_packet()
	xprtrdma: Fix use-after-free in rpcrdma_post_recvs
	um: Fix IRQ controller regression on console read
	PM: ACPI/PCI: Resume all devices during hibernation
	ACPI: PM: Simplify and fix PM domain hibernation callbacks
	ACPI: PM: Introduce "poweroff" callbacks for ACPI PM domain and LPSS
	fsi/core: Fix error paths on CFAM init
	devres: allow const resource arguments
	fsi: sbefifo: Don't fail operations when in SBE IPL state
	RDMA/hns: Fixs hw access invalid dma memory error
	PCI: mobiveil: Remove the flag MSI_FLAG_MULTI_PCI_MSI
	PCI: mobiveil: Fix devfn check in mobiveil_pcie_valid_device()
	PCI: mobiveil: Fix the valid check for inbound and outbound windows
	ceph: fix "ceph.dir.rctime" vxattr value
	net: pasemi: fix an use-after-free in pasemi_mac_phy_init()
	net/tls: fix socket wmem accounting on fallback with netem
	x86/pgtable/32: Fix LOWMEM_PAGES constant
	xdp: fix possible cq entry leak
	ARM: stm32: use "depends on" instead of "if" after prompt
	scsi: libfc: fix null pointer dereference on a null lport
	xfrm interface: ifname may be wrong in logs
	drm/panel: make drm_panel.h self-contained
	clk: sunxi-ng: v3s: add the missing PLL_DDR1
	PM: sleep: Fix possible overflow in pm_system_cancel_wakeup()
	libertas_tf: Use correct channel range in lbtf_geo_init
	qed: reduce maximum stack frame size
	usb: host: xhci-hub: fix extra endianness conversion
	media: rcar-vin: Clean up correct notifier in error path
	mic: avoid statically declaring a 'struct device'.
	x86/kgbd: Use NMI_VECTOR not APIC_DM_NMI
	crypto: ccp - Reduce maximum stack usage
	ALSA: aoa: onyx: always initialize register read value
	arm64: dts: renesas: r8a77995: Fix register range of display node
	tipc: reduce risk of wakeup queue starvation
	ARM: dts: stm32: add missing vdda-supply to adc on stm32h743i-eval
	net/mlx5: Fix mlx5_ifc_query_lag_out_bits
	cifs: fix rmmod regression in cifs.ko caused by force_sig changes
	iio: tsl2772: Use devm_add_action_or_reset for tsl2772_chip_off
	net: fix bpf_xdp_adjust_head regression for generic-XDP
	spi: bcm-qspi: Fix BSPI QUAD and DUAL mode support when using flex mode
	cxgb4: smt: Add lock for atomic_dec_and_test
	crypto: caam - free resources in case caam_rng registration failed
	ext4: set error return correctly when ext4_htree_store_dirent fails
	RDMA/hns: Bugfix for slab-out-of-bounds when unloading hip08 driver
	RDMA/hns: bugfix for slab-out-of-bounds when loading hip08 driver
	ASoC: es8328: Fix copy-paste error in es8328_right_line_controls
	ASoC: cs4349: Use PM ops 'cs4349_runtime_pm'
	ASoC: wm8737: Fix copy-paste error in wm8737_snd_controls
	net/rds: Add a few missing rds_stat_names entries
	tools: bpftool: fix arguments for p_err() in do_event_pipe()
	tools: bpftool: fix format strings and arguments for jsonw_printf()
	drm: rcar-du: lvds: Fix bridge_to_rcar_lvds
	bnxt_en: Fix handling FRAG_ERR when NVM_INSTALL_UPDATE cmd fails
	signal: Allow cifs and drbd to receive their terminating signals
	powerpc/64s/radix: Fix memory hot-unplug page table split
	ASoC: sun4i-i2s: RX and TX counter registers are swapped
	dmaengine: dw: platform: Switch to acpi_dma_controller_register()
	rtc: rv3029: revert error handling patch to rv3029_eeprom_write()
	mac80211: minstrel_ht: fix per-group max throughput rate initialization
	i40e: reduce stack usage in i40e_set_fc
	media: atmel: atmel-isi: fix timeout value for stop streaming
	ARM: 8896/1: VDSO: Don't leak kernel addresses
	rtc: pcf2127: bugfix: read rtc disables watchdog
	mips: avoid explicit UB in assignment of mips_io_port_base
	media: em28xx: Fix exception handling in em28xx_alloc_urbs()
	iommu/mediatek: Fix iova_to_phys PA start for 4GB mode
	ahci: Do not export local variable ahci_em_messages
	rxrpc: Fix lack of conn cleanup when local endpoint is cleaned up [ver #2]
	Partially revert "kfifo: fix kfifo_alloc() and kfifo_init()"
	hwmon: (lm75) Fix write operations for negative temperatures
	net/sched: cbs: Set default link speed to 10 Mbps in cbs_set_port_rate
	power: supply: Init device wakeup after device_add()
	x86, perf: Fix the dependency of the x86 insn decoder selftest
	staging: greybus: light: fix a couple double frees
	irqdomain: Add the missing assignment of domain->fwnode for named fwnode
	bcma: fix incorrect update of BCMA_CORE_PCI_MDIO_DATA
	usb: typec: tps6598x: Fix build error without CONFIG_REGMAP_I2C
	bcache: Fix an error code in bch_dump_read()
	iio: dac: ad5380: fix incorrect assignment to val
	netfilter: ctnetlink: honor IPS_OFFLOAD flag
	ath9k: dynack: fix possible deadlock in ath_dynack_node_{de}init
	wcn36xx: use dynamic allocation for large variables
	tty: serial: fsl_lpuart: Use appropriate lpuart32_* I/O funcs
	ARM: dts: aspeed-g5: Fixe gpio-ranges upper limit
	xsk: avoid store-tearing when assigning queues
	xsk: avoid store-tearing when assigning umem
	led: triggers: Fix dereferencing of null pointer
	net: sonic: return NETDEV_TX_OK if failed to map buffer
	net: hns3: fix error VF index when setting VLAN offload
	rtlwifi: Fix file release memory leak
	ARM: dts: logicpd-som-lv: Fix i2c2 and i2c3 Pin mux
	f2fs: fix wrong error injection path in inc_valid_block_count()
	f2fs: fix error path of f2fs_convert_inline_page()
	scsi: fnic: fix msix interrupt allocation
	Btrfs: fix hang when loading existing inode cache off disk
	Btrfs: fix inode cache waiters hanging on failure to start caching thread
	Btrfs: fix inode cache waiters hanging on path allocation failure
	btrfs: use correct count in btrfs_file_write_iter()
	ixgbe: sync the first fragment unconditionally
	hwmon: (shtc1) fix shtc1 and shtw1 id mask
	net: sonic: replace dev_kfree_skb in sonic_send_packet
	pinctrl: iproc-gpio: Fix incorrect pinconf configurations
	gpio/aspeed: Fix incorrect number of banks
	ath10k: adjust skb length in ath10k_sdio_mbox_rx_packet
	RDMA/cma: Fix false error message
	net/rds: Fix 'ib_evt_handler_call' element in 'rds_ib_stat_names'
	um: Fix off by one error in IRQ enumeration
	bnxt_en: Increase timeout for HWRM_DBG_COREDUMP_XX commands
	f2fs: fix to avoid accessing uninitialized field of inode page in is_alive()
	mailbox: qcom-apcs: fix max_register value
	clk: actions: Fix factor clk struct member access
	powerpc/mm/mce: Keep irqs disabled during lockless page table walk
	bpf: fix BTF limits
	crypto: hisilicon - Matching the dma address for dma_pool_free()
	iommu/amd: Wait for completion of IOTLB flush in attach_device
	net: aquantia: Fix aq_vec_isr_legacy() return value
	cxgb4: Signedness bug in init_one()
	net: hisilicon: Fix signedness bug in hix5hd2_dev_probe()
	net: broadcom/bcmsysport: Fix signedness in bcm_sysport_probe()
	net: netsec: Fix signedness bug in netsec_probe()
	net: socionext: Fix a signedness bug in ave_probe()
	net: stmmac: dwmac-meson8b: Fix signedness bug in probe
	net: axienet: fix a signedness bug in probe
	of: mdio: Fix a signedness bug in of_phy_get_and_connect()
	net: nixge: Fix a signedness bug in nixge_probe()
	net: ethernet: stmmac: Fix signedness bug in ipq806x_gmac_of_parse()
	net: sched: cbs: Avoid division by zero when calculating the port rate
	nvme: retain split access workaround for capability reads
	net: stmmac: gmac4+: Not all Unicast addresses may be available
	rxrpc: Fix trace-after-put looking at the put connection record
	mac80211: accept deauth frames in IBSS mode
	llc: fix another potential sk_buff leak in llc_ui_sendmsg()
	llc: fix sk_buff refcounting in llc_conn_state_process()
	ip6erspan: remove the incorrect mtu limit for ip6erspan
	net: stmmac: fix length of PTP clock's name string
	net: stmmac: fix disabling flexible PPS output
	sctp: add chunks to sk_backlog when the newsk sk_socket is not set
	s390/qeth: Fix error handling during VNICC initialization
	s390/qeth: Fix initialization of vnicc cmd masks during set online
	act_mirred: Fix mirred_init_module error handling
	net: avoid possible false sharing in sk_leave_memory_pressure()
	net: add {READ|WRITE}_ONCE() annotations on ->rskq_accept_head
	tcp: annotate lockless access to tcp_memory_pressure
	net/smc: receive returns without data
	net/smc: receive pending data after RCV_SHUTDOWN
	drm/msm/dsi: Implement reset correctly
	vhost/test: stop device before reset
	dmaengine: imx-sdma: fix size check for sdma script_number
	firmware: dmi: Fix unlikely out-of-bounds read in save_mem_devices
	arm64: hibernate: check pgd table allocation
	net: netem: fix error path for corrupted GSO frames
	net: netem: correct the parent's backlog when corrupted packet was dropped
	xsk: Fix registration of Rx-only sockets
	bpf, offload: Unlock on error in bpf_offload_dev_create()
	afs: Fix missing timeout reset
	net: qca_spi: Move reset_count to struct qcaspi
	hv_netvsc: Fix offset usage in netvsc_send_table()
	hv_netvsc: Fix send_table offset in case of a host bug
	afs: Fix large file support
	drm: panel-lvds: Potential Oops in probe error handling
	hwrng: omap3-rom - Fix missing clock by probing with device tree
	dpaa_eth: perform DMA unmapping before read
	dpaa_eth: avoid timestamp read on error paths
	MIPS: Loongson: Fix return value of loongson_hwmon_init
	hv_netvsc: flag software created hash value
	net: neigh: use long type to store jiffies delta
	packet: fix data-race in fanout_flow_is_huge()
	i2c: stm32f7: report dma error during probe
	mmc: sdio: fix wl1251 vendor id
	mmc: core: fix wl1251 sdio quirks
	affs: fix a memory leak in affs_remount
	afs: Remove set but not used variables 'before', 'after'
	dmaengine: ti: edma: fix missed failure handling
	drm/radeon: fix bad DMA from INTERRUPT_CNTL2
	arm64: dts: juno: Fix UART frequency
	samples/bpf: Fix broken xdp_rxq_info due to map order assumptions
	usb: dwc3: Allow building USB_DWC3_QCOM without EXTCON
	IB/iser: Fix dma_nents type definition
	serial: stm32: fix clearing interrupt error flags
	arm64: dts: meson-gxm-khadas-vim2: fix uart_A bluetooth node
	m68k: Call timer_interrupt() with interrupts disabled
	Linux 4.19.99

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ieabeab79ea5c8cb4b6b1552702fa5d6100cea5db
2020-01-27 15:55:44 +01:00
Ming Lei
b77f9249e6 block: don't use bio->bi_vcnt to figure out segment number
[ Upstream commit 1a67356e9a4829da2935dd338630a550c59c8489 ]

It is wrong to use bio->bi_vcnt to figure out how many segments
there are in the bio even though CLONED flag isn't set on this bio,
because this bio may be splitted or advanced.

So always use bio_segments() in blk_recount_segments(), and it shouldn't
cause any performance loss now because the physical segment number is figured
out in blk_queue_split() and BIO_SEG_VALID is set meantime since
bdced438ac ("block: setup bi_phys_segments after splitting").

Reviewed-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Fixes: 76d8137a31 ("blk-merge: recaculate segment if it isn't less than max segments")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-27 14:50:23 +01:00
Eric Biggers
b32863f17f ANDROID: dm: add dm-default-key target for metadata encryption
Add a device-mapper target "dm-default-key" which assigns an encryption
key to bios that aren't for the contents of an encrypted file.

This ensures that all blocks on-disk will be encrypted with some key,
without the performance hit of file contents being encrypted twice when
fscrypt (File-Based Encryption) is used.

It is only appropriate to use dm-default-key when key configuration is
tightly controlled, like it is in Android, such that all fscrypt keys
are at least as hard to compromise as the default key.

Compared to the original version of dm-default-key, this has been
modified to use the new vendor-independent inline encryption framework
(which works even when no inline encryption hardware is present), the
table syntax has been changed to match dm-crypt, and support for
specifying Adiantum encryption has been added.  These changes also mean
that dm-default-key now always explicitly specifies the DUN (the IV).

Also, to handle f2fs moving blocks of encrypted files around without the
key, and to handle ext4 and f2fs filesystems mounted without
'-o inlinecrypt', the mapping logic is no longer "set a key on the bio
if it doesn't have one already", but rather "set a key on the bio unless
the bio has the bi_skip_dm_default_key flag set".  Filesystems set this
flag on *all* bios for encrypted file contents, regardless of whether
they are encrypting/decrypting the file using inline encryption or the
traditional filesystem-layer encryption, or moving the raw data.

For the bi_skip_dm_default_key flag, a new field in struct bio is used
rather than a bit in bi_opf so that fscrypt_set_bio_crypt_ctx() can set
the flag, minimizing the changes needed to filesystems.  (bi_opf is
usually overwritten after fscrypt_set_bio_crypt_ctx() is called.)

Bug: 137270441
Bug: 147814592
Change-Id: I69c9cd1e968ccf990e4ad96e5115b662237f5095
Signed-off-by: Eric Biggers <ebiggers@google.com>
2020-01-24 10:49:09 -08:00
Eric Biggers
44e1174c18 ANDROID: dm: add support for passing through inline crypto support
Update the device-mapper core to support exposing the inline crypto
support of the underlying device(s) through the device-mapper device.

This works by creating a "passthrough keyslot manager" for the dm
device, which declares support for the set of (crypto_mode,
data_unit_size) combos which all the underlying devices support.  When a
supported combo is used, the bio cloning code handles cloning the crypto
context to the bios for all the underlying devices.  When an unsupported
combo is used, the blk-crypto fallback is used as usual.

Crypto support on each underlying device is ignored unless the
corresponding dm target opts into exposing it.  This is needed because
for inline crypto to semantically operate on the original bio, the data
must not be transformed by the dm target.  Thus, targets like dm-linear
can expose crypto support of the underlying device, but targets like
dm-crypt can't.  (dm-crypt could use inline crypto itself, though.)

When a key is evicted from the dm device, it is evicted from all
underlying devices.

Bug: 137270441
Bug: 147814592
Change-Id: If28b574f2e28268db5eb9f325d4cf8f96cb63e3f
Signed-off-by: Eric Biggers <ebiggers@google.com>
2020-01-24 10:49:09 -08:00
Satya Tangirala
e65d08ae68 ANDROID: block: Introduce passthrough keyslot manager
The regular keyslot manager is designed for devices that have a small
number of keyslots that need to be programmed with keys ahead of time,
and bios that are sent to the device need to be tagged with a keyslot
index.

Some inline encryption hardware may not have any limitations on the
number of keyslot, and may instead allow each bio to be tagged with
a raw key, data unit number, etc. rather than a pre-programmed keyslot's
index. These devices don't need any sort of keyslot management, and it's
better for these devices not to have to allocate a regular keyslot
manager with some fixed number of keyslots. These devices can instead
set up a passthrough keyslot manager in their request queue, which
require less resources than regular keyslot managers, as they simply
do no-ops when trying to program keys into slots.

Separately, the device mapper may map over devices that have inline
encryption hardware, and it wants to pass the key along to the
underlying hardware. While the DM layer can expose inline encryption
capabilities by setting up a regular keyslot manager with some fixed
number of keyslots in the dm device's request queue, this only wastes
memory since the keys programmed into the dm device's request queue
will never be used. Instead, it's better to set up a passthrough
keyslot manager for dm devices.

Bug: 137270441
Bug: 147814592
Change-Id: I6d91e83e86a73b0d6066873c8a9117cf2c089234
Signed-off-by: Satya Tangirala <satyat@google.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
2020-01-24 10:49:09 -08:00
Eric Biggers
0f1c72a2f5 ANDROID: block: export symbols needed for modules to use inline crypto
Export the blk-crypto symbols needed for modules to use inline crypto.

These would have already been exported, except that so far they've only
been used by fs/crypto/, which is no longer modular.

Bug: 137270441
Bug: 147814592
Change-Id: I64bf98aecabe891c188b30dd50124aacb1e008ca
Signed-off-by: Eric Biggers <ebiggers@google.com>
2020-01-24 10:49:09 -08:00
Eric Biggers
35b62551b9 ANDROID: block: fix some inline crypto bugs
While we're waiting for v7 of the inline crypto patchset, fix some bugs
that made it into the v6 patchset, including one that caused bios with
an encryption context to never be merged, and one that could cause
non-contiguous pages to incorrectly added to a bio.

Bug: 137270441
Change-Id: I3911fcd6c76b5c9063b86d6af6267ad990a46718
Signed-off-by: Eric Biggers <ebiggers@google.com>
2020-01-24 10:49:09 -08:00
Greg Kroah-Hartman
8cb4870403 This is the 4.19.98 stable release
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Merge 4.19.98 into android-4.19

Changes in 4.19.98
	ARM: dts: meson8: fix the size of the PMU registers
	clk: qcom: gcc-sdm845: Add missing flag to votable GDSCs
	dt-bindings: reset: meson8b: fix duplicate reset IDs
	ARM: dts: imx6q-dhcom: fix rtc compatible
	clk: Don't try to enable critical clocks if prepare failed
	ASoC: msm8916-wcd-digital: Reset RX interpolation path after use
	iio: buffer: align the size of scan bytes to size of the largest element
	USB: serial: simple: Add Motorola Solutions TETRA MTP3xxx and MTP85xx
	USB: serial: option: Add support for Quectel RM500Q
	USB: serial: opticon: fix control-message timeouts
	USB: serial: option: add support for Quectel RM500Q in QDL mode
	USB: serial: suppress driver bind attributes
	USB: serial: ch341: handle unbound port at reset_resume
	USB: serial: io_edgeport: handle unbound ports on URB completion
	USB: serial: io_edgeport: add missing active-port sanity check
	USB: serial: keyspan: handle unbound ports
	USB: serial: quatech2: handle unbound ports
	scsi: fnic: fix invalid stack access
	scsi: mptfusion: Fix double fetch bug in ioctl
	ASoC: msm8916-wcd-analog: Fix selected events for MIC BIAS External1
	ASoC: msm8916-wcd-analog: Fix MIC BIAS Internal1
	ARM: dts: imx6q-dhcom: Fix SGTL5000 VDDIO regulator connection
	ALSA: dice: fix fallback from protocol extension into limited functionality
	ALSA: seq: Fix racy access for queue timer in proc read
	ALSA: usb-audio: fix sync-ep altsetting sanity check
	arm64: dts: allwinner: a64: olinuxino: Fix SDIO supply regulator
	Fix built-in early-load Intel microcode alignment
	block: fix an integer overflow in logical block size
	ARM: dts: am571x-idk: Fix gpios property to have the correct gpio number
	LSM: generalize flag passing to security_capable
	ptrace: reintroduce usage of subjective credentials in ptrace_has_cap()
	usb: core: hub: Improved device recognition on remote wakeup
	x86/resctrl: Fix an imbalance in domain_remove_cpu()
	x86/CPU/AMD: Ensure clearing of SME/SEV features is maintained
	x86/efistub: Disable paging at mixed mode entry
	drm/i915: Add missing include file <linux/math64.h>
	x86/resctrl: Fix potential memory leak
	perf hists: Fix variable name's inconsistency in hists__for_each() macro
	perf report: Fix incorrectly added dimensions as switch perf data file
	mm/shmem.c: thp, shmem: fix conflict of above-47bit hint address and PMD alignment
	mm: memcg/slab: call flush_memcg_workqueue() only if memcg workqueue is valid
	btrfs: rework arguments of btrfs_unlink_subvol
	btrfs: fix invalid removal of root ref
	btrfs: do not delete mismatched root refs
	btrfs: fix memory leak in qgroup accounting
	mm/page-writeback.c: avoid potential division by zero in wb_min_max_ratio()
	ARM: dts: imx6qdl: Add Engicam i.Core 1.5 MX6
	ARM: dts: imx6q-icore-mipi: Use 1.5 version of i.Core MX6DL
	ARM: dts: imx7: Fix Toradex Colibri iMX7S 256MB NAND flash support
	net: stmmac: 16KB buffer must be 16 byte aligned
	net: stmmac: Enable 16KB buffer size
	mm/huge_memory.c: make __thp_get_unmapped_area static
	mm/huge_memory.c: thp: fix conflict of above-47bit hint address and PMD alignment
	arm64: dts: agilex/stratix10: fix pmu interrupt numbers
	bpf: Fix incorrect verifier simulation of ARSH under ALU32
	cfg80211: fix deadlocks in autodisconnect work
	cfg80211: fix memory leak in cfg80211_cqm_rssi_update
	cfg80211: fix page refcount issue in A-MSDU decap
	netfilter: fix a use-after-free in mtype_destroy()
	netfilter: arp_tables: init netns pointer in xt_tgdtor_param struct
	netfilter: nft_tunnel: fix null-attribute check
	netfilter: nf_tables: remove WARN and add NLA_STRING upper limits
	netfilter: nf_tables: store transaction list locally while requesting module
	netfilter: nf_tables: fix flowtable list del corruption
	NFC: pn533: fix bulk-message timeout
	batman-adv: Fix DAT candidate selection on little endian systems
	macvlan: use skb_reset_mac_header() in macvlan_queue_xmit()
	hv_netvsc: Fix memory leak when removing rndis device
	net: dsa: tag_qca: fix doubled Tx statistics
	net: hns: fix soft lockup when there is not enough memory
	net: usb: lan78xx: limit size of local TSO packets
	net/wan/fsl_ucc_hdlc: fix out of bounds write on array utdm_info
	ptp: free ptp device pin descriptors properly
	r8152: add missing endpoint sanity check
	tcp: fix marked lost packets not being retransmitted
	sh_eth: check sh_eth_cpu_data::dual_port when dumping registers
	mlxsw: spectrum: Wipe xstats.backlog of down ports
	mlxsw: spectrum_qdisc: Include MC TCs in Qdisc counters
	xen/blkfront: Adjust indentation in xlvbd_alloc_gendisk
	tcp: refine rule to allow EPOLLOUT generation under mem pressure
	irqchip: Place CONFIG_SIFIVE_PLIC into the menu
	cw1200: Fix a signedness bug in cw1200_load_firmware()
	arm64: dts: meson-gxl-s905x-khadas-vim: fix gpio-keys-polled node
	cfg80211: check for set_wiphy_params
	tick/sched: Annotate lockless access to last_jiffies_update
	arm64: dts: marvell: Fix CP110 NAND controller node multi-line comment alignment
	Revert "arm64: dts: juno: add dma-ranges property"
	mtd: devices: fix mchp23k256 read and write
	drm/nouveau/bar/nv50: check bar1 vmm return value
	drm/nouveau/bar/gf100: ensure BAR is mapped
	drm/nouveau/mmu: qualify vmm during dtor
	reiserfs: fix handling of -EOPNOTSUPP in reiserfs_for_each_xattr
	scsi: esas2r: unlock on error in esas2r_nvram_read_direct()
	scsi: qla4xxx: fix double free bug
	scsi: bnx2i: fix potential use after free
	scsi: target: core: Fix a pr_debug() argument
	scsi: qla2xxx: Fix qla2x00_request_irqs() for MSI
	scsi: qla2xxx: fix rports not being mark as lost in sync fabric scan
	scsi: core: scsi_trace: Use get_unaligned_be*()
	perf probe: Fix wrong address verification
	clk: sprd: Use IS_ERR() to validate the return value of syscon_regmap_lookup_by_phandle()
	regulator: ab8500: Remove SYSCLKREQ from enum ab8505_regulator_id
	hwmon: (pmbus/ibm-cffps) Switch LEDs to blocking brightness call
	Linux 4.19.98

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I74a43a9e60734aec6d24b10374ba97de89172eca
2020-01-23 08:36:16 +01:00
Mikulas Patocka
a7f79052d1 block: fix an integer overflow in logical block size
commit ad6bf88a6c19a39fb3b0045d78ea880325dfcf15 upstream.

Logical block size has type unsigned short. That means that it can be at
most 32768. However, there are architectures that can run with 64k pages
(for example arm64) and on these architectures, it may be possible to
create block devices with 64k block size.

For exmaple (run this on an architecture with 64k pages):

Mount will fail with this error because it tries to read the superblock using 2-sector
access:
  device-mapper: writecache: I/O is not aligned, sector 2, size 1024, block size 65536
  EXT4-fs (dm-0): unable to read superblock

This patch changes the logical block size from unsigned short to unsigned
int to avoid the overflow.

Cc: stable@vger.kernel.org
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-23 08:21:29 +01:00
Barani Muthukumaran
a076eebee0 ANDROID: block: add KSM op to derive software secret from wrapped key
Some inline encryption hardware supports protecting the keys in hardware
and only exposing wrapped keys to software.  To use this capability,
userspace must provide a hardware-wrapped key rather than a raw key.

However, users of inline encryption in the kernel won't necessarily use
the user-specified key directly for inline encryption.  E.g. with
fscrypt with IV_INO_LBLK_64 policies, each user-provided key is used to
derive a file contents encryption key, filenames encryption key, and key
identifier.  Since inline encryption can only be used with file
contents, if the user were to provide a wrapped key there would
(naively) be no way to encrypt filenames or derive the key identifier.

This problem is solved by designing the hardware to internally use the
unwrapped key as input to a KDF from which multiple cryptographically
isolated keys can be derived, including both the inline crypto key (not
exposed to software) and a secret that *is* exposed to software.

Add a function to the keyslot manager to allow upper layers to request
this software secret from a hardware-wrapped key.

Bug: 147209885

Change-Id: Iffb05b297b7ba3f3e865e798e4bb73aef4e6ba19
Co-developed-by: Gaurav Kashyap <gaurkash@codeaurora.org>
Signed-off-by: Gaurav Kashyap <gaurkash@codeaurora.org>
Signed-off-by: Barani Muthukumaran <bmuthuku@codeaurora.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
2020-01-22 22:29:19 +00:00
Barani Muthukumaran
3e8c41805f ANDROID: block: provide key size as input to inline crypto APIs
Currently, blk-crypto uses the algorithm to determine the size of keys.
However, some inline encryption hardware supports protecting keys from
software by wrapping the storage keys with an ephemeral key.  Since
these wrapped keys are not of a fixed size, add the capability to
provide the key size when initializing a blk_crypto_key, and update the
keyslot manager to take size into account when comparing keys.

Bug: 147209885

Change-Id: I9bf26d06d18a2d671c51111b4896abe4df303988
Co-developed-by: Gaurav Kashyap <gaurkash@codeaurora.org>
Signed-off-by: Gaurav Kashyap <gaurkash@codeaurora.org>
Signed-off-by: Barani Muthukumaran <bmuthuku@codeaurora.org>
Signed-off-by: Eric Biggers <ebiggers@google.com>
2020-01-22 22:29:05 +00:00
Satya Tangirala
b01c73ea71 BACKPORT: FROMLIST: Update Inline Encryption from v5 to v6 of patch series
Changes v5 => v6:
 - Blk-crypto's kernel crypto API fallback is no longer restricted to
   8-byte DUNs. It's also now separately configurable from blk-crypto, and
   can be disabled entirely, while still allowing the kernel to use inline
   encryption hardware. Further, struct bio_crypt_ctx takes up less space,
   and no longer contains the information needed by the crypto API
   fallback - the fallback allocates the required memory when necessary.
 - Blk-crypto now supports all file content encryption modes supported by
   fscrypt.
 - Fixed bio merging logic in blk-merge.c
 - Fscrypt now supports inline encryption with the direct key policy, since
   blk-crypto now has support for larger DUNs.
 - Keyslot manager now uses a hashtable to lookup which keyslot contains
   any particular key (thanks Eric!)
 - Fscrypt support for inline encryption now handles filesystems with
   multiple underlying block devices (thanks Eric!)
 - Numerous cleanups

Bug: 137270441
Test: refer to I26376479ee38259b8c35732cb3a1d7e15f9b05a3
Change-Id: I13e2e327e0b4784b394cb1e7cf32a04856d95f01
Link: https://lore.kernel.org/linux-block/20191218145136.172774-1-satyat@google.com/
Signed-off-by: Satya Tangirala <satyat@google.com>
2020-01-13 07:11:38 -08:00
Greg Kroah-Hartman
5da11144c3 This is the 4.19.95 stable release
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Merge 4.19.95 into android-4.19

Changes in 4.19.95
	USB: dummy-hcd: use usb_urb_dir_in instead of usb_pipein
	USB: dummy-hcd: increase max number of devices to 32
	bpf: Fix passing modified ctx to ld/abs/ind instruction
	regulator: fix use after free issue
	ASoC: max98090: fix possible race conditions
	locking/spinlock/debug: Fix various data races
	netfilter: ctnetlink: netns exit must wait for callbacks
	mwifiex: Fix heap overflow in mmwifiex_process_tdls_action_frame()
	libtraceevent: Fix lib installation with O=
	x86/efi: Update e820 with reserved EFI boot services data to fix kexec breakage
	ASoC: Intel: bytcr_rt5640: Update quirk for Teclast X89
	efi/gop: Return EFI_NOT_FOUND if there are no usable GOPs
	efi/gop: Return EFI_SUCCESS if a usable GOP was found
	efi/gop: Fix memory leak in __gop_query32/64()
	ARM: dts: imx6ul: imx6ul-14x14-evk.dtsi: Fix SPI NOR probing
	ARM: vexpress: Set-up shared OPP table instead of individual for each CPU
	netfilter: uapi: Avoid undefined left-shift in xt_sctp.h
	netfilter: nft_set_rbtree: bogus lookup/get on consecutive elements in named sets
	netfilter: nf_tables: validate NFT_SET_ELEM_INTERVAL_END
	netfilter: nf_tables: validate NFT_DATA_VALUE after nft_data_init()
	ARM: dts: BCM5301X: Fix MDIO node address/size cells
	selftests/ftrace: Fix multiple kprobe testcase
	ARM: dts: Cygnus: Fix MDIO node address/size cells
	spi: spi-cavium-thunderx: Add missing pci_release_regions()
	ASoC: topology: Check return value for soc_tplg_pcm_create()
	ARM: dts: bcm283x: Fix critical trip point
	bnxt_en: Return error if FW returns more data than dump length
	bpf, mips: Limit to 33 tail calls
	spi: spi-ti-qspi: Fix a bug when accessing non default CS
	ARM: dts: am437x-gp/epos-evm: fix panel compatible
	samples: bpf: Replace symbol compare of trace_event
	samples: bpf: fix syscall_tp due to unused syscall
	powerpc: Ensure that swiotlb buffer is allocated from low memory
	btrfs: Fix error messages in qgroup_rescan_init
	bpf: Clear skb->tstamp in bpf_redirect when necessary
	bnx2x: Do not handle requests from VFs after parity
	bnx2x: Fix logic to get total no. of PFs per engine
	cxgb4: Fix kernel panic while accessing sge_info
	net: usb: lan78xx: Fix error message format specifier
	parisc: add missing __init annotation
	rfkill: Fix incorrect check to avoid NULL pointer dereference
	ASoC: wm8962: fix lambda value
	regulator: rn5t618: fix module aliases
	iommu/iova: Init the struct iova to fix the possible memleak
	kconfig: don't crash on NULL expressions in expr_eq()
	perf/x86/intel: Fix PT PMI handling
	fs: avoid softlockups in s_inodes iterators
	net: stmmac: Do not accept invalid MTU values
	net: stmmac: xgmac: Clear previous RX buffer size
	net: stmmac: RX buffer size must be 16 byte aligned
	net: stmmac: Always arm TX Timer at end of transmission start
	s390/purgatory: do not build purgatory with kcov, kasan and friends
	drm/exynos: gsc: add missed component_del
	s390/dasd/cio: Interpret ccw_device_get_mdc return value correctly
	s390/dasd: fix memleak in path handling error case
	block: fix memleak when __blk_rq_map_user_iov() is failed
	parisc: Fix compiler warnings in debug_core.c
	llc2: Fix return statement of llc_stat_ev_rx_null_dsap_xid_c (and _test_c)
	hv_netvsc: Fix unwanted rx_table reset
	powerpc/vcpu: Assume dedicated processors as non-preempt
	powerpc/spinlocks: Include correct header for static key
	cpufreq: imx6q: read OCOTP through nvmem for imx6ul/imx6ull
	ARM: dts: imx6ul: use nvmem-cells for cpu speed grading
	PCI/switchtec: Read all 64 bits of part_event_bitmap
	gtp: fix bad unlock balance in gtp_encap_enable_socket
	macvlan: do not assume mac_header is set in macvlan_broadcast()
	net: dsa: mv88e6xxx: Preserve priority when setting CPU port.
	net: stmmac: dwmac-sun8i: Allow all RGMII modes
	net: stmmac: dwmac-sunxi: Allow all RGMII modes
	net: usb: lan78xx: fix possible skb leak
	pkt_sched: fq: do not accept silly TCA_FQ_QUANTUM
	sch_cake: avoid possible divide by zero in cake_enqueue()
	sctp: free cmd->obj.chunk for the unprocessed SCTP_CMD_REPLY
	tcp: fix "old stuff" D-SACK causing SACK to be treated as D-SACK
	vxlan: fix tos value before xmit
	vlan: fix memory leak in vlan_dev_set_egress_priority
	vlan: vlan_changelink() should propagate errors
	mlxsw: spectrum_qdisc: Ignore grafting of invisible FIFO
	net: sch_prio: When ungrafting, replace with FIFO
	usb: dwc3: gadget: Fix request complete check
	USB: core: fix check for duplicate endpoints
	USB: serial: option: add Telit ME910G1 0x110a composition
	usb: missing parentheses in USE_NEW_SCHEME
	Linux 4.19.95

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I611f034c58f975a5d2b70eed0a0884f1ff5b09cc
2020-01-12 12:29:19 +01:00
Yang Yingliang
e80e36de03 block: fix memleak when __blk_rq_map_user_iov() is failed
[ Upstream commit 3b7995a98ad76da5597b488fa84aa5a56d43b608 ]

When I doing fuzzy test, get the memleak report:

BUG: memory leak
unreferenced object 0xffff88837af80000 (size 4096):
  comm "memleak", pid 3557, jiffies 4294817681 (age 112.499s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    20 00 00 00 10 01 00 00 00 00 00 00 01 00 00 00   ...............
  backtrace:
    [<000000001c894df8>] bio_alloc_bioset+0x393/0x590
    [<000000008b139a3c>] bio_copy_user_iov+0x300/0xcd0
    [<00000000a998bd8c>] blk_rq_map_user_iov+0x2f1/0x5f0
    [<000000005ceb7f05>] blk_rq_map_user+0xf2/0x160
    [<000000006454da92>] sg_common_write.isra.21+0x1094/0x1870
    [<00000000064bb208>] sg_write.part.25+0x5d9/0x950
    [<000000004fc670f6>] sg_write+0x5f/0x8c
    [<00000000b0d05c7b>] __vfs_write+0x7c/0x100
    [<000000008e177714>] vfs_write+0x1c3/0x500
    [<0000000087d23f34>] ksys_write+0xf9/0x200
    [<000000002c8dbc9d>] do_syscall_64+0x9f/0x4f0
    [<00000000678d8e9a>] entry_SYSCALL_64_after_hwframe+0x49/0xbe

If __blk_rq_map_user_iov() is failed in blk_rq_map_user_iov(),
the bio(s) which is allocated before this failing will leak. The
refcount of the bio(s) is init to 1 and increased to 2 by calling
bio_get(), but __blk_rq_unmap_user() only decrease it to 1, so
the bio cannot be freed. Fix it by calling blk_rq_unmap_user().

Reviewed-by: Bob Liu <bob.liu@oracle.com>
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-12 12:17:22 +01:00
Greg Kroah-Hartman
ff0e96e80f This is the 4.19.94 stable release
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Merge 4.19.94 into android-4.19

Changes in 4.19.94
	nvme_fc: add module to ops template to allow module references
	nvme-fc: fix double-free scenarios on hw queues
	drm/amdgpu: add check before enabling/disabling broadcast mode
	drm/amdgpu: add cache flush workaround to gfx8 emit_fence
	drm/amd/display: Fixed kernel panic when booting with DP-to-HDMI dongle
	iio: adc: max9611: Fix too short conversion time delay
	PM / devfreq: Fix devfreq_notifier_call returning errno
	PM / devfreq: Set scaling_max_freq to max on OPP notifier error
	PM / devfreq: Don't fail devfreq_dev_release if not in list
	afs: Fix afs_find_server lookups for ipv4 peers
	afs: Fix SELinux setting security label on /afs
	RDMA/cma: add missed unregister_pernet_subsys in init failure
	rxe: correctly calculate iCRC for unaligned payloads
	scsi: lpfc: Fix memory leak on lpfc_bsg_write_ebuf_set func
	scsi: qla2xxx: Drop superfluous INIT_WORK of del_work
	scsi: qla2xxx: Don't call qlt_async_event twice
	scsi: qla2xxx: Fix PLOGI payload and ELS IOCB dump length
	scsi: qla2xxx: Configure local loop for N2N target
	scsi: qla2xxx: Send Notify ACK after N2N PLOGI
	scsi: qla2xxx: Ignore PORT UPDATE after N2N PLOGI
	scsi: iscsi: qla4xxx: fix double free in probe
	scsi: libsas: stop discovering if oob mode is disconnected
	drm/nouveau: Move the declaration of struct nouveau_conn_atom up a bit
	usb: gadget: fix wrong endpoint desc
	net: make socket read/write_iter() honor IOCB_NOWAIT
	afs: Fix creation calls in the dynamic root to fail with EOPNOTSUPP
	md: raid1: check rdev before reference in raid1_sync_request func
	s390/cpum_sf: Adjust sampling interval to avoid hitting sample limits
	s390/cpum_sf: Avoid SBD overflow condition in irq handler
	IB/mlx4: Follow mirror sequence of device add during device removal
	IB/mlx5: Fix steering rule of drop and count
	xen-blkback: prevent premature module unload
	xen/balloon: fix ballooned page accounting without hotplug enabled
	PM / hibernate: memory_bm_find_bit(): Tighten node optimisation
	ALSA: hda/realtek - Add Bass Speaker and fixed dac for bass speaker
	ALSA: hda/realtek - Enable the bass speaker of ASUS UX431FLC
	ALSA: hda - fixup for the bass speaker on Lenovo Carbon X1 7th gen
	xfs: fix mount failure crash on invalid iclog memory access
	taskstats: fix data-race
	drm: limit to INT_MAX in create_blob ioctl
	netfilter: nft_tproxy: Fix port selector on Big Endian
	ALSA: ice1724: Fix sleep-in-atomic in Infrasonic Quartet support code
	ALSA: usb-audio: fix set_format altsetting sanity check
	ALSA: usb-audio: set the interface format after resume on Dell WD19
	ALSA: hda/realtek - Add headset Mic no shutup for ALC283
	drm/sun4i: hdmi: Remove duplicate cleanup calls
	MIPS: Avoid VDSO ABI breakage due to global register variable
	media: pulse8-cec: fix lost cec_transmit_attempt_done() call
	media: cec: CEC 2.0-only bcast messages were ignored
	media: cec: avoid decrementing transmit_queue_sz if it is 0
	media: cec: check 'transmit_in_progress', not 'transmitting'
	mm/zsmalloc.c: fix the migrated zspage statistics.
	memcg: account security cred as well to kmemcg
	mm: move_pages: return valid node id in status if the page is already on the target node
	pstore/ram: Write new dumps to start of recycled zones
	locks: print unsigned ino in /proc/locks
	dmaengine: Fix access to uninitialized dma_slave_caps
	compat_ioctl: block: handle Persistent Reservations
	compat_ioctl: block: handle BLKREPORTZONE/BLKRESETZONE
	ata: libahci_platform: Export again ahci_platform_<en/dis>able_phys()
	ata: ahci_brcm: Fix AHCI resources management
	ata: ahci_brcm: Allow optional reset controller to be used
	ata: ahci_brcm: Add missing clock management during recovery
	ata: ahci_brcm: BCM7425 AHCI requires AHCI_HFLAG_DELAY_ENGINE
	libata: Fix retrieving of active qcs
	gpiolib: fix up emulated open drain outputs
	riscv: ftrace: correct the condition logic in function graph tracer
	rseq/selftests: Fix: Namespace gettid() for compatibility with glibc 2.30
	tracing: Fix lock inversion in trace_event_enable_tgid_record()
	tracing: Avoid memory leak in process_system_preds()
	tracing: Have the histogram compare functions convert to u64 first
	tracing: Fix endianness bug in histogram trigger
	apparmor: fix aa_xattrs_match() may sleep while holding a RCU lock
	ALSA: cs4236: fix error return comparison of an unsigned integer
	ALSA: firewire-motu: Correct a typo in the clock proc string
	exit: panic before exit_mm() on global init exit
	arm64: Revert support for execute-only user mappings
	ftrace: Avoid potential division by zero in function profiler
	drm/msm: include linux/sched/task.h
	PM / devfreq: Check NULL governor in available_governors_show
	nfsd4: fix up replay_matches_cache()
	HID: i2c-hid: Reset ALPS touchpads on resume
	ACPI: sysfs: Change ACPI_MASKABLE_GPE_MAX to 0x100
	xfs: don't check for AG deadlock for realtime files in bunmapi
	platform/x86: pmc_atom: Add Siemens CONNECT X300 to critclk_systems DMI table
	Bluetooth: btusb: fix PM leak in error case of setup
	Bluetooth: delete a stray unlock
	Bluetooth: Fix memory leak in hci_connect_le_scan
	media: flexcop-usb: ensure -EIO is returned on error condition
	regulator: ab8500: Remove AB8505 USB regulator
	media: usb: fix memory leak in af9005_identify_state
	dt-bindings: clock: renesas: rcar-usb2-clock-sel: Fix typo in example
	arm64: dts: meson: odroid-c2: Disable usb_otg bus to avoid power failed warning
	tty: serial: msm_serial: Fix lockup for sysrq and oops
	fix compat handling of FICLONERANGE, FIDEDUPERANGE and FS_IOC_FIEMAP
	bdev: Factor out bdev revalidation into a common helper
	bdev: Refresh bdev size for disks without partitioning
	scsi: qedf: Do not retry ELS request if qedf_alloc_cmd fails
	drm/mst: Fix MST sideband up-reply failure handling
	powerpc/pseries/hvconsole: Fix stack overread via udbg
	selftests: rtnetlink: add addresses with fixed life time
	KVM: PPC: Book3S HV: use smp_mb() when setting/clearing host_ipi flag
	rxrpc: Fix possible NULL pointer access in ICMP handling
	tcp: annotate tp->rcv_nxt lockless reads
	net: core: limit nested device depth
	ath9k_htc: Modify byte order for an error message
	ath9k_htc: Discard undersized packets
	xfs: periodically yield scrub threads to the scheduler
	net: add annotations on hh->hh_len lockless accesses
	ubifs: ubifs_tnc_start_commit: Fix OOB in layout_in_gaps
	s390/smp: fix physical to logical CPU map for SMT
	xen/blkback: Avoid unmapping unmapped grant pages
	perf/x86/intel/bts: Fix the use of page_private()
	Linux 4.19.94

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ic3d1a4e10565c38d0e82448f0fb7b6fd1822aab2
2020-01-09 16:14:43 +01:00
Arnd Bergmann
a95d032abe compat_ioctl: block: handle BLKREPORTZONE/BLKRESETZONE
commit 673bdf8ce0a387ef585c13b69a2676096c6edfe9 upstream.

These were added to blkdev_ioctl() but not blkdev_compat_ioctl,
so add them now.

Cc: <stable@vger.kernel.org> # v4.10+
Fixes: 3ed05a987e ("blk-zoned: implement ioctls")
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-09 10:19:01 +01:00
Arnd Bergmann
fc982b8fbd compat_ioctl: block: handle Persistent Reservations
commit b2c0fcd28772f99236d261509bcd242135677965 upstream.

These were added to blkdev_ioctl() in linux-5.5 but not
blkdev_compat_ioctl, so add them now.

Cc: <stable@vger.kernel.org> # v4.4+
Fixes: bbd3e06436 ("block: add an API for Persistent Reservations")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Fold in followup patch from Arnd with missing pr.h header include.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-01-09 10:19:00 +01:00
Greg Kroah-Hartman
d902dae13d This is the 4.19.90 stable release
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Merge 4.19.90 into android-4.19

Changes in 4.19.90
	usb: gadget: configfs: Fix missing spin_lock_init()
	usb: gadget: pch_udc: fix use after free
	scsi: qla2xxx: Fix driver unload hang
	media: venus: remove invalid compat_ioctl32 handler
	USB: uas: honor flag to avoid CAPACITY16
	USB: uas: heed CAPACITY_HEURISTICS
	USB: documentation: flags on usb-storage versus UAS
	usb: Allow USB device to be warm reset in suspended state
	staging: rtl8188eu: fix interface sanity check
	staging: rtl8712: fix interface sanity check
	staging: gigaset: fix general protection fault on probe
	staging: gigaset: fix illegal free on probe errors
	staging: gigaset: add endpoint-type sanity check
	usb: xhci: only set D3hot for pci device
	xhci: Fix memory leak in xhci_add_in_port()
	xhci: Increase STS_HALT timeout in xhci_suspend()
	xhci: handle some XHCI_TRUST_TX_LENGTH quirks cases as default behaviour.
	ARM: dts: pandora-common: define wl1251 as child node of mmc3
	iio: adis16480: Add debugfs_reg_access entry
	iio: humidity: hdc100x: fix IIO_HUMIDITYRELATIVE channel reporting
	iio: imu: inv_mpu6050: fix temperature reporting using bad unit
	USB: atm: ueagle-atm: add missing endpoint check
	USB: idmouse: fix interface sanity checks
	USB: serial: io_edgeport: fix epic endpoint lookup
	usb: roles: fix a potential use after free
	USB: adutux: fix interface sanity check
	usb: core: urb: fix URB structure initialization function
	usb: mon: Fix a deadlock in usbmon between mmap and read
	tpm: add check after commands attribs tab allocation
	mtd: spear_smi: Fix Write Burst mode
	virtio-balloon: fix managed page counts when migrating pages between zones
	usb: dwc3: pci: add ID for the Intel Comet Lake -H variant
	usb: dwc3: gadget: Fix logical condition
	usb: dwc3: ep0: Clear started flag on completion
	phy: renesas: rcar-gen3-usb2: Fix sysfs interface of "role"
	btrfs: check page->mapping when loading free space cache
	btrfs: use refcount_inc_not_zero in kill_all_nodes
	Btrfs: fix metadata space leak on fixup worker failure to set range as delalloc
	Btrfs: fix negative subv_writers counter and data space leak after buffered write
	btrfs: Avoid getting stuck during cyclic writebacks
	btrfs: Remove btrfs_bio::flags member
	Btrfs: send, skip backreference walking for extents with many references
	btrfs: record all roots for rename exchange on a subvol
	rtlwifi: rtl8192de: Fix missing code to retrieve RX buffer address
	rtlwifi: rtl8192de: Fix missing callback that tests for hw release of buffer
	rtlwifi: rtl8192de: Fix missing enable interrupt flag
	lib: raid6: fix awk build warnings
	ovl: fix corner case of non-unique st_dev;st_ino
	ovl: relax WARN_ON() on rename to self
	hwrng: omap - Fix RNG wait loop timeout
	dm writecache: handle REQ_FUA
	dm zoned: reduce overhead of backing device checks
	workqueue: Fix spurious sanity check failures in destroy_workqueue()
	workqueue: Fix pwq ref leak in rescuer_thread()
	ASoC: rt5645: Fixed buddy jack support.
	ASoC: rt5645: Fixed typo for buddy jack support.
	ASoC: Jack: Fix NULL pointer dereference in snd_soc_jack_report
	md: improve handling of bio with REQ_PREFLUSH in md_flush_request()
	blk-mq: avoid sysfs buffer overflow with too many CPU cores
	cgroup: pids: use atomic64_t for pids->limit
	ar5523: check NULL before memcpy() in ar5523_cmd()
	s390/mm: properly clear _PAGE_NOEXEC bit when it is not supported
	media: bdisp: fix memleak on release
	media: radio: wl1273: fix interrupt masking on release
	media: cec.h: CEC_OP_REC_FLAG_ values were swapped
	cpuidle: Do not unset the driver if it is there already
	erofs: zero out when listxattr is called with no xattr
	intel_th: Fix a double put_device() in error path
	intel_th: pci: Add Ice Lake CPU support
	intel_th: pci: Add Tiger Lake CPU support
	PM / devfreq: Lock devfreq in trans_stat_show
	cpufreq: powernv: fix stack bloat and hard limit on number of CPUs
	ACPI / hotplug / PCI: Allocate resources directly under the non-hotplug bridge
	ACPI: OSL: only free map once in osl.c
	ACPI: bus: Fix NULL pointer check in acpi_bus_get_private_data()
	ACPI: PM: Avoid attaching ACPI PM domain to certain devices
	pinctrl: armada-37xx: Fix irq mask access in armada_37xx_irq_set_type()
	pinctrl: samsung: Add of_node_put() before return in error path
	pinctrl: samsung: Fix device node refcount leaks in Exynos wakeup controller init
	pinctrl: samsung: Fix device node refcount leaks in S3C24xx wakeup controller init
	pinctrl: samsung: Fix device node refcount leaks in init code
	pinctrl: samsung: Fix device node refcount leaks in S3C64xx wakeup controller init
	mmc: host: omap_hsmmc: add code for special init of wl1251 to get rid of pandora_wl1251_init_card
	ARM: dts: omap3-tao3530: Fix incorrect MMC card detection GPIO polarity
	ppdev: fix PPGETTIME/PPSETTIME ioctls
	powerpc: Allow 64bit VDSO __kernel_sync_dicache to work across ranges >4GB
	powerpc/xive: Prevent page fault issues in the machine crash handler
	powerpc: Allow flush_icache_range to work across ranges >4GB
	powerpc/xive: Skip ioremap() of ESB pages for LSI interrupts
	video/hdmi: Fix AVI bar unpack
	quota: Check that quota is not dirty before release
	ext2: check err when partial != NULL
	quota: fix livelock in dquot_writeback_dquots
	ext4: Fix credit estimate for final inode freeing
	reiserfs: fix extended attributes on the root directory
	block: fix single range discard merge
	scsi: zfcp: trace channel log even for FCP command responses
	scsi: qla2xxx: Fix DMA unmap leak
	scsi: qla2xxx: Fix hang in fcport delete path
	scsi: qla2xxx: Fix session lookup in qlt_abort_work()
	scsi: qla2xxx: Fix qla24xx_process_bidir_cmd()
	scsi: qla2xxx: Always check the qla2x00_wait_for_hba_online() return value
	scsi: qla2xxx: Fix message indicating vectors used by driver
	scsi: qla2xxx: Fix SRB leak on switch command timeout
	xhci: make sure interrupts are restored to correct state
	usb: typec: fix use after free in typec_register_port()
	omap: pdata-quirks: remove openpandora quirks for mmc3 and wl1251
	scsi: lpfc: Cap NPIV vports to 256
	scsi: lpfc: Correct code setting non existent bits in sli4 ABORT WQE
	scsi: lpfc: Correct topology type reporting on G7 adapters
	drbd: Change drbd_request_detach_interruptible's return type to int
	e100: Fix passing zero to 'PTR_ERR' warning in e100_load_ucode_wait
	pvcalls-front: don't return error when the ring is full
	sch_cake: Correctly update parent qlen when splitting GSO packets
	net/smc: do not wait under send_lock
	net: hns3: clear pci private data when unload hns3 driver
	net: hns3: change hnae3_register_ae_dev() to int
	net: hns3: Check variable is valid before assigning it to another
	scsi: hisi_sas: send primitive NOTIFY to SSP situation only
	scsi: hisi_sas: Reject setting programmed minimum linkrate > 1.5G
	x86/MCE/AMD: Turn off MC4_MISC thresholding on all family 0x15 models
	x86/MCE/AMD: Carve out the MC4_MISC thresholding quirk
	power: supply: cpcap-battery: Fix signed counter sample register
	mlxsw: spectrum_router: Refresh nexthop neighbour when it becomes dead
	media: vimc: fix component match compare
	ath10k: fix fw crash by moving chip reset after napi disabled
	regulator: 88pm800: fix warning same module names
	powerpc: Avoid clang warnings around setjmp and longjmp
	powerpc: Fix vDSO clock_getres()
	ext4: work around deleting a file with i_nlink == 0 safely
	firmware: qcom: scm: Ensure 'a0' status code is treated as signed
	mm/shmem.c: cast the type of unmap_start to u64
	rtc: disable uie before setting time and enable after
	splice: only read in as much information as there is pipe buffer space
	ext4: fix a bug in ext4_wait_for_tail_page_commit
	mfd: rk808: Fix RK818 ID template
	mm, thp, proc: report THP eligibility for each vma
	s390/smp,vdso: fix ASCE handling
	blk-mq: make sure that line break can be printed
	workqueue: Fix missing kfree(rescuer) in destroy_workqueue()
	perf callchain: Fix segfault in thread__resolve_callchain_sample()
	gre: refetch erspan header from skb->data after pskb_may_pull()
	firmware: arm_scmi: Avoid double free in error flow
	sunrpc: fix crash when cache_head become valid before update
	net/mlx5e: Fix SFF 8472 eeprom length
	leds: trigger: netdev: fix handling on interface rename
	PCI: rcar: Fix missing MACCTLR register setting in initialization sequence
	gfs2: fix glock reference problem in gfs2_trans_remove_revoke
	of: overlay: add_changeset_property() memory leak
	kernel/module.c: wakeup processes in module_wq on module unload
	cifs: Fix potential softlockups while refreshing DFS cache
	gpiolib: acpi: Add Terra Pad 1061 to the run_edge_events_on_boot_blacklist
	raid5: need to set STRIPE_HANDLE for batch head
	scsi: qla2xxx: Change discovery state before PLOGI
	iio: imu: mpu6050: add missing available scan masks
	idr: Fix idr_get_next_ul race with idr_remove
	scsi: zorro_esp: Limit DMA transfers to 65536 bytes (except on Fastlane)
	of: unittest: fix memory leak in attach_node_and_children
	Linux 4.19.90

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I790291e9f3d3c8dd3f53e4387de25ff272ad4f39
2019-12-18 09:03:30 +01:00
Ming Lei
d88fb4f0b0 blk-mq: make sure that line break can be printed
commit d2c9be89f8ebe7ebcc97676ac40f8dec1cf9b43a upstream.

8962842ca5ab ("blk-mq: avoid sysfs buffer overflow with too many CPU cores")
avoids sysfs buffer overflow, and reserves one character for line break.
However, the last snprintf() doesn't get correct 'size' parameter passed
in, so fixed it.

Fixes: 8962842ca5ab ("blk-mq: avoid sysfs buffer overflow with too many CPU cores")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Cc: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-12-17 20:35:48 +01:00
Ming Lei
42d72c9d28 block: fix single range discard merge
commit 2a5cf35cd6c56b2924bce103413ad3381bdc31fa upstream.

There are actually two kinds of discard merge:

- one is the normal discard merge, just like normal read/write request,
and call it single-range discard

- another is the multi-range discard, queue_max_discard_segments(rq->q) > 1

For the former case, queue_max_discard_segments(rq->q) is 1, and we
should handle this kind of discard merge like the normal read/write
request.

This patch fixes the following kernel panic issue[1], which is caused by
not removing the single-range discard request from elevator queue.

Guangwu has one raid discard test case, in which this issue is a bit
easier to trigger, and I verified that this patch can fix the kernel
panic issue in Guangwu's test case.

[1] kernel panic log from Jens's report

 BUG: unable to handle kernel NULL pointer dereference at 0000000000000148
 PGD 0 P4D 0.
 Oops: 0000 [#1] SMP PTI
 CPU: 37 PID: 763 Comm: kworker/37:1H Not tainted \
4.20.0-rc3-00649-ge64d9a554a91-dirty #14  Hardware name: Wiwynn \
Leopard-Orv2/Leopard-DDR BW, BIOS LBM08   03/03/2017       Workqueue: kblockd \
blk_mq_run_work_fn                                            RIP: \
0010:blk_mq_get_driver_tag+0x81/0x120                                       Code: 24 \
10 48 89 7c 24 20 74 21 83 fa ff 0f 95 c0 48 8b 4c 24 28 65 48 33 0c 25 28 00 00 00 \
0f 85 96 00 00 00 48 83 c4 30 5b 5d c3 <48> 8b 87 48 01 00 00 8b 40 04 39 43 20 72 37 \
f6 87 b0 00 00 00 02  RSP: 0018:ffffc90004aabd30 EFLAGS: 00010246                     \
  RAX: 0000000000000003 RBX: ffff888465ea1300 RCX: ffffc90004aabde8
 RDX: 00000000ffffffff RSI: ffffc90004aabde8 RDI: 0000000000000000
 RBP: 0000000000000000 R08: ffff888465ea1348 R09: 0000000000000000
 R10: 0000000000001000 R11: 00000000ffffffff R12: ffff888465ea1300
 R13: 0000000000000000 R14: ffff888465ea1348 R15: ffff888465d10000
 FS:  0000000000000000(0000) GS:ffff88846f9c0000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 0000000000000148 CR3: 000000000220a003 CR4: 00000000003606e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  blk_mq_dispatch_rq_list+0xec/0x480
  ? elv_rb_del+0x11/0x30
  blk_mq_do_dispatch_sched+0x6e/0xf0
  blk_mq_sched_dispatch_requests+0xfa/0x170
  __blk_mq_run_hw_queue+0x5f/0xe0
  process_one_work+0x154/0x350
  worker_thread+0x46/0x3c0
  kthread+0xf5/0x130
  ? process_one_work+0x350/0x350
  ? kthread_destroy_worker+0x50/0x50
  ret_from_fork+0x1f/0x30
 Modules linked in: sb_edac x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel \
kvm switchtec irqbypass iTCO_wdt iTCO_vendor_support efivars cdc_ether usbnet mii \
cdc_acm i2c_i801 lpc_ich mfd_core ipmi_si ipmi_devintf ipmi_msghandler acpi_cpufreq \
button sch_fq_codel nfsd nfs_acl lockd grace auth_rpcgss oid_registry sunrpc nvme \
nvme_core fuse sg loop efivarfs autofs4  CR2: 0000000000000148                        \

 ---[ end trace 340a1fb996df1b9b ]---
 RIP: 0010:blk_mq_get_driver_tag+0x81/0x120
 Code: 24 10 48 89 7c 24 20 74 21 83 fa ff 0f 95 c0 48 8b 4c 24 28 65 48 33 0c 25 28 \
00 00 00 0f 85 96 00 00 00 48 83 c4 30 5b 5d c3 <48> 8b 87 48 01 00 00 8b 40 04 39 43 \
20 72 37 f6 87 b0 00 00 00 02

Fixes: 445251d0f4 ("blk-mq: fix discard merge with scheduler attached")
Reported-by: Jens Axboe <axboe@kernel.dk>
Cc: Guangwu Zhang <guazhang@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Jianchao Wang <jianchao.w.wang@oracle.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Cc: Andre Tomt <andre@tomt.net>
Cc: Jack Wang <jack.wang.usish@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-12-17 20:35:21 +01:00
Ming Lei
317c80c672 blk-mq: avoid sysfs buffer overflow with too many CPU cores
commit 8962842ca5abdcf98e22ab3b2b45a103f0408b95 upstream.

It is reported that sysfs buffer overflow can be triggered if the system
has too many CPU cores(>841 on 4K PAGE_SIZE) when showing CPUs of
hctx via /sys/block/$DEV/mq/$N/cpu_list.

Use snprintf to avoid the potential buffer overflow.

This version doesn't change the attribute format, and simply stops
showing CPU numbers if the buffer is going to overflow.

Cc: stable@vger.kernel.org
Fixes: 676141e48af7("blk-mq: don't dump CPU -> hw queue map on driver load")
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-12-17 20:34:55 +01:00
Greg Kroah-Hartman
2700cf837e This is the 4.19.87 stable release
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Merge 4.19.87 into android-4.19

Changes in 4.19.87
	mlxsw: spectrum_router: Fix determining underlay for a GRE tunnel
	net/mlx4_en: fix mlx4 ethtool -N insertion
	net/mlx4_en: Fix wrong limitation for number of TX rings
	net: rtnetlink: prevent underflows in do_setvfinfo()
	net/sched: act_pedit: fix WARN() in the traffic path
	net: sched: ensure opts_len <= IP_TUNNEL_OPTS_MAX in act_tunnel_key
	sfc: Only cancel the PPS workqueue if it exists
	net/mlx5e: Fix set vf link state error flow
	net/mlxfw: Verify FSM error code translation doesn't exceed array size
	net/mlx5: Fix auto group size calculation
	vhost/vsock: split packets to send using multiple buffers
	gpio: max77620: Fixup debounce delays
	tools: gpio: Correctly add make dependencies for gpio_utils
	nbd:fix memory leak in nbd_get_socket()
	virtio_console: allocate inbufs in add_port() only if it is needed
	Revert "fs: ocfs2: fix possible null-pointer dereferences in ocfs2_xa_prepare_entry()"
	mm/ksm.c: don't WARN if page is still mapped in remove_stable_node()
	drm/amd/powerplay: issue no PPSMC_MSG_GetCurrPkgPwr on unsupported ASICs
	drm/i915/pmu: "Frequency" is reported as accumulated cycles
	drm/i915/userptr: Try to acquire the page lock around set_page_dirty()
	mwifiex: Fix NL80211_TX_POWER_LIMITED
	ALSA: isight: fix leak of reference to firewire unit in error path of .probe callback
	crypto: testmgr - fix sizeof() on COMP_BUF_SIZE
	printk: lock/unlock console only for new logbuf entries
	printk: fix integer overflow in setup_log_buf()
	pinctrl: madera: Fix uninitialized variable bug in madera_mux_set_mux
	PCI: cadence: Write MSI data with 32bits
	gfs2: Fix marking bitmaps non-full
	pty: fix compat ioctls
	synclink_gt(): fix compat_ioctl()
	powerpc: Fix signedness bug in update_flash_db()
	powerpc/boot: Fix opal console in boot wrapper
	powerpc/boot: Disable vector instructions
	powerpc/eeh: Fix null deref for devices removed during EEH
	powerpc/eeh: Fix use of EEH_PE_KEEP on wrong field
	EDAC, thunderx: Fix memory leak in thunderx_l2c_threaded_isr()
	mt76: do not store aggregation sequence number for null-data frames
	mt76x0: phy: fix restore phase in mt76x0_phy_recalibrate_after_assoc
	brcmsmac: AP mode: update beacon when TIM changes
	ath10k: set probe request oui during driver start
	ath10k: allocate small size dma memory in ath10k_pci_diag_write_mem
	skd: fixup usage of legacy IO API
	cdrom: don't attempt to fiddle with cdo->capability
	spi: sh-msiof: fix deferred probing
	mmc: mediatek: fill the actual clock for mmc debugfs
	mmc: mediatek: fix cannot receive new request when msdc_cmd_is_ready fail
	PCI: mediatek: Fix class type for MT7622 to PCI_CLASS_BRIDGE_PCI
	btrfs: defrag: use btrfs_mod_outstanding_extents in cluster_pages_for_defrag
	btrfs: handle error of get_old_root
	gsmi: Fix bug in append_to_eventlog sysfs handler
	misc: mic: fix a DMA pool free failure
	w1: IAD Register is yet readable trough iad sys file. Fix snprintf (%u for unsigned, count for max size).
	m68k: fix command-line parsing when passed from u-boot
	scsi: hisi_sas: Feed back linkrate(max/min) when re-attached
	scsi: hisi_sas: Fix the race between IO completion and timeout for SMP/internal IO
	scsi: hisi_sas: Free slot later in slot_complete_vx_hw()
	RDMA/bnxt_re: Avoid NULL check after accessing the pointer
	RDMA/bnxt_re: Fix qp async event reporting
	RDMA/bnxt_re: Avoid resource leak in case the NQ registration fails
	pinctrl: sunxi: Fix a memory leak in 'sunxi_pinctrl_build_state()'
	pwm: lpss: Only set update bit if we are actually changing the settings
	amiflop: clean up on errors during setup
	qed: Align local and global PTT to propagate through the APIs.
	scsi: ips: fix missing break in switch
	nfp: bpf: protect against mis-initializing atomic counters
	KVM: nVMX: reset cache/shadows when switching loaded VMCS
	KVM: nVMX: move check_vmentry_postreqs() call to nested_vmx_enter_non_root_mode()
	KVM/x86: Fix invvpid and invept register operand size in 64-bit mode
	clk: tegra: Fixes for MBIST work around
	scsi: isci: Use proper enumerated type in atapi_d2h_reg_frame_handler
	scsi: isci: Change sci_controller_start_task's return type to sci_status
	scsi: bfa: Avoid implicit enum conversion in bfad_im_post_vendor_event
	scsi: iscsi_tcp: Explicitly cast param in iscsi_sw_tcp_host_get_param
	crypto: ccree - avoid implicit enum conversion
	nvmet: avoid integer overflow in the discard code
	nvmet-fcloop: suppress a compiler warning
	nvme-pci: fix hot removal during error handling
	PCI: mediatek: Fixup MSI enablement logic by enabling MSI before clocks
	clk: mmp2: fix the clock id for sdh2_clk and sdh3_clk
	clk: at91: audio-pll: fix audio pmc type
	ASoC: tegra_sgtl5000: fix device_node refcounting
	scsi: dc395x: fix dma API usage in srb_done
	scsi: dc395x: fix DMA API usage in sg_update_list
	scsi: zorro_esp: Limit DMA transfers to 65535 bytes
	net: dsa: mv88e6xxx: Fix 88E6141/6341 2500mbps SERDES speed
	net: fix warning in af_unix
	net: ena: Fix Kconfig dependency on X86
	xfs: fix use-after-free race in xfs_buf_rele
	xfs: clear ail delwri queued bufs on unmount of shutdown fs
	kprobes, x86/ptrace.h: Make regs_get_kernel_stack_nth() not fault on bad stack
	ACPI / scan: Create platform device for INT33FE ACPI nodes
	PM / Domains: Deal with multiple states but no governor in genpd
	ALSA: i2c/cs8427: Fix int to char conversion
	macintosh/windfarm_smu_sat: Fix debug output
	PCI: vmd: Detach resources after stopping root bus
	USB: misc: appledisplay: fix backlight update_status return code
	usbip: tools: fix atoi() on non-null terminated string
	sctp: use sk_wmem_queued to check for writable space
	dm raid: avoid bitmap with raid4/5/6 journal device
	selftests/bpf: fix file resource leak in load_kallsyms
	SUNRPC: Fix a compile warning for cmpxchg64()
	sunrpc: safely reallow resvport min/max inversion
	atm: zatm: Fix empty body Clang warnings
	s390/perf: Return error when debug_register fails
	swiotlb: do not panic on mapping failures
	spi: omap2-mcspi: Set FIFO DMA trigger level to word length
	x86/intel_rdt: Prevent pseudo-locking from using stale pointers
	sparc: Fix parport build warnings.
	scsi: hisi_sas: Fix NULL pointer dereference
	powerpc/pseries: Export raw per-CPU VPA data via debugfs
	powerpc/mm/radix: Fix off-by-one in split mapping logic
	powerpc/mm/radix: Fix overuse of small pages in splitting logic
	powerpc/mm/radix: Fix small page at boundary when splitting
	powerpc/64s/radix: Fix radix__flush_tlb_collapsed_pmd double flushing pmd
	selftests/bpf: fix return value comparison for tests in test_libbpf.sh
	tools: bpftool: fix completion for "bpftool map update"
	ceph: fix dentry leak in ceph_readdir_prepopulate
	ceph: only allow punch hole mode in fallocate
	rtc: s35390a: Change buf's type to u8 in s35390a_init
	RISC-V: Avoid corrupting the upper 32-bit of phys_addr_t in ioremap
	thermal: armada: fix a test in probe()
	f2fs: fix to spread clear_cold_data()
	f2fs: spread f2fs_set_inode_flags()
	mISDN: Fix type of switch control variable in ctrl_teimanager
	qlcnic: fix a return in qlcnic_dcb_get_capability()
	net: ethernet: ti: cpsw: unsync mcast entries while switch promisc mode
	mfd: arizona: Correct calling of runtime_put_sync
	mfd: mc13xxx-core: Fix PMIC shutdown when reading ADC values
	mfd: intel_soc_pmic_bxtwc: Chain power button IRQs as well
	mfd: max8997: Enale irq-wakeup unconditionally
	net: socionext: Stop PHY before resetting netsec
	fs/cifs: fix uninitialised variable warnings
	spi: uniphier: fix incorrect property items
	selftests/ftrace: Fix to test kprobe $comm arg only if available
	selftests: watchdog: fix message when /dev/watchdog open fails
	selftests: watchdog: Fix error message.
	selftests: kvm: Fix -Wformat warnings
	selftests: fix warning: "_GNU_SOURCE" redefined
	thermal: rcar_thermal: fix duplicate IRQ request
	thermal: rcar_thermal: Prevent hardware access during system suspend
	net: ethernet: cadence: fix socket buffer corruption problem
	bpf: devmap: fix wrong interface selection in notifier_call
	bpf, btf: fix a missing check bug in btf_parse
	powerpc/process: Fix flush_all_to_thread for SPE
	sparc64: Rework xchg() definition to avoid warnings.
	arm64: lib: use C string functions with KASAN enabled
	fs/ocfs2/dlm/dlmdebug.c: fix a sleep-in-atomic-context bug in dlm_print_one_mle()
	mm/page-writeback.c: fix range_cyclic writeback vs writepages deadlock
	tools/testing/selftests/vm/gup_benchmark.c: fix 'write' flag usage
	mm: thp: fix MADV_DONTNEED vs migrate_misplaced_transhuge_page race condition
	macsec: update operstate when lower device changes
	macsec: let the administrator set UP state even if lowerdev is down
	block: fix the DISCARD request merge
	i2c: uniphier-f: make driver robust against concurrency
	i2c: uniphier-f: fix occasional timeout error
	i2c: uniphier-f: fix race condition when IRQ is cleared
	um: Make line/tty semantics use true write IRQ
	vfs: avoid problematic remapping requests into partial EOF block
	ipv4/igmp: fix v1/v2 switchback timeout based on rfc3376, 8.12
	powerpc/xmon: Relax frame size for clang
	selftests/powerpc/ptrace: Fix out-of-tree build
	selftests/powerpc/signal: Fix out-of-tree build
	selftests/powerpc/switch_endian: Fix out-of-tree build
	selftests/powerpc/cache_shape: Fix out-of-tree build
	block: call rq_qos_exit() after queue is frozen
	mm/gup_benchmark.c: prevent integer overflow in ioctl
	linux/bitmap.h: handle constant zero-size bitmaps correctly
	linux/bitmap.h: fix type of nbits in bitmap_shift_right()
	lib/bitmap.c: fix remaining space computation in bitmap_print_to_pagebuf
	hfsplus: fix BUG on bnode parent update
	hfs: fix BUG on bnode parent update
	hfsplus: prevent btree data loss on ENOSPC
	hfs: prevent btree data loss on ENOSPC
	hfsplus: fix return value of hfsplus_get_block()
	hfs: fix return value of hfs_get_block()
	hfsplus: update timestamps on truncate()
	hfs: update timestamp on truncate()
	fs/hfs/extent.c: fix array out of bounds read of array extent
	kernel/panic.c: do not append newline to the stack protector panic string
	mm/memory_hotplug: make add_memory() take the device_hotplug_lock
	mm/memory_hotplug: fix online/offline_pages called w.o. mem_hotplug_lock
	powerpc/powernv: hold device_hotplug_lock when calling device_online()
	igb: shorten maximum PHC timecounter update interval
	fm10k: ensure completer aborts are marked as non-fatal after a resume
	net: hns3: bugfix for buffer not free problem during resetting
	net: hns3: bugfix for reporting unknown vector0 interrupt repeatly problem
	net: hns3: bugfix for is_valid_csq_clean_head()
	net: hns3: bugfix for hclge_mdio_write and hclge_mdio_read
	ntb_netdev: fix sleep time mismatch
	ntb: intel: fix return value for ndev_vec_mask()
	irq/matrix: Fix memory overallocation
	nvme-pci: fix conflicting p2p resource adds
	arm64: makefile fix build of .i file in external module case
	tools/power turbosat: fix AMD APIC-id output
	mm: handle no memcg case in memcg_kmem_charge() properly
	ocfs2: without quota support, avoid calling quota recovery
	ocfs2: don't use iocb when EIOCBQUEUED returns
	ocfs2: don't put and assigning null to bh allocated outside
	ocfs2: fix clusters leak in ocfs2_defrag_extent()
	net: do not abort bulk send on BQL status
	sched/topology: Fix off by one bug
	sched/fair: Don't increase sd->balance_interval on newidle balance
	openvswitch: fix linking without CONFIG_NF_CONNTRACK_LABELS
	ARM: dts: imx6sx-sdb: Fix enet phy regulator
	clk: sunxi-ng: enable so-said LDOs for A64 SoC's pll-mipi clock
	soc: bcm: brcmstb: Fix re-entry point with a THUMB2_KERNEL
	audit: print empty EXECVE args
	sock_diag: fix autoloading of the raw_diag module
	net: bpfilter: fix iptables failure if bpfilter_umh is disabled
	nds32: Fix bug in bitfield.h
	media: ov13858: Check for possible null pointer
	btrfs: avoid link error with CONFIG_NO_AUTO_INLINE
	wil6210: fix debugfs memory access alignment
	wil6210: fix L2 RX status handling
	wil6210: fix RGF_CAF_ICR address for Talyn-MB
	wil6210: fix locking in wmi_call
	ath10k: snoc: fix unbalanced clock error handling
	wlcore: Fix the return value in case of error in 'wlcore_vendor_cmd_smart_config_start()'
	rtl8xxxu: Fix missing break in switch
	brcmsmac: never log "tid x is not agg'able" by default
	wireless: airo: potential buffer overflow in sprintf()
	rtlwifi: rtl8192de: Fix misleading REG_MCUFWDL information
	net: dsa: bcm_sf2: Turn on PHY to allow successful registration
	scsi: mpt3sas: Fix Sync cache command failure during driver unload
	scsi: mpt3sas: Don't modify EEDPTagMode field setting on SAS3.5 HBA devices
	scsi: mpt3sas: Fix driver modifying persistent data in Manufacturing page11
	scsi: megaraid_sas: Fix msleep granularity
	scsi: megaraid_sas: Fix goto labels in error handling
	scsi: lpfc: fcoe: Fix link down issue after 1000+ link bounces
	scsi: lpfc: Fix odd recovery in duplicate FLOGIs in point-to-point
	scsi: lpfc: Correct loss of fc4 type on remote port address change
	usb: typec: tcpm: charge current handling for sink during hard reset
	dlm: fix invalid free
	dlm: don't leak kernel pointer to userspace
	vrf: mark skb for multicast or link-local as enslaved to VRF
	clk: tegra20: Turn EMC clock gate into divider
	ACPICA: Use %d for signed int print formatting instead of %u
	net: bcmgenet: return correct value 'ret' from bcmgenet_power_down
	of: unittest: allow base devicetree to have symbol metadata
	of: unittest: initialize args before calling of_*parse_*()
	tools: bpftool: pass an argument to silence open_obj_pinned()
	cfg80211: Prevent regulatory restore during STA disconnect in concurrent interfaces
	pinctrl: qcom: spmi-gpio: fix gpio-hog related boot issues
	pinctrl: bcm2835: Use define directive for BCM2835_PINCONF_PARAM_PULL
	pinctrl: lpc18xx: Use define directive for PIN_CONFIG_GPIO_PIN_INT
	pinctrl: zynq: Use define directive for PIN_CONFIG_IO_STANDARD
	PCI: keystone: Use quirk to limit MRRS for K2G
	nvme-pci: fix surprise removal
	spi: omap2-mcspi: Fix DMA and FIFO event trigger size mismatch
	i2c: uniphier-f: fix timeout error after reading 8 bytes
	mm/memory_hotplug: Do not unlock when fails to take the device_hotplug_lock
	ipv6: Fix handling of LLA with VRF and sockets bound to VRF
	cfg80211: call disconnect_wk when AP stops
	mm/page_io.c: do not free shared swap slots
	Bluetooth: Fix invalid-free in bcsp_close()
	KVM: MMU: Do not treat ZONE_DEVICE pages as being reserved
	ath10k: Fix a NULL-ptr-deref bug in ath10k_usb_alloc_urb_from_pipe
	ath9k_hw: fix uninitialized variable data
	md/raid10: prevent access of uninitialized resync_pages offset
	mm/memory_hotplug: don't access uninitialized memmaps in shrink_zone_span()
	net: phy: dp83867: fix speed 10 in sgmii mode
	net: phy: dp83867: increase SGMII autoneg timer duration
	ocfs2: remove ocfs2_is_o2cb_active()
	ARM: 8904/1: skip nomap memblocks while finding the lowmem/highmem boundary
	ARC: perf: Accommodate big-endian CPU
	x86/insn: Fix awk regexp warnings
	x86/speculation: Fix incorrect MDS/TAA mitigation status
	x86/speculation: Fix redundant MDS mitigation message
	nbd: prevent memory leak
	y2038: futex: Move compat implementation into futex.c
	futex: Prevent robust futex exit race
	ALSA: usb-audio: Fix NULL dereference at parsing BADD
	nfc: port100: handle command failure cleanly
	media: vivid: Set vid_cap_streaming and vid_out_streaming to true
	media: vivid: Fix wrong locking that causes race conditions on streaming stop
	media: usbvision: Fix races among open, close, and disconnect
	cpufreq: Add NULL checks to show() and store() methods of cpufreq
	media: uvcvideo: Fix error path in control parsing failure
	media: b2c2-flexcop-usb: add sanity checking
	media: cxusb: detect cxusb_ctrl_msg error in query
	media: imon: invalid dereference in imon_touch_event
	virtio_ring: fix return code on DMA mapping fails
	USBIP: add config dependency for SGL_ALLOC
	usbip: tools: fix fd leakage in the function of read_attr_usbip_status
	usbip: Fix uninitialized symbol 'nents' in stub_recv_cmd_submit()
	usb-serial: cp201x: support Mark-10 digital force gauge
	USB: chaoskey: fix error case of a timeout
	appledisplay: fix error handling in the scheduled work
	USB: serial: mos7840: add USB ID to support Moxa UPort 2210
	USB: serial: mos7720: fix remote wakeup
	USB: serial: mos7840: fix remote wakeup
	USB: serial: option: add support for DW5821e with eSIM support
	USB: serial: option: add support for Foxconn T77W968 LTE modules
	staging: comedi: usbduxfast: usbduxfast_ai_cmdtest rounding error
	powerpc/64s: support nospectre_v2 cmdline option
	powerpc/book3s64: Fix link stack flush on context switch
	KVM: PPC: Book3S HV: Flush link stack on guest exit to host kernel
	PM / devfreq: Fix kernel oops on governor module load
	Linux 4.19.87

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Id8c8d4cd92227f8f46c48c05440e09da957fa687
2019-12-01 09:53:43 +01:00
Ming Lei
9663d294ae block: call rq_qos_exit() after queue is frozen
[ Upstream commit c57cdf7a9e51d97a43e29b8f4a04157875104000 ]

rq_qos_exit() removes the current q->rq_qos, this action has to be
done after queue is frozen, otherwise the IO queue path may never
be waken up, then IO hang is caused.

So fixes this issue by moving rq_qos_exit() after queue is frozen.

Cc: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-12-01 09:17:06 +01:00
Jianchao Wang
10807b3746 block: fix the DISCARD request merge
[ Upstream commit 69840466086d2248898020a08dda52732686c4e6 ]

There are two cases when handle DISCARD merge.
If max_discard_segments == 1, the bios/requests need to be contiguous
to merge. If max_discard_segments > 1, it takes every bio as a range
and different range needn't to be contiguous.

But now, attempt_merge screws this up. It always consider contiguity
for DISCARD for the case max_discard_segments > 1 and cannot merge
contiguous DISCARD for the case max_discard_segments == 1, because
rq_attempt_discard_merge always returns false in this case.
This patch fixes both of the two cases above.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jianchao Wang <jianchao.w.wang@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-12-01 09:17:03 +01:00
Greg Kroah-Hartman
44b82a3d1b This is the 4.19.85 stable release
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Merge 4.19.85 into android-4.19

Changes in 4.19.85
	KVM: x86: introduce is_pae_paging
	MIPS: BCM63XX: fix switch core reset on BCM6368
	scsi: core: Handle drivers which set sg_tablesize to zero
	ax88172a: fix information leak on short answers
	ipmr: Fix skb headroom in ipmr_get_route().
	net: gemini: add missed free_netdev
	net: usb: qmi_wwan: add support for Foxconn T77W968 LTE modules
	slip: Fix memory leak in slip_open error path
	ALSA: usb-audio: Fix missing error check at mixer resolution test
	ALSA: usb-audio: not submit urb for stopped endpoint
	ALSA: usb-audio: Fix incorrect NULL check in create_yamaha_midi_quirk()
	ALSA: usb-audio: Fix incorrect size check for processing/extension units
	Btrfs: fix log context list corruption after rename exchange operation
	Input: ff-memless - kill timer in destroy()
	Input: synaptics-rmi4 - fix video buffer size
	Input: synaptics-rmi4 - disable the relative position IRQ in the F12 driver
	Input: synaptics-rmi4 - do not consume more data than we have (F11, F12)
	Input: synaptics-rmi4 - clear IRQ enables for F54
	Input: synaptics-rmi4 - destroy F54 poller workqueue when removing
	IB/hfi1: Ensure full Gen3 speed in a Gen4 system
	IB/hfi1: Use a common pad buffer for 9B and 16B packets
	i2c: acpi: Force bus speed to 400KHz if a Silead touchscreen is present
	ecryptfs_lookup_interpose(): lower_dentry->d_inode is not stable
	ecryptfs_lookup_interpose(): lower_dentry->d_parent is not stable either
	net: ethernet: dwmac-sun8i: Use the correct function in exit path
	iommu/vt-d: Fix QI_DEV_IOTLB_PFSID and QI_DEV_EIOTLB_PFSID macros
	mm: mempolicy: fix the wrong return value and potential pages leak of mbind
	mm: memcg: switch to css_tryget() in get_mem_cgroup_from_mm()
	mm: hugetlb: switch to css_tryget() in hugetlb_cgroup_charge_cgroup()
	mmc: sdhci-of-at91: fix quirk2 overwrite
	iio: adc: max9611: explicitly cast gain_selectors
	tee: optee: take DT status property into account
	ath10k: fix kernel panic by moving pci flush after napi_disable
	iio: dac: mcp4922: fix error handling in mcp4922_write_raw
	clk: sunxi-ng: h6: fix PWM gate/reset offset
	soundwire: Initialize completion for defer messages
	soundwire: intel: Fix uninitialized adev deref
	arm64: dts: allwinner: a64: Orange Pi Win: Fix SD card node
	arm64: dts: allwinner: a64: Olinuxino: fix DRAM voltage
	arm64: dts: allwinner: a64: NanoPi-A64: Fix DCDC1 voltage
	ALSA: pcm: signedness bug in snd_pcm_plug_alloc()
	soc/tegra: pmc: Fix pad voltage configuration for Tegra186
	arm64: dts: tegra210-p2180: Correct sdmmc4 vqmmc-supply
	y2038: make do_gettimeofday() and get_seconds() inline
	ARM: dts: rcar: Correct SATA device sizes to 2 MiB
	ARM: dts: at91/trivial: Fix USART1 definition for at91sam9g45
	rtc: sysfs: fix NULL check in rtc_add_groups()
	rtc: rv8803: fix the rv8803 id in the OF table
	remoteproc/davinci: Use %zx for formating size_t
	extcon: cht-wc: Return from default case to avoid warnings
	cfg80211: Avoid regulatory restore when COUNTRY_IE_IGNORE is set
	ALSA: seq: Do error checks at creating system ports
	ath10k: skip resetting rx filter for WCN3990
	ath9k: fix tx99 with monitor mode interface
	wil6210: drop Rx multicast packets that are looped-back to STA
	wil6210: set edma variables only for Talyn-MB devices
	wil6210: prevent usage of tx ring 0 for eDMA
	wil6210: fix invalid memory access for rx_buff_mgmt debugfs
	ath10k: limit available channels via DT ieee80211-freq-limit
	ice: Update request resource command to latest specification
	ice: Prevent control queue operations during reset
	gfs2: Don't set GFS2_RDF_UPTODATE when the lvb is updated
	ice: Fix and update driver version string
	ASoC: dapm: Don't fail creating new DAPM control on NULL pinctrl
	ASoC: dpcm: Properly initialise hw->rate_max
	ASoC: meson: axg-fifo: report interrupt request failure
	ASoC: AMD: Change MCLK to 48Mhz
	pinctrl: ingenic: Probe driver at subsys_initcall
	MIPS: BCM47XX: Enable USB power on Netgear WNDR3400v3
	ARM: dts: exynos: Use i2c-gpio for HDMI-DDC on Arndale
	ARM: dts: exynos: Fix HDMI-HPD line handling on Arndale
	ARM: dts: exynos: Fix sound in Snow-rev5 Chromebook
	liquidio: fix race condition in instruction completion processing
	arm64: dts: stratix10: i2c clock running out of spec
	ARM: dts: exynos: Fix regulators configuration on Peach Pi/Pit Chromebooks
	i40evf: Validate the number of queues a PF sends
	i40e: use correct length for strncpy
	i40evf: set IFF_UNICAST_FLT flag for the VF
	i40e: Check and correct speed values for link on open
	i40evf: Don't enable vlan stripping when rx offload is turned on
	i40e: hold the rtnl lock on clearing interrupt scheme
	i40evf: cancel workqueue sync for adminq when a VF is removed
	i40e: Prevent deleting MAC address from VF when set by PF
	IB/rxe: avoid back-to-back retries
	IB/rxe: fixes for rdma read retry
	iwlwifi: drop packets with bad status in CD
	iwlwifi: don't WARN on trying to dump dead firmware
	iwlwifi: mvm: avoid sending too many BARs
	media: vicodec: fix out-of-range values when decoding
	media: i2c: Fix pm_runtime_get_if_in_use() usage in sensor drivers
	media: ov772x: Disable clk on error path
	ARM: dts: pxa: fix the rtc controller
	ARM: dts: pxa: fix power i2c base address
	rtl8187: Fix warning generated when strncpy() destination length matches the sixe argument
	mwifiex: do no submit URB in suspended state
	mwifex: free rx_cmd skb in suspended state
	brcmfmac: fix wrong strnchr usage
	mt76: Fix comparisons with invalid hardware key index
	soc: imx: gpc: fix PDN delay
	ASoC: rsnd: ssi: Fix issue in dma data address assignment
	net: hns3: Fix for multicast failure
	net: hns3: Fix error of checking used vlan id
	net: hns3: Fix for loopback selftest failed problem
	net: hns3: Change the dst mac addr of loopback packet
	net/mlx5: Fix atomic_mode enum values
	net: phy: mscc: read 'vsc8531,vddmac' as an u32
	net: phy: mscc: read 'vsc8531, edge-slowdown' as an u32
	ARM: dts: meson8: fix the clock controller register size
	ARM: dts: meson8b: fix the clock controller register size
	mtd: rawnand: marvell: use regmap_update_bits() for syscon access
	mtd: rawnand: fsl_ifc: check result of SRAM initialization
	mtd: rawnand: fsl_ifc: fixup SRAM init for newer ctrl versions
	mtd: rawnand: qcom: don't include dma-direct.h
	IB/mlx5: Change TX affinity assignment in RoCE LAG mode
	qxl: fix null-pointer crash during suspend
	mac80211: fix saving a few HE values
	cfg80211: validate wmm rule when setting
	f2fs: avoid wrong decrypted data from disk
	net: lan78xx: Bail out if lan78xx_get_endpoints fails
	rtnetlink: move type calculation out of loop
	ASoC: sgtl5000: avoid division by zero if lo_vag is zero
	ath10k: avoid possible memory access violation
	ARM: dts: exynos: Disable pull control for S5M8767 PMIC
	ath10k: wmi: disable softirq's while calling ieee80211_rx
	i2c: mediatek: Use DMA safe buffers for i2c transactions
	IB/mlx5: Don't hold spin lock while checking device state
	IB/ipoib: Ensure that MTU isn't less than minimum permitted
	RDMA/core: Rate limit MAD error messages
	RDMA/core: Follow correct unregister order between sysfs and cgroup
	mips: txx9: fix iounmap related issue
	udf: Fix crash during mount
	ASoC: dapm: Avoid uninitialised variable warning
	ASoC: Intel: hdac_hdmi: Limit sampling rates at dai creation
	ata: Disable AHCI ALPM feature for Ampere Computing eMAG SATA
	of: make PowerMac cache node search conditional on CONFIG_PPC_PMAC
	ARM: dts: omap3-gta04: give spi_lcd node a label so that we can overwrite in other DTS files
	ARM: dts: omap3-gta04: fixes for tvout / venc
	ARM: dts: omap3-gta04: tvout: enable as display1 alias
	ARM: dts: omap3-gta04: fix touchscreen tsc2007
	ARM: dts: omap3-gta04: make NAND partitions compatible with recent U-Boot
	ARM: dts: omap3-gta04: keep vpll2 always on
	f2fs: submit bio after shutdown
	failover: Fix error return code in net_failover_create
	sched/debug: Explicitly cast sched_feat() to bool
	sched/debug: Use symbolic names for task state constants
	firmware: arm_scmi: use strlcpy to ensure NULL-terminated strings
	arm64: dts: rockchip: Fix VCC5V0_HOST_EN on rk3399-sapphire
	ARM: dts: exynos: Disable pull control for PMIC IRQ line on Artik5 board
	usb: mtu3: disable vbus rise/fall interrupts of ltssm
	dmaengine: dma-jz4780: Don't depend on MACH_JZ4780
	dmaengine: dma-jz4780: Further residue status fix
	EDAC, sb_edac: Return early on ADDRV bit and address type test
	rtc: mt6397: fix possible race condition
	rtc: pl030: fix possible race condition
	ath9k: add back support for using active monitor interfaces for tx99
	dmaengine: at_xdmac: remove a stray bottom half unlock
	RDMA/hns: Fix an error code in hns_roce_v2_init_eq_table()
	IB/hfi1: Missing return value in error path for user sdma
	signal: Always ignore SIGKILL and SIGSTOP sent to the global init
	signal: Properly deliver SIGILL from uprobes
	signal: Properly deliver SIGSEGV from x86 uprobes
	f2fs: fix memory leak of write_io in fill_super()
	f2fs: fix memory leak of percpu counter in fill_super()
	f2fs: fix setattr project check upon fssetxattr ioctl
	scsi: qla2xxx: Use correct qpair for ABTS/CMD
	scsi: qla2xxx: Fix iIDMA error
	scsi: qla2xxx: Defer chip reset until target mode is enabled
	scsi: qla2xxx: Terminate Plogi/PRLI if WWN is 0
	scsi: qla2xxx: Fix deadlock between ATIO and HW lock
	scsi: qla2xxx: Increase abort timeout value
	scsi: qla2xxx: Check for Register disconnect
	scsi: qla2xxx: Fix port speed display on chip reset
	scsi: qla2xxx: Fix dropped srb resource.
	scsi: qla2xxx: Fix duplicate switch's Nport ID entries
	scsi: lpfc: Fix GFT_ID and PRLI logic for RSCN
	scsi: lpfc: Correct invalid EQ doorbell write on if_type=6
	scsi: lpfc: Fix errors in log messages.
	scsi: sym53c8xx: fix NULL pointer dereference panic in sym_int_sir()
	ARM: imx6: register pm_power_off handler if "fsl,pmic-stby-poweroff" is set
	scsi: pm80xx: Corrected dma_unmap_sg() parameter
	scsi: pm80xx: Fixed system hang issue during kexec boot
	kprobes: Don't call BUG_ON() if there is a kprobe in use on free list
	net: aquantia: fix hw_atl_utils_fw_upload_dwords
	Drivers: hv: vmbus: Fix synic per-cpu context initialization
	nvmem: core: return error code instead of NULL from nvmem_device_get
	media: dt-bindings: adv748x: Fix decimal unit addresses
	ALSA: hda: Fix implicit definition of pci_iomap() on SH
	media: fix: media: pci: meye: validate offset to avoid arbitrary access
	media: dvb: fix compat ioctl translation
	net: bcmgenet: Fix speed selection for reverse MII
	arm64: dts: meson: libretech: update board model
	arm64: dts: meson-axg: use the proper compatible for ethmac
	ALSA: intel8x0m: Register irq handler after register initializations
	arm64: dts: renesas: salvator-common: adv748x: Override secondary addresses
	arm64: dts: renesas: r8a77965: Attach the SYS-DMAC to the IPMMU
	arm64: dts: renesas: r8a77965: Fix HS-USB compatible
	arm64: dts: renesas: r8a77965: Fix clock/reset for usb2_phy1
	pinctrl: at91-pio4: fix has_config check in atmel_pctl_dt_subnode_to_map()
	llc: avoid blocking in llc_sap_close()
	ARM: dts: qcom: ipq4019: fix cpu0's qcom,saw2 reg value
	soc: qcom: geni: Don't ignore clk_round_rate() errors in geni_se_clk_tbl_get()
	soc: qcom: geni: geni_se_clk_freq_match() should always accept multiples
	soc: qcom: wcnss_ctrl: Avoid string overflow
	soc: qcom: apr: Avoid string overflow
	drivers: qcom: rpmh-rsc: clear wait_for_compl after use
	arm64: dts: broadcom: Fix I2C and SPI bus warnings
	ARM: dts: bcm: Fix SPI bus warnings
	ARM: dts: aspeed: Fix I2C bus warnings
	powerpc/vdso: Correct call frame information
	ARM: dts: socfpga: Fix I2C bus unit-address error
	ARM: dts: sunxi: Fix I2C bus warnings
	pinctrl: at91: don't use the same irqchip with multiple gpiochips
	ARM: dts: sun9i: Fix I2C bus warnings
	android: binder: no outgoing transaction when thread todo has transaction
	cxgb4: Fix endianness issue in t4_fwcache()
	arm64: fix for bad_mode() handler to always result in panic
	block, bfq: inject other-queue I/O into seeky idle queues on NCQ flash
	blok, bfq: do not plug I/O if all queues are weight-raised
	arm64: dts: meson: Fix erroneous SPI bus warnings
	power: supply: ab8500_fg: silence uninitialized variable warnings
	power: reset: at91-poweroff: do not procede if at91_shdwc is allocated
	power: supply: max8998-charger: Fix platform data retrieval
	component: fix loop condition to call unbind() if bind() fails
	kernfs: Fix range checks in kernfs_get_target_path
	ip_gre: fix parsing gre header in ipgre_err
	scsi: ufshcd: Fix NULL pointer dereference for in ufshcd_init
	ARM: dts: rockchip: Fix erroneous SPI bus dtc warnings on rk3036
	arm64: dts: rockchip: Fix I2C bus unit-address error on rk3399-puma-haikou
	ACPI / LPSS: Exclude I2C busses shared with PUNIT from pmc_atom_d3_mask
	netfilter: nf_tables: avoid BUG_ON usage
	ath9k: Fix a locking bug in ath9k_add_interface()
	s390/qeth: uninstall IRQ handler on device removal
	s390/qeth: invoke softirqs after napi_schedule()
	media: vsp1: Fix vsp1_regs.h license header
	media: vsp1: Fix YCbCr planar formats pitch calculation
	media: ov2680: don't register the v4l2 subdevice before checking chip ID
	PCI/ACPI: Correct error message for ASPM disabling
	net: socionext: Fix two sleep-in-atomic-context bugs in ave_rxfifo_reset()
	PCI: mediatek: Fix unchecked return value
	ARM: dts: xilinx: Fix I2C and SPI bus warnings
	serial: uartps: Fix suspend functionality
	serial: samsung: Enable baud clock for UART reset procedure in resume
	serial: mxs-auart: Fix potential infinite loop
	tty: serial: qcom_geni_serial: Fix serial when not used as console
	arm64: dts: ti: k3-am65: Change #address-cells and #size-cells of interconnect to 2
	samples/bpf: fix a compilation failure
	spi/bcm63xx-hsspi: keep pll clk enabled
	spi: mediatek: Don't modify spi_transfer when transfer.
	ASoC: rt5682: Fix the boost volume at the begining of playback
	ipmi_si_pci: fix NULL device in ipmi_si error message
	ipmi_si: fix potential integer overflow on large shift
	ipmi:dmi: Ignore IPMI SMBIOS entries with a zero base address
	ipmi: fix return value of ipmi_set_my_LUN
	net: hns3: fix return type of ndo_start_xmit function
	net: cavium: fix return type of ndo_start_xmit function
	net: ibm: fix return type of ndo_start_xmit function
	powerpc/iommu: Avoid derefence before pointer check
	selftests/powerpc: Do not fail with reschedule
	powerpc/64s/hash: Fix stab_rr off by one initialization
	powerpc/pseries/memory-hotplug: Only update DT once per memory DLPAR request
	powerpc/pseries: Disable CPU hotplug across migrations
	powerpc: Fix duplicate const clang warning in user access code
	RDMA/i40iw: Fix incorrect iterator type
	ARM: dts: atmel: Fix I2C and SPI bus warnings
	OPP: Protect dev_list with opp_table lock
	of/unittest: Fix I2C bus unit-address error
	libfdt: Ensure INT_MAX is defined in libfdt_env.h
	power: supply: twl4030_charger: fix charging current out-of-bounds
	power: supply: twl4030_charger: disable eoc interrupt on linear charge
	net: mvpp2: fix the number of queues per cpu for PPv2.2
	net: marvell: fix return type of ndo_start_xmit function
	net: toshiba: fix return type of ndo_start_xmit function
	net: xilinx: fix return type of ndo_start_xmit function
	net: broadcom: fix return type of ndo_start_xmit function
	net: amd: fix return type of ndo_start_xmit function
	net: sun: fix return type of ndo_start_xmit function
	net: hns3: Fix for setting speed for phy failed problem
	net: hns3: Fix cmdq registers initialization issue for vf
	net: hns3: Clear client pointer when initialize client failed or unintialize finished
	net: hns3: Fix client initialize state issue when roce client initialize failed
	net: hns3: Fix parameter type for q_id in hclge_tm_q_to_qs_map_cfg()
	nfp: provide a better warning when ring allocation fails
	usb: chipidea: imx: enable OTG overcurrent in case USB subsystem is already started
	usb: chipidea: Fix otg event handler
	usb: usbtmc: Fix ioctl USBTMC_IOCTL_ABORT_BULK_OUT
	s390/zcrypt: enable AP bus scan without a valid default domain
	s390/vdso: avoid 64-bit vdso mapping for compat tasks
	s390/vdso: correct CFI annotations of vDSO functions
	brcmfmac: increase buffer for obtaining firmware capabilities
	brcmsmac: Use kvmalloc() for ucode allocations
	mlxsw: spectrum: Init shaper for TCs 8..15
	PCI: portdrv: Initialize service drivers directly
	ARM: dts: am335x-evm: fix number of cpsw
	ARM: dts: ti: Fix SPI and I2C bus warnings
	f2fs: avoid infinite loop in f2fs_alloc_nid
	f2fs: fix to recover inode's uid/gid during POR
	ARM: dts: ux500: Correct SCU unit address
	ARM: dts: ux500: Fix LCDA clock line muxing
	ARM: dts: ste: Fix SPI controller node names
	spi: pic32: Use proper enum in dmaengine_prep_slave_rg
	crypto: chacha20 - Fix chacha20_block() keystream alignment (again)
	cpufeature: avoid warning when compiling with clang
	crypto: arm/crc32 - avoid warning when compiling with Clang
	ARM: dts: marvell: Fix SPI and I2C bus warnings
	x86/mce-inject: Reset injection struct after injection
	ARM: dts: stm32: enable display on stm32mp157c-ev1 board
	ARM: dts: clearfog: fix sdhci supply property name
	ARM: dts: stm32: Fix SPI controller node names
	bnx2x: Ignore bandwidth attention in single function mode
	PCI/AER: Take reference on error devices
	PCI/AER: Don't read upstream ports below fatal errors
	PCI/ERR: Use slot reset if available
	samples/bpf: fix compilation failure
	net: phy: mdio-bcm-unimac: Allow configuring MDIO clock divider
	net: micrel: fix return type of ndo_start_xmit function
	net: freescale: fix return type of ndo_start_xmit function
	x86/CPU: Use correct macros for Cyrix calls
	x86/CPU: Change query logic so CPUID is enabled before testing
	EDAC: Correct DIMM capacity unit symbol
	MIPS: kexec: Relax memory restriction
	arm64: dts: rockchip: Fix microSD in rk3399 sapphire board
	mlxsw: Make MLXSW_SP1_FWREV_MINOR a hard requirement
	media: imx: work around false-positive warning, again
	media: pci: ivtv: Fix a sleep-in-atomic-context bug in ivtv_yuv_init()
	media: au0828: Fix incorrect error messages
	media: davinci: Fix implicit enum conversion warning
	ARM: dts: rockchip: explicitly set vcc_sd0 pin to gpio on rk3188-radxarock
	usb: gadget: uvc: configfs: Drop leaked references to config items
	usb: gadget: uvc: configfs: Prevent format changes after linking header
	usb: gadget: uvc: configfs: Sort frame intervals upon writing
	ARM: dts: exynos: Correct audio subsystem parent clock on Peach Chromebooks
	i2c: aspeed: fix invalid clock parameters for very large divisors
	gpiolib: Fix gpio_direction_* for single direction GPIOs
	ARM: at91: pm: call put_device instead of of_node_put in at91_pm_config_ws
	phy: brcm-sata: allow PHY_BRCM_SATA driver to be built for DSL SoCs
	phy: renesas: rcar-gen3-usb2: fix vbus_ctrl for role sysfs
	phy: phy-twl4030-usb: fix denied runtime access
	ARM: dts: imx6ull: update vdd_soc voltage for 900MHz operating point
	usb: gadget: uvc: Factor out video USB request queueing
	usb: gadget: uvc: Only halt video streaming endpoint in bulk mode
	coresight: Use ERR_CAST instead of ERR_PTR
	coresight: Fix handling of sinks
	coresight: perf: Fix per cpu path management
	coresight: perf: Disable trace path upon source error
	coresight: tmc-etr: Handle driver mode specific ETR buffers
	coresight: etm4x: Configure EL2 exception level when kernel is running in HYP
	coresight: tmc: Fix byte-address alignment for RRP
	coresight: dynamic-replicator: Handle multiple connections
	slimbus: ngd: register ngd driver only once.
	slimbus: ngd: return proper error code instead of zero
	silmbus: ngd: register controller after power up.
	misc: kgdbts: Fix restrict error
	misc: genwqe: should return proper error value.
	vmbus: keep pointer to ring buffer page
	vfio/pci: Fix potential memory leak in vfio_msi_cap_len
	vfio/pci: Mask buggy SR-IOV VF INTx support
	iw_cxgb4: Use proper enumerated type in c4iw_bar2_addrs
	scsi: libsas: always unregister the old device if going to discover new
	f2fs: fix remount problem of option io_bits
	phy: lantiq: Fix compile warning
	arm64: dts: fsl: Fix I2C and SPI bus warnings
	ARM: dts: imx51-zii-rdu1: Fix the rtc compatible string
	arm64: tegra: I2C on Tegra194 is not compatible with Tegra114
	ARM: dts: tegra30: fix xcvr-setup-use-fuses
	ARM: dts: tegra20: restore address order
	ARM: tegra: apalis_t30: fix mmc1 cmd pull-up
	ARM: tegra: apalis_t30: fix mcp2515 can controller interrupt polarity
	ARM: tegra: colibri_t30: fix mcp2515 can controller interrupt polarity
	ARM: dts: paz00: fix wakeup gpio keycode
	net: smsc: fix return type of ndo_start_xmit function
	net: faraday: fix return type of ndo_start_xmit function
	PCI/ERR: Run error recovery callbacks for all affected devices
	f2fs: update i_size after DIO completion
	f2fs: fix to recover inode's project id during POR
	f2fs: mark inode dirty explicitly in recover_inode()
	RDMA: Fix dependencies for rdma_user_mmap_io
	EDAC: Raise the maximum number of memory controllers
	ARM: dts: realview: Fix SPI controller node names
	firmware: dell_rbu: Make payload memory uncachable
	Bluetooth: hci_serdev: clear HCI_UART_PROTO_READY to avoid closing proto races
	Bluetooth: L2CAP: Detect if remote is not able to use the whole MPS
	Bluetooth: btrsi: fix bt tx timeout issue
	x86/hyperv: Suppress "PCI: Fatal: No config space access function found"
	crypto: s5p-sss: Fix race in error handling
	crypto: s5p-sss: Fix Fix argument list alignment
	crypto: fix a memory leak in rsa-kcs1pad's encryption mode
	iwlwifi: dbg: don't crash if the firmware crashes in the middle of a debug dump
	iwlwifi: fix non_shared_ant for 22000 devices
	iwlwifi: pcie: read correct prph address for newer devices
	iwlwifi: api: annotate compressed BA notif array sizes
	iwlwifi: pcie: gen2: build A-MSDU only for GSO
	iwlwifi: pcie: fit reclaim msg to MAX_MSG_LEN
	iwlwifi: mvm: use correct FIFO length
	iwlwifi: mvm: Allow TKIP for AP mode
	scsi: NCR5380: Clear all unissued commands on host reset
	scsi: NCR5380: Have NCR5380_select() return a bool
	scsi: NCR5380: Withhold disconnect privilege for REQUEST SENSE
	scsi: NCR5380: Use DRIVER_SENSE to indicate valid sense data
	scsi: NCR5380: Check for invalid reselection target
	scsi: NCR5380: Don't clear busy flag when abort fails
	scsi: NCR5380: Don't call dsprintk() following reselection interrupt
	scsi: NCR5380: Handle BUS FREE during reselection
	scsi: NCR5380: Check for bus reset
	arm64: dts: amd: Fix SPI bus warnings
	arm64: dts: lg: Fix SPI controller node names
	ARM: dts: lpc32xx: Fix SPI controller node names
	rtc: isl1208: avoid possible sysfs race
	rtc: tx4939: fixup nvmem name and register size
	rtc: armada38x: fix possible race condition
	netfilter: masquerade: don't flush all conntracks if only one address deleted on device
	usb: xhci-mtk: fix ISOC error when interval is zero
	usb: usbtmc: uninitialized symbol 'actual' in usbtmc_ioctl_clear
	fuse: use READ_ONCE on congestion_threshold and max_background
	IB/iser: Fix possible NULL deref at iser_inv_desc()
	media: ov2680: fix null dereference at power on
	s390/vdso: correct vdso mapping for compat tasks
	net: phy: mdio-bcm-unimac: mark PM functions as __maybe_unused
	memfd: Use radix_tree_deref_slot_protected to avoid the warning.
	slcan: Fix memory leak in error path
	Linux 4.19.85

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I0857e66ee2cdd412cd736548a1395bf764a8ab0a
2019-11-20 20:43:17 +01:00
Paolo Valente
89f4d27c1b blok, bfq: do not plug I/O if all queues are weight-raised
[ Upstream commit c8765de0adfcaaf4ffb2d951e07444f00ffa9453 ]

To reduce latency for interactive and soft real-time applications, bfq
privileges the bfq_queues containing the I/O of these
applications. These privileged queues, referred-to as weight-raised
queues, get a much higher share of the device throughput
w.r.t. non-privileged queues. To preserve this higher share, the I/O
of any non-weight-raised queue must be plugged whenever a sync
weight-raised queue, while being served, remains temporarily empty. To
attain this goal, bfq simply plugs any I/O (from any queue), if a sync
weight-raised queue remains empty while in service.

Unfortunately, this plugging typically lowers throughput with random
I/O, on devices with internal queueing (because it reduces the filling
level of the internal queues of the device).

This commit addresses this issue by restricting the cases where
plugging is performed: if a sync weight-raised queue remains empty
while in service, then I/O plugging is performed only if some of the
active bfq_queues are *not* weight-raised (which is actually the only
circumstance where plugging is needed to preserve the higher share of
the throughput of weight-raised queues). This restriction proved able
to boost throughput in really many use cases needing only maximum
throughput.

Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-11-20 18:46:44 +01:00
Paolo Valente
6c9a79651b block, bfq: inject other-queue I/O into seeky idle queues on NCQ flash
[ Upstream commit d0edc2473be9d70f999282e1ca7863ad6ae704dc ]

The Achilles' heel of BFQ is its failing to reach a high throughput
with sync random I/O on flash storage with internal queueing, in case
the processes doing I/O have differentiated weights.

The cause of this failure is as follows. If at least two processes do
sync I/O, and have a different weight from each other, then BFQ plugs
I/O dispatching every time one of these processes, while it is being
served, remains temporarily without pending I/O requests. This
plugging is necessary to guarantee that every process enjoys a
bandwidth proportional to its weight; but it empties the internal
queue(s) of the drive. And this kills throughput with random I/O. So,
if some processes have differentiated weights and do both sync and
random I/O, the end result is a throughput collapse.

This commit tries to counter this problem by injecting the service of
other processes, in a controlled way, while the process in service
happens to have no I/O. This injection is performed only if the medium
is non rotational and performs internal queueing, and the process in
service does random I/O (service injection might be beneficial for
sequential I/O too, we'll work on that).

As an example of the benefits of this commit, on a PLEXTOR PX-256M5S
SSD, and with five processes having differentiated weights and doing
sync random 4KB I/O, this commit makes the throughput with bfq grow by
400%, from 25 to 100MB/s. This higher throughput is 10MB/s lower than
that reached with none. As some less random I/O is added to the mix,
the throughput becomes equal to or higher than that with none.

This commit is a very first attempt to recover throughput without
losing control, and certainly has many limitations. One is, e.g., that
the processes whose service is injected are not chosen so as to
distribute the extra bandwidth they receive in accordance to their
weights. Thus there might be loss of weighted fairness in some
cases. Anyway, this loss concerns extra service, which would not have
been received at all without this commit. Other limitations and issues
will probably show up with usage.

Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-11-20 18:46:44 +01:00
Satya Tangirala
392ad89e96 BACKPORT: FROMLIST: block: blk-crypto for Inline Encryption
We introduce blk-crypto, which manages programming keyslots for struct
bios. With blk-crypto, filesystems only need to call bio_crypt_set_ctx with
the encryption key, algorithm and data_unit_num; they don't have to worry
about getting a keyslot for each encryption context, as blk-crypto handles
that. Blk-crypto also makes it possible for layered devices like device
mapper to make use of inline encryption hardware.

Blk-crypto delegates crypto operations to inline encryption hardware when
available, and also contains a software fallback to the kernel crypto API.
For more details, refer to Documentation/block/inline-encryption.rst.

Bug: 137270441
Test: tested as series; see I26aac0ac7845a9064f28bb1421eb2522828a6dec
Change-Id: I6a98e518e5de50f1d4110441568ecd142a02e900
Signed-off-by: Satya Tangirala <satyat@google.com>
Link: https://patchwork.kernel.org/patch/11214731/
2019-11-14 14:47:49 -08:00
Satya Tangirala
8fda305325 ANDROID: block: Fix bio_crypt_should_process WARN_ON
bio_crypt_should_process would WARN that the bio did not have a
keyslot in any keyslot manager even when we were on the decrypt path
of blk-crypto, which is a bug. The WARN is now conditional on the
caller being responible for handling encryption rather than blk-crypto
(i.e. the WARN happens only if this function return true).

Bug: 137270441
Test: tested as series; see I26aac0ac7845a9064f28bb1421eb2522828a6dec
Change-Id: Id7ef6b066d43bebae146b28edc76e506c7b03235
Signed-off-by: Satya Tangirala <satyat@google.com>
2019-11-14 14:47:49 -08:00
Satya Tangirala
20efc30a3e BACKPORT: FROMLIST: block: Add encryption context to struct bio
We must have some way of letting a storage device driver know what
encryption context it should use for en/decrypting a request. However,
it's the filesystem/fscrypt that knows about and manages encryption
contexts. As such, when the filesystem layer submits a bio to the block
layer, and this bio eventually reaches a device driver with support for
inline encryption, the device driver will need to have been told the
encryption context for that bio.

We want to communicate the encryption context from the filesystem layer
to the storage device along with the bio, when the bio is submitted to the
block layer. To do this, we add a struct bio_crypt_ctx to struct bio, which
can represent an encryption context (note that we can't use the bi_private
field in struct bio to do this because that field does not function to pass
information across layers in the storage stack). We also introduce various
functions to manipulate the bio_crypt_ctx and make the bio/request merging
logic aware of the bio_crypt_ctx.

Bug: 137270441
Test: tested as series; see I26aac0ac7845a9064f28bb1421eb2522828a6dec
Change-Id: I16d99bb97f8cd7971cc11281a0d7120c5f87d83c
Signed-off-by: Satya Tangirala <satyat@google.com>
Link: https://patchwork.kernel.org/patch/11214719/
2019-11-14 14:47:49 -08:00
Satya Tangirala
b0a4fb22e5 BACKPORT: FROMLIST: block: Keyslot Manager for Inline Encryption
Inline Encryption hardware allows software to specify an encryption context
(an encryption key, crypto algorithm, data unit num, data unit size, etc.)
along with a data transfer request to a storage device, and the inline
encryption hardware will use that context to en/decrypt the data. The
inline encryption hardware is part of the storage device, and it
conceptually sits on the data path between system memory and the storage
device.

Inline Encryption hardware implementations often function around the
concept of "keyslots". These implementations often have a limited number
of "keyslots", each of which can hold an encryption context (we say that
an encryption context can be "programmed" into a keyslot). Requests made
to the storage device may have a keyslot associated with them, and the
inline encryption hardware will en/decrypt the data in the requests using
the encryption context programmed into that associated keyslot. As
keyslots are limited, and programming keys may be expensive in many
implementations, and multiple requests may use exactly the same encryption
contexts, we introduce a Keyslot Manager to efficiently manage keyslots.
The keyslot manager also functions as the interface that upper layers will
use to program keys into inline encryption hardware. For more information
on the Keyslot Manager, refer to documentation found in
block/keyslot-manager.c and linux/keyslot-manager.h.

Bug: 137270441
Test: tested as series; see I26aac0ac7845a9064f28bb1421eb2522828a6dec
Change-Id: I9a2dc72d61d5a3c64af379a97dd46155b41193eb
Signed-off-by: Satya Tangirala <satyat@google.com>
Link: https://patchwork.kernel.org/patch/11214713/
2019-11-14 14:47:49 -08:00
Greg Kroah-Hartman
b777b6f211 This is the 4.19.84 stable release
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Merge 4.19.84 into android-4.19

Changes in 4.19.84
	bonding: fix state transition issue in link monitoring
	CDC-NCM: handle incomplete transfer of MTU
	ipv4: Fix table id reference in fib_sync_down_addr
	net: ethernet: octeon_mgmt: Account for second possible VLAN header
	net: fix data-race in neigh_event_send()
	net: qualcomm: rmnet: Fix potential UAF when unregistering
	net: usb: qmi_wwan: add support for DW5821e with eSIM support
	NFC: fdp: fix incorrect free object
	nfc: netlink: fix double device reference drop
	NFC: st21nfca: fix double free
	qede: fix NULL pointer deref in __qede_remove()
	net: mscc: ocelot: don't handle netdev events for other netdevs
	net: mscc: ocelot: fix NULL pointer on LAG slave removal
	ipv6: fixes rt6_probe() and fib6_nh->last_probe init
	net: hns: Fix the stray netpoll locks causing deadlock in NAPI path
	ALSA: timer: Fix incorrectly assigned timer instance
	ALSA: bebob: fix to detect configured source of sampling clock for Focusrite Saffire Pro i/o series
	ALSA: hda/ca0132 - Fix possible workqueue stall
	mm: memcontrol: fix network errors from failing __GFP_ATOMIC charges
	mm, meminit: recalculate pcpu batch and high limits after init completes
	mm: thp: handle page cache THP correctly in PageTransCompoundMap
	mm, vmstat: hide /proc/pagetypeinfo from normal users
	dump_stack: avoid the livelock of the dump_lock
	tools: gpio: Use !building_out_of_srctree to determine srctree
	perf tools: Fix time sorting
	drm/radeon: fix si_enable_smc_cac() failed issue
	HID: wacom: generic: Treat serial number and related fields as unsigned
	soundwire: depend on ACPI
	soundwire: bus: set initial value to port_status
	arm64: Do not mask out PTE_RDONLY in pte_same()
	ceph: fix use-after-free in __ceph_remove_cap()
	ceph: add missing check in d_revalidate snapdir handling
	iio: adc: stm32-adc: fix stopping dma
	iio: imu: adis16480: make sure provided frequency is positive
	iio: srf04: fix wrong limitation in distance measuring
	ARM: sunxi: Fix CPU powerdown on A83T
	netfilter: nf_tables: Align nft_expr private data to 64-bit
	netfilter: ipset: Fix an error code in ip_set_sockfn_get()
	intel_th: pci: Add Comet Lake PCH support
	intel_th: pci: Add Jasper Lake PCH support
	x86/apic/32: Avoid bogus LDR warnings
	SMB3: Fix persistent handles reconnect
	can: usb_8dev: fix use-after-free on disconnect
	can: flexcan: disable completely the ECC mechanism
	can: c_can: c_can_poll(): only read status register after status IRQ
	can: peak_usb: fix a potential out-of-sync while decoding packets
	can: rx-offload: can_rx_offload_queue_sorted(): fix error handling, avoid skb mem leak
	can: gs_usb: gs_can_open(): prevent memory leak
	can: dev: add missing of_node_put() after calling of_get_child_by_name()
	can: mcba_usb: fix use-after-free on disconnect
	can: peak_usb: fix slab info leak
	configfs: stash the data we need into configfs_buffer at open time
	configfs_register_group() shouldn't be (and isn't) called in rmdirable parts
	configfs: new object reprsenting tree fragments
	configfs: provide exclusion between IO and removals
	configfs: fix a deadlock in configfs_symlink()
	ALSA: usb-audio: More validations of descriptor units
	ALSA: usb-audio: Simplify parse_audio_unit()
	ALSA: usb-audio: Unify the release of usb_mixer_elem_info objects
	ALSA: usb-audio: Remove superfluous bLength checks
	ALSA: usb-audio: Clean up check_input_term()
	ALSA: usb-audio: Fix possible NULL dereference at create_yamaha_midi_quirk()
	ALSA: usb-audio: remove some dead code
	ALSA: usb-audio: Fix copy&paste error in the validator
	sched/fair: Fix low cpu usage with high throttling by removing expiration of cpu-local slices
	sched/fair: Fix -Wunused-but-set-variable warnings
	usbip: Fix vhci_urb_enqueue() URB null transfer buffer error path
	usbip: Implement SG support to vhci-hcd and stub driver
	PCI: tegra: Enable Relaxed Ordering only for Tegra20 & Tegra30
	HID: google: add magnemite/masterball USB ids
	dmaengine: xilinx_dma: Fix control reg update in vdma_channel_set_config
	dmaengine: sprd: Fix the possible memory leak issue
	HID: intel-ish-hid: fix wrong error handling in ishtp_cl_alloc_tx_ring()
	RDMA/mlx5: Clear old rate limit when closing QP
	iw_cxgb4: fix ECN check on the passive accept
	RDMA/qedr: Fix reported firmware version
	net/mlx5e: TX, Fix consumer index of error cqe dump
	net/mlx5: prevent memory leak in mlx5_fpga_conn_create_cq
	scsi: qla2xxx: fixup incorrect usage of host_byte
	RDMA/uverbs: Prevent potential underflow
	net: openvswitch: free vport unless register_netdevice() succeeds
	scsi: lpfc: Honor module parameter lpfc_use_adisc
	scsi: qla2xxx: Initialized mailbox to prevent driver load failure
	netfilter: nf_flow_table: set timeout before insertion into hashes
	ipvs: don't ignore errors in case refcounting ip_vs module fails
	ipvs: move old_secure_tcp into struct netns_ipvs
	bonding: fix unexpected IFF_BONDING bit unset
	macsec: fix refcnt leak in module exit routine
	usb: fsl: Check memory resource before releasing it
	usb: gadget: udc: atmel: Fix interrupt storm in FIFO mode.
	usb: gadget: composite: Fix possible double free memory bug
	usb: dwc3: pci: prevent memory leak in dwc3_pci_probe
	usb: gadget: configfs: fix concurrent issue between composite APIs
	usb: dwc3: remove the call trace of USBx_GFLADJ
	perf/x86/amd/ibs: Fix reading of the IBS OpData register and thus precise RIP validity
	perf/x86/amd/ibs: Handle erratum #420 only on the affected CPU family (10h)
	perf/x86/uncore: Fix event group support
	USB: Skip endpoints with 0 maxpacket length
	USB: ldusb: use unsigned size format specifiers
	usbip: tools: Fix read_usb_vudc_device() error path handling
	RDMA/iw_cxgb4: Avoid freeing skb twice in arp failure case
	RDMA/hns: Prevent memory leaks of eq->buf_list
	scsi: qla2xxx: stop timer in shutdown path
	nvme-multipath: fix possible io hang after ctrl reconnect
	fjes: Handle workqueue allocation failure
	net: hisilicon: Fix "Trying to free already-free IRQ"
	net: mscc: ocelot: fix vlan_filtering when enslaving to bridge before link is up
	net: mscc: ocelot: refuse to overwrite the port's native vlan
	iommu/amd: Apply the same IVRS IOAPIC workaround to Acer Aspire A315-41
	drm/amdgpu: If amdgpu_ib_schedule fails return back the error.
	drm/amd/display: Passive DP->HDMI dongle detection fix
	hv_netvsc: Fix error handling in netvsc_attach()
	usb: dwc3: gadget: fix race when disabling ep with cancelled xfers
	NFSv4: Don't allow a cached open with a revoked delegation
	net: ethernet: arc: add the missed clk_disable_unprepare
	igb: Fix constant media auto sense switching when no cable is connected
	e1000: fix memory leaks
	pinctrl: intel: Avoid potential glitches if pin is in GPIO mode
	ocfs2: protect extent tree in ocfs2_prepare_inode_for_write()
	pinctrl: cherryview: Fix irq_valid_mask calculation
	blkcg: make blkcg_print_stat() print stats only for online blkgs
	iio: imu: mpu6050: Add support for the ICM 20602 IMU
	iio: imu: inv_mpu6050: fix no data on MPU6050
	mm/filemap.c: don't initiate writeback if mapping has no dirty pages
	cgroup,writeback: don't switch wbs immediately on dead wbs if the memcg is dead
	usbip: Fix free of unallocated memory in vhci tx
	netfilter: ipset: Copy the right MAC address in hash:ip,mac IPv6 sets
	net: prevent load/store tearing on sk->sk_stamp
	iio: imu: mpu6050: Fix FIFO layout for ICM20602
	vsock/virtio: fix sock refcnt holding during the shutdown
	drm/i915: Rename gen7 cmdparser tables
	drm/i915: Disable Secure Batches for gen6+
	drm/i915: Remove Master tables from cmdparser
	drm/i915: Add support for mandatory cmdparsing
	drm/i915: Support ro ppgtt mapped cmdparser shadow buffers
	drm/i915: Allow parsing of unsized batches
	drm/i915: Add gen9 BCS cmdparsing
	drm/i915/cmdparser: Use explicit goto for error paths
	drm/i915/cmdparser: Add support for backward jumps
	drm/i915/cmdparser: Ignore Length operands during command matching
	drm/i915: Lower RM timeout to avoid DSI hard hangs
	drm/i915/gen8+: Add RC6 CTX corruption WA
	drm/i915/cmdparser: Fix jump whitelist clearing
	KVM: x86: use Intel speculation bugs and features as derived in generic x86 code
	x86/msr: Add the IA32_TSX_CTRL MSR
	x86/cpu: Add a helper function x86_read_arch_cap_msr()
	x86/cpu: Add a "tsx=" cmdline option with TSX disabled by default
	x86/speculation/taa: Add mitigation for TSX Async Abort
	x86/speculation/taa: Add sysfs reporting for TSX Async Abort
	kvm/x86: Export MDS_NO=0 to guests when TSX is enabled
	x86/tsx: Add "auto" option to the tsx= cmdline parameter
	x86/speculation/taa: Add documentation for TSX Async Abort
	x86/tsx: Add config options to set tsx=on|off|auto
	x86/speculation/taa: Fix printing of TAA_MSG_SMT on IBRS_ALL CPUs
	x86/bugs: Add ITLB_MULTIHIT bug infrastructure
	x86/cpu: Add Tremont to the cpu vulnerability whitelist
	cpu/speculation: Uninline and export CPU mitigations helpers
	Documentation: Add ITLB_MULTIHIT documentation
	kvm: x86, powerpc: do not allow clearing largepages debugfs entry
	kvm: Convert kvm_lock to a mutex
	kvm: mmu: Do not release the page inside mmu_set_spte()
	KVM: x86: make FNAME(fetch) and __direct_map more similar
	KVM: x86: remove now unneeded hugepage gfn adjustment
	KVM: x86: change kvm_mmu_page_get_gfn BUG_ON to WARN_ON
	KVM: x86: add tracepoints around __direct_map and FNAME(fetch)
	KVM: vmx, svm: always run with EFER.NXE=1 when shadow paging is active
	kvm: mmu: ITLB_MULTIHIT mitigation
	kvm: Add helper function for creating VM worker threads
	kvm: x86: mmu: Recovery of shattered NX large pages
	Linux 4.19.84

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I7a820f00c4b868ed677bb49613f835b7e67a3a06
2019-11-14 14:15:21 +08:00
Tejun Heo
522128128d blkcg: make blkcg_print_stat() print stats only for online blkgs
[ Upstream commit b0814361a25cba73a224548843ed92d8ea78715a ]

blkcg_print_stat() iterates blkgs under RCU and doesn't test whether
the blkg is online.  This can call into pd_stat_fn() on a pd which is
still being initialized leading to an oops.

The heaviest operation - recursively summing up rwstat counters - is
already done while holding the queue_lock.  Expand queue_lock to cover
the other operations and skip the blkg if it isn't online yet.  The
online state is protected by both blkcg and queue locks, so this
guarantees that only online blkgs are processed.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Roman Gushchin <guro@fb.com>
Cc: Josef Bacik <jbacik@fb.com>
Fixes: 903d23f0a3 ("blk-cgroup: allow controllers to output their own stats")
Cc: stable@vger.kernel.org # v4.19+
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-11-12 19:21:19 +01:00
Greg Kroah-Hartman
c8532f7af6 This is the 4.19.81 stable release
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Merge 4.19.81 into android-4.19

Changes in 4.19.81
	nvme-pci: Fix a race in controller removal
	scsi: ufs: skip shutdown if hba is not powered
	scsi: megaraid: disable device when probe failed after enabled device
	scsi: qla2xxx: Fix unbound sleep in fcport delete path.
	ARM: OMAP2+: Fix missing reset done flag for am3 and am43
	ARM: OMAP2+: Fix warnings with broken omap2_set_init_voltage()
	ieee802154: ca8210: prevent memory leak
	ARM: dts: am4372: Set memory bandwidth limit for DISPC
	net: dsa: qca8k: Use up to 7 ports for all operations
	MIPS: dts: ar9331: fix interrupt-controller size
	xen/efi: Set nonblocking callbacks
	nl80211: fix null pointer dereference
	mac80211: fix txq null pointer dereference
	netfilter: nft_connlimit: disable bh on garbage collection
	net: dsa: rtl8366rb: add missing of_node_put after calling of_get_child_by_name
	mips: Loongson: Fix the link time qualifier of 'serial_exit()'
	net: hisilicon: Fix usage of uninitialized variable in function mdio_sc_cfg_reg_write()
	lib: textsearch: fix escapes in example code
	r8152: Set macpassthru in reset_resume callback
	namespace: fix namespace.pl script to support relative paths
	libata/ahci: Fix PCS quirk application
	md/raid0: fix warning message for parameter default_layout
	Revert "drm/radeon: Fix EEH during kexec"
	ocfs2: fix panic due to ocfs2_wq is null
	ipv4: fix race condition between route lookup and invalidation
	ipv4: Return -ENETUNREACH if we can't create route but saddr is valid
	net: avoid potential infinite loop in tc_ctl_action()
	net: bcmgenet: Fix RGMII_MODE_EN value for GENET v1/2/3
	net: bcmgenet: Set phydev->dev_flags only for internal PHYs
	net: i82596: fix dma_alloc_attr for sni_82596
	net/ibmvnic: Fix EOI when running in XIVE mode.
	net: ipv6: fix listify ip6_rcv_finish in case of forwarding
	net: stmmac: disable/enable ptp_ref_clk in suspend/resume flow
	sctp: change sctp_prot .no_autobind with true
	memfd: Fix locking when tagging pins
	USB: legousbtower: fix memleak on disconnect
	ALSA: hda/realtek - Add support for ALC711
	ALSA: hda/realtek - Enable headset mic on Asus MJ401TA
	ALSA: usb-audio: Disable quirks for BOSS Katana amplifiers
	ALSA: hda - Force runtime PM on Nvidia HDMI codecs
	usb: udc: lpc32xx: fix bad bit shift operation
	USB: serial: ti_usb_3410_5052: fix port-close races
	USB: ldusb: fix memleak on disconnect
	USB: usblp: fix use-after-free on disconnect
	USB: ldusb: fix read info leaks
	MIPS: tlbex: Fix build_restore_pagemask KScratch restore
	staging: wlan-ng: fix exit return when sme->key_idx >= NUM_WEPKEYS
	scsi: zfcp: fix reaction on bit error threshold notification
	scsi: sd: Ignore a failure to sync cache due to lack of authorization
	scsi: core: save/restore command resid for error handling
	scsi: core: try to get module before removing device
	scsi: ch: Make it possible to open a ch device multiple times again
	Input: da9063 - fix capability and drop KEY_SLEEP
	Input: synaptics-rmi4 - avoid processing unknown IRQs
	ASoC: rsnd: Reinitialize bit clock inversion flag for every format setting
	ACPI: CPPC: Set pcc_data[pcc_ss_id] to NULL in acpi_cppc_processor_exit()
	cfg80211: wext: avoid copying malformed SSIDs
	mac80211: Reject malformed SSID elements
	drm/edid: Add 6 bpc quirk for SDC panel in Lenovo G50
	drm/ttm: Restore ttm prefaulting
	drm/amdgpu: Bail earlier when amdgpu.cik_/si_support is not set to 1
	drivers/base/memory.c: don't access uninitialized memmaps in soft_offline_page_store()
	fs/proc/page.c: don't access uninitialized memmaps in fs/proc/page.c
	mmc: cqhci: Commit descriptors before setting the doorbell
	mm/memory-failure.c: don't access uninitialized memmaps in memory_failure()
	mm/slub: fix a deadlock in show_slab_objects()
	mm/page_owner: don't access uninitialized memmaps when reading /proc/pagetypeinfo
	hugetlbfs: don't access uninitialized memmaps in pfn_range_valid_gigantic()
	mm/memory-failure: poison read receives SIGKILL instead of SIGBUS if mmaped more than once
	xtensa: drop EXPORT_SYMBOL for outs*/ins*
	parisc: Fix vmap memory leak in ioremap()/iounmap()
	EDAC/ghes: Fix Use after free in ghes_edac remove path
	arm64: Enable workaround for Cavium TX2 erratum 219 when running SMT
	CIFS: avoid using MID 0xFFFF
	CIFS: Fix use after free of file info structures
	perf/aux: Fix AUX output stopping
	tracing: Fix race in perf_trace_buf initialization
	dm cache: fix bugs when a GFP_NOWAIT allocation fails
	x86/boot/64: Make level2_kernel_pgt pages invalid outside kernel area
	x86/apic/x2apic: Fix a NULL pointer deref when handling a dying cpu
	pinctrl: cherryview: restore Strago DMI workaround for all versions
	pinctrl: armada-37xx: fix control of pins 32 and up
	pinctrl: armada-37xx: swap polarity on LED group
	btrfs: block-group: Fix a memory leak due to missing btrfs_put_block_group()
	Btrfs: add missing extents release on file extent cluster relocation error
	Btrfs: check for the full sync flag while holding the inode lock during fsync
	btrfs: tracepoints: Fix bad entry members of qgroup events
	memstick: jmb38x_ms: Fix an error handling path in 'jmb38x_ms_probe()'
	cpufreq: Avoid cpufreq_suspend() deadlock on system shutdown
	xen/netback: fix error path of xenvif_connect_data()
	PCI: PM: Fix pci_power_up()
	blk-rq-qos: fix first node deletion of rq_qos_del()
	RDMA/cxgb4: Do not dma memory off of the stack
	Linux 4.19.81

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I96ed6b6f11919bc6dd4b560b160b8e7059ec574e
2019-10-29 09:41:48 +01:00
Tejun Heo
054441182b blk-rq-qos: fix first node deletion of rq_qos_del()
commit 307f4065b9d7c1e887e8bdfb2487e4638559fea1 upstream.

rq_qos_del() incorrectly assigns the node being deleted to the head if
it was the first on the list in the !prev path.  Fix it by iterating
with ** instead.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Josef Bacik <josef@toxicpanda.com>
Fixes: a79050434b ("blk-rq-qos: refactor out common elements of blk-wbt")
Cc: stable@vger.kernel.org # v4.19+
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-29 09:20:09 +01:00
Greg Kroah-Hartman
d8a623cfbb This is the 4.19.80 stable release
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Merge 4.19.80 into android-4.19

Changes in 4.19.80
	panic: ensure preemption is disabled during panic()
	f2fs: use EINVAL for superblock with invalid magic
	USB: rio500: Remove Rio 500 kernel driver
	USB: yurex: Don't retry on unexpected errors
	USB: yurex: fix NULL-derefs on disconnect
	USB: usb-skeleton: fix runtime PM after driver unbind
	USB: usb-skeleton: fix NULL-deref on disconnect
	xhci: Fix false warning message about wrong bounce buffer write length
	xhci: Prevent device initiated U1/U2 link pm if exit latency is too long
	xhci: Check all endpoints for LPM timeout
	xhci: Fix USB 3.1 capability detection on early xHCI 1.1 spec based hosts
	usb: xhci: wait for CNR controller not ready bit in xhci resume
	xhci: Prevent deadlock when xhci adapter breaks during init
	xhci: Increase STS_SAVE timeout in xhci_suspend()
	USB: adutux: fix use-after-free on disconnect
	USB: adutux: fix NULL-derefs on disconnect
	USB: adutux: fix use-after-free on release
	USB: iowarrior: fix use-after-free on disconnect
	USB: iowarrior: fix use-after-free on release
	USB: iowarrior: fix use-after-free after driver unbind
	USB: usblp: fix runtime PM after driver unbind
	USB: chaoskey: fix use-after-free on release
	USB: ldusb: fix NULL-derefs on driver unbind
	serial: uartlite: fix exit path null pointer
	USB: serial: keyspan: fix NULL-derefs on open() and write()
	USB: serial: ftdi_sio: add device IDs for Sienna and Echelon PL-20
	USB: serial: option: add Telit FN980 compositions
	USB: serial: option: add support for Cinterion CLS8 devices
	USB: serial: fix runtime PM after driver unbind
	USB: usblcd: fix I/O after disconnect
	USB: microtek: fix info-leak at probe
	USB: dummy-hcd: fix power budget for SuperSpeed mode
	usb: renesas_usbhs: gadget: Do not discard queues in usb_ep_set_{halt,wedge}()
	usb: renesas_usbhs: gadget: Fix usb_ep_set_{halt,wedge}() behavior
	USB: legousbtower: fix slab info leak at probe
	USB: legousbtower: fix deadlock on disconnect
	USB: legousbtower: fix potential NULL-deref on disconnect
	USB: legousbtower: fix open after failed reset request
	USB: legousbtower: fix use-after-free on release
	mei: me: add comet point (lake) LP device ids
	mei: avoid FW version request on Ibex Peak and earlier
	gpio: eic: sprd: Fix the incorrect EIC offset when toggling
	Staging: fbtft: fix memory leak in fbtft_framebuffer_alloc
	staging: vt6655: Fix memory leak in vt6655_probe
	iio: adc: hx711: fix bug in sampling of data
	iio: adc: ad799x: fix probe error handling
	iio: adc: axp288: Override TS pin bias current for some models
	iio: light: opt3001: fix mutex unlock race
	efivar/ssdt: Don't iterate over EFI vars if no SSDT override was specified
	perf llvm: Don't access out-of-scope array
	perf inject jit: Fix JIT_CODE_MOVE filename
	blk-wbt: fix performance regression in wbt scale_up/scale_down
	CIFS: Gracefully handle QueryInfo errors during open
	CIFS: Force revalidate inode when dentry is stale
	CIFS: Force reval dentry if LOOKUP_REVAL flag is set
	kernel/sysctl.c: do not override max_threads provided by userspace
	mm/vmpressure.c: fix a signedness bug in vmpressure_register_event()
	firmware: google: increment VPD key_len properly
	gpiolib: don't clear FLAG_IS_OUT when emulating open-drain/open-source
	iio: adc: stm32-adc: move registers definitions
	iio: adc: stm32-adc: fix a race when using several adcs with dma and irq
	cifs: use cifsInodeInfo->open_file_lock while iterating to avoid a panic
	btrfs: fix incorrect updating of log root tree
	btrfs: fix uninitialized ret in ref-verify
	NFS: Fix O_DIRECT accounting of number of bytes read/written
	MIPS: Disable Loongson MMI instructions for kernel build
	MIPS: elf_hwcap: Export userspace ASEs
	ACPICA: ACPI 6.3: PPTT add additional fields in Processor Structure Flags
	ACPI/PPTT: Add support for ACPI 6.3 thread flag
	arm64: topology: Use PPTT to determine if PE is a thread
	Fix the locking in dcache_readdir() and friends
	media: stkwebcam: fix runtime PM after driver unbind
	arm64/sve: Fix wrong free for task->thread.sve_state
	tracing/hwlat: Report total time spent in all NMIs during the sample
	tracing/hwlat: Don't ignore outer-loop duration when calculating max_latency
	ftrace: Get a reference counter for the trace_array on filter files
	tracing: Get trace_array reference for available_tracers files
	hwmon: Fix HWMON_P_MIN_ALARM mask
	x86/asm: Fix MWAITX C-state hint value
	PCI: vmd: Fix config addressing when using bus offsets
	perf/hw_breakpoint: Fix arch_hw_breakpoint use-before-initialization
	Linux 4.19.80

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I8ef1835585f79b752712a835852a4bc960ae3b97
2019-10-17 15:33:07 -07:00
Harshad Shirwadkar
345c03a0de blk-wbt: fix performance regression in wbt scale_up/scale_down
commit b84477d3ebb96294f87dc3161e53fa8fe22d9bfd upstream.

scale_up wakes up waiters after scaling up. But after scaling max, it
should not wake up more waiters as waiters will not have anything to
do. This patch fixes this by making scale_up (and also scale_down)
return when threshold is reached.

This bug causes increased fdatasync latency when fdatasync and dd
conv=sync are performed in parallel on 4.19 compared to 4.14. This
bug was introduced during refactoring of blk-wbt code.

Fixes: a79050434b ("blk-rq-qos: refactor out common elements of blk-wbt")
Cc: stable@vger.kernel.org
Cc: Josef Bacik <jbacik@fb.com>
Signed-off-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-10-17 13:45:16 -07:00
Johannes Weiner
1bae2175c2 BACKPORT: block: annotate refault stalls from IO submission
psi tracks the time tasks wait for refaulting pages to become
uptodate, but it does not track the time spent submitting the IO. The
submission part can be significant if backing storage is contended or
when cgroup throttling (io.latency) is in effect - a lot of time is
spent in submit_bio(). In that case, we underreport memory pressure.

Annotate submit_bio() to account submission time as memory stall when
the bio is reading userspace workingset pages.

Tested-by: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

(cherry picked from commit b8e24a9300b0836a9d39f6b20746766b3b81f1bd)

Conflicts:
        include/linux/blk_types.h

(1. Manually resolved BIO_WORKINGSET being definition instead of enum.)

Bug: 141131229
Test: boot and run act test suite
Change-Id: I99cef039844e219f1dc8196feead54b6f5fb26bb
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
2019-10-07 18:04:48 +00:00
Greg Kroah-Hartman
75337a6f96 This is the 4.19.78 stable release
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Merge 4.19.78 into android-4.19

Changes in 4.19.78
	tpm: use tpm_try_get_ops() in tpm-sysfs.c.
	tpm: Fix TPM 1.2 Shutdown sequence to prevent future TPM operations
	drm/bridge: tc358767: Increase AUX transfer length limit
	drm/panel: simple: fix AUO g185han01 horizontal blanking
	video: ssd1307fb: Start page range at page_offset
	drm/stm: attach gem fence to atomic state
	drm/panel: check failure cases in the probe func
	drm/rockchip: Check for fast link training before enabling psr
	drm/radeon: Fix EEH during kexec
	gpu: drm: radeon: Fix a possible null-pointer dereference in radeon_connector_set_property()
	PCI: rpaphp: Avoid a sometimes-uninitialized warning
	ipmi_si: Only schedule continuously in the thread in maintenance mode
	clk: qoriq: Fix -Wunused-const-variable
	clk: sunxi-ng: v3s: add missing clock slices for MMC2 module clocks
	drm/amd/display: fix issue where 252-255 values are clipped
	drm/amd/display: reprogram VM config when system resume
	powerpc/powernv/ioda2: Allocate TCE table levels on demand for default DMA window
	clk: actions: Don't reference clk_init_data after registration
	clk: sirf: Don't reference clk_init_data after registration
	clk: sprd: Don't reference clk_init_data after registration
	clk: zx296718: Don't reference clk_init_data after registration
	powerpc/xmon: Check for HV mode when dumping XIVE info from OPAL
	powerpc/rtas: use device model APIs and serialization during LPM
	powerpc/futex: Fix warning: 'oldval' may be used uninitialized in this function
	powerpc/pseries/mobility: use cond_resched when updating device tree
	pinctrl: tegra: Fix write barrier placement in pmx_writel
	powerpc/eeh: Clear stale EEH_DEV_NO_HANDLER flag
	vfio_pci: Restore original state on release
	drm/nouveau/volt: Fix for some cards having 0 maximum voltage
	pinctrl: amd: disable spurious-firing GPIO IRQs
	clk: renesas: mstp: Set GENPD_FLAG_ALWAYS_ON for clock domain
	clk: renesas: cpg-mssr: Set GENPD_FLAG_ALWAYS_ON for clock domain
	drm/amd/display: support spdif
	drm/amdgpu/si: fix ASIC tests
	powerpc/64s/exception: machine check use correct cfar for late handler
	pstore: fs superblock limits
	clk: qcom: gcc-sdm845: Use floor ops for sdcc clks
	powerpc/pseries: correctly track irq state in default idle
	pinctrl: meson-gxbb: Fix wrong pinning definition for uart_c
	arm64: fix unreachable code issue with cmpxchg
	clk: at91: select parent if main oscillator or bypass is enabled
	powerpc: dump kernel log before carrying out fadump or kdump
	mbox: qcom: add APCS child device for QCS404
	clk: sprd: add missing kfree
	scsi: core: Reduce memory required for SCSI logging
	dma-buf/sw_sync: Synchronize signal vs syncpt free
	ext4: fix potential use after free after remounting with noblock_validity
	MIPS: Ingenic: Disable broken BTB lookup optimization.
	MIPS: tlbex: Explicitly cast _PAGE_NO_EXEC to a boolean
	i2c-cht-wc: Fix lockdep warning
	mfd: intel-lpss: Remove D3cold delay
	PCI: tegra: Fix OF node reference leak
	HID: wacom: Fix several minor compiler warnings
	livepatch: Nullify obj->mod in klp_module_coming()'s error path
	ARM: 8898/1: mm: Don't treat faults reported from cache maintenance as writes
	soundwire: intel: fix channel number reported by hardware
	ARM: 8875/1: Kconfig: default to AEABI w/ Clang
	rtc: snvs: fix possible race condition
	rtc: pcf85363/pcf85263: fix regmap error in set_time
	HID: apple: Fix stuck function keys when using FN
	PCI: rockchip: Propagate errors for optional regulators
	PCI: histb: Propagate errors for optional regulators
	PCI: imx6: Propagate errors for optional regulators
	PCI: exynos: Propagate errors for optional PHYs
	security: smack: Fix possible null-pointer dereferences in smack_socket_sock_rcv_skb()
	ARM: 8903/1: ensure that usable memory in bank 0 starts from a PMD-aligned address
	fat: work around race with userspace's read via blockdev while mounting
	pktcdvd: remove warning on attempting to register non-passthrough dev
	hypfs: Fix error number left in struct pointer member
	crypto: hisilicon - Fix double free in sec_free_hw_sgl()
	kbuild: clean compressed initramfs image
	ocfs2: wait for recovering done after direct unlock request
	kmemleak: increase DEBUG_KMEMLEAK_EARLY_LOG_SIZE default to 16K
	arm64: consider stack randomization for mmap base only when necessary
	mips: properly account for stack randomization and stack guard gap
	arm: properly account for stack randomization and stack guard gap
	arm: use STACK_TOP when computing mmap base address
	block: mq-deadline: Fix queue restart handling
	bpf: fix use after free in prog symbol exposure
	cxgb4:Fix out-of-bounds MSI-X info array access
	erspan: remove the incorrect mtu limit for erspan
	hso: fix NULL-deref on tty open
	ipv6: drop incoming packets having a v4mapped source address
	ipv6: Handle missing host route in __ipv6_ifa_notify
	net: ipv4: avoid mixed n_redirects and rate_tokens usage
	net: qlogic: Fix memory leak in ql_alloc_large_buffers
	net: Unpublish sk from sk_reuseport_cb before call_rcu
	nfc: fix memory leak in llcp_sock_bind()
	qmi_wwan: add support for Cinterion CLS8 devices
	rxrpc: Fix rxrpc_recvmsg tracepoint
	sch_dsmark: fix potential NULL deref in dsmark_init()
	udp: fix gso_segs calculations
	vsock: Fix a lockdep warning in __vsock_release()
	net: dsa: rtl8366: Check VLAN ID and not ports
	udp: only do GSO if # of segs > 1
	net/rds: Fix error handling in rds_ib_add_one()
	xen-netfront: do not use ~0U as error return value for xennet_fill_frags()
	tipc: fix unlimited bundling of small messages
	sch_cbq: validate TCA_CBQ_WRROPT to avoid crash
	soundwire: Kconfig: fix help format
	soundwire: fix regmap dependencies and align with other serial links
	Smack: Don't ignore other bprm->unsafe flags if LSM_UNSAFE_PTRACE is set
	smack: use GFP_NOFS while holding inode_smack::smk_lock
	NFC: fix attrs checks in netlink interface
	kexec: bail out upon SIGKILL when allocating memory.
	9p/cache.c: Fix memory leak in v9fs_cache_session_get_cookie
	Linux 4.19.78

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I02db9c4a0cc1f784e6ac1523599fcbed747a6375
2019-10-07 19:17:35 +02:00
Damien Le Moal
dbb7339cfd block: mq-deadline: Fix queue restart handling
[ Upstream commit cb8acabbe33b110157955a7425ee876fb81e6bbc ]

Commit 7211aef86f79 ("block: mq-deadline: Fix write completion
handling") added a call to blk_mq_sched_mark_restart_hctx() in
dd_dispatch_request() to make sure that write request dispatching does
not stall when all target zones are locked. This fix left a subtle race
when a write completion happens during a dispatch execution on another
CPU:

CPU 0: Dispatch			CPU1: write completion

dd_dispatch_request()
    lock(&dd->lock);
    ...
    lock(&dd->zone_lock);	dd_finish_request()
    rq = find request		lock(&dd->zone_lock);
    unlock(&dd->zone_lock);
    				zone write unlock
				unlock(&dd->zone_lock);
				...
				__blk_mq_free_request
                                      check restart flag (not set)
				      -> queue not run
    ...
    if (!rq && have writes)
        blk_mq_sched_mark_restart_hctx()
    unlock(&dd->lock)

Since the dispatch context finishes after the write request completion
handling, marking the queue as needing a restart is not seen from
__blk_mq_free_request() and blk_mq_sched_restart() not executed leading
to the dispatch stall under 100% write workloads.

Fix this by moving the call to blk_mq_sched_mark_restart_hctx() from
dd_dispatch_request() into dd_finish_request() under the zone lock to
ensure full mutual exclusion between write request dispatch selection
and zone unlock on write request completion.

Fixes: 7211aef86f79 ("block: mq-deadline: Fix write completion handling")
Cc: stable@vger.kernel.org
Reported-by: Hans Holmberg <Hans.Holmberg@wdc.com>
Reviewed-by: Hans Holmberg <hans.holmberg@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-10-07 18:57:19 +02:00
Greg Kroah-Hartman
7f1f24fed2 This is the 4.19.77 stable release
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Merge 4.19.77 into android-4.19

Changes in 4.19.77
	arcnet: provide a buffer big enough to actually receive packets
	cdc_ncm: fix divide-by-zero caused by invalid wMaxPacketSize
	macsec: drop skb sk before calling gro_cells_receive
	net/phy: fix DP83865 10 Mbps HDX loopback disable function
	net: qrtr: Stop rx_worker before freeing node
	net/sched: act_sample: don't push mac header on ip6gre ingress
	net_sched: add max len check for TCA_KIND
	nfp: flower: fix memory leak in nfp_flower_spawn_vnic_reprs
	openvswitch: change type of UPCALL_PID attribute to NLA_UNSPEC
	ppp: Fix memory leak in ppp_write
	sch_netem: fix a divide by zero in tabledist()
	skge: fix checksum byte order
	usbnet: ignore endpoints with invalid wMaxPacketSize
	usbnet: sanity checking of packet sizes and device mtu
	net: sched: fix possible crash in tcf_action_destroy()
	tcp: better handle TCP_USER_TIMEOUT in SYN_SENT state
	net/mlx5: Add device ID of upcoming BlueField-2
	mISDN: enforce CAP_NET_RAW for raw sockets
	appletalk: enforce CAP_NET_RAW for raw sockets
	ax25: enforce CAP_NET_RAW for raw sockets
	ieee802154: enforce CAP_NET_RAW for raw sockets
	nfc: enforce CAP_NET_RAW for raw sockets
	nfp: flower: prevent memory leak in nfp_flower_spawn_phy_reprs
	ALSA: hda: Flush interrupts on disabling
	regulator: lm363x: Fix off-by-one n_voltages for lm3632 ldo_vpos/ldo_vneg
	ASoC: tlv320aic31xx: suppress error message for EPROBE_DEFER
	ASoC: sgtl5000: Fix of unmute outputs on probe
	ASoC: sgtl5000: Fix charge pump source assignment
	firmware: qcom_scm: Use proper types for dma mappings
	dmaengine: bcm2835: Print error in case setting DMA mask fails
	leds: leds-lp5562 allow firmware files up to the maximum length
	media: dib0700: fix link error for dibx000_i2c_set_speed
	media: mtk-cir: lower de-glitch counter for rc-mm protocol
	media: exynos4-is: fix leaked of_node references
	media: hdpvr: Add device num check and handling
	media: i2c: ov5640: Check for devm_gpiod_get_optional() error
	time/tick-broadcast: Fix tick_broadcast_offline() lockdep complaint
	sched/fair: Fix imbalance due to CPU affinity
	sched/core: Fix CPU controller for !RT_GROUP_SCHED
	x86/apic: Make apic_pending_intr_clear() more robust
	sched/deadline: Fix bandwidth accounting at all levels after offline migration
	x86/reboot: Always use NMI fallback when shutdown via reboot vector IPI fails
	x86/apic: Soft disable APIC before initializing it
	ALSA: hda - Show the fatal CORB/RIRB error more clearly
	ALSA: i2c: ak4xxx-adda: Fix a possible null pointer dereference in build_adc_controls()
	EDAC/mc: Fix grain_bits calculation
	media: iguanair: add sanity checks
	base: soc: Export soc_device_register/unregister APIs
	ALSA: usb-audio: Skip bSynchAddress endpoint check if it is invalid
	ia64:unwind: fix double free for mod->arch.init_unw_table
	EDAC/altera: Use the proper type for the IRQ status bits
	ASoC: rsnd: don't call clk_get_rate() under atomic context
	arm64/prefetch: fix a -Wtype-limits warning
	md/raid1: end bio when the device faulty
	md: don't call spare_active in md_reap_sync_thread if all member devices can't work
	md: don't set In_sync if array is frozen
	media: media/platform: fsl-viu.c: fix build for MICROBLAZE
	ACPI / processor: don't print errors for processorIDs == 0xff
	loop: Add LOOP_SET_DIRECT_IO to compat ioctl
	EDAC, pnd2: Fix ioremap() size in dnv_rd_reg()
	efi: cper: print AER info of PCIe fatal error
	firmware: arm_scmi: Check if platform has released shmem before using
	sched/fair: Use rq_lock/unlock in online_fair_sched_group
	idle: Prevent late-arriving interrupts from disrupting offline
	media: gspca: zero usb_buf on error
	perf config: Honour $PERF_CONFIG env var to specify alternate .perfconfig
	perf test vfs_getname: Disable ~/.perfconfig to get default output
	media: mtk-mdp: fix reference count on old device tree
	media: fdp1: Reduce FCP not found message level to debug
	media: em28xx: modules workqueue not inited for 2nd device
	media: rc: imon: Allow iMON RC protocol for ffdc 7e device
	dmaengine: iop-adma: use correct printk format strings
	perf record: Support aarch64 random socket_id assignment
	media: vsp1: fix memory leak of dl on error return path
	media: i2c: ov5645: Fix power sequence
	media: omap3isp: Don't set streaming state on random subdevs
	media: imx: mipi csi-2: Don't fail if initial state times-out
	net: lpc-enet: fix printk format strings
	m68k: Prevent some compiler warnings in Coldfire builds
	ARM: dts: imx7d: cl-som-imx7: make ethernet work again
	ARM: dts: imx7-colibri: disable HS400
	media: radio/si470x: kill urb on error
	media: hdpvr: add terminating 0 at end of string
	ASoC: uniphier: Fix double reset assersion when transitioning to suspend state
	tools headers: Fixup bitsperlong per arch includes
	ASoC: sun4i-i2s: Don't use the oversample to calculate BCLK
	led: triggers: Fix a memory leak bug
	nbd: add missing config put
	media: mceusb: fix (eliminate) TX IR signal length limit
	media: dvb-frontends: use ida for pll number
	posix-cpu-timers: Sanitize bogus WARNONS
	media: dvb-core: fix a memory leak bug
	libperf: Fix alignment trap with xyarray contents in 'perf stat'
	EDAC/amd64: Recognize DRAM device type ECC capability
	EDAC/amd64: Decode syndrome before translating address
	PM / devfreq: passive: Use non-devm notifiers
	PM / devfreq: exynos-bus: Correct clock enable sequence
	media: cec-notifier: clear cec_adap in cec_notifier_unregister
	media: saa7146: add cleanup in hexium_attach()
	media: cpia2_usb: fix memory leaks
	media: saa7134: fix terminology around saa7134_i2c_eeprom_md7134_gate()
	perf trace beauty ioctl: Fix off-by-one error in cmd->string table
	media: ov9650: add a sanity check
	ASoC: es8316: fix headphone mixer volume table
	ACPI / CPPC: do not require the _PSD method
	sched/cpufreq: Align trace event behavior of fast switching
	x86/apic/vector: Warn when vector space exhaustion breaks affinity
	arm64: kpti: ensure patched kernel text is fetched from PoU
	x86/mm/pti: Do not invoke PTI functions when PTI is disabled
	ASoC: fsl_ssi: Fix clock control issue in master mode
	x86/mm/pti: Handle unaligned address gracefully in pti_clone_pagetable()
	nvmet: fix data units read and written counters in SMART log
	nvme-multipath: fix ana log nsid lookup when nsid is not found
	ALSA: firewire-motu: add support for MOTU 4pre
	iommu/amd: Silence warnings under memory pressure
	libata/ahci: Drop PCS quirk for Denverton and beyond
	iommu/iova: Avoid false sharing on fq_timer_on
	libtraceevent: Change users plugin directory
	ARM: dts: exynos: Mark LDO10 as always-on on Peach Pit/Pi Chromebooks
	ACPI: custom_method: fix memory leaks
	ACPI / PCI: fix acpi_pci_irq_enable() memory leak
	closures: fix a race on wakeup from closure_sync
	hwmon: (acpi_power_meter) Change log level for 'unsafe software power cap'
	md/raid1: fail run raid1 array when active disk less than one
	dmaengine: ti: edma: Do not reset reserved paRAM slots
	kprobes: Prohibit probing on BUG() and WARN() address
	s390/crypto: xts-aes-s390 fix extra run-time crypto self tests finding
	x86/cpu: Add Tiger Lake to Intel family
	platform/x86: intel_pmc_core: Do not ioremap RAM
	ASoC: dmaengine: Make the pcm->name equal to pcm->id if the name is not set
	raid5: don't set STRIPE_HANDLE to stripe which is in batch list
	mmc: core: Clarify sdio_irq_pending flag for MMC_CAP2_SDIO_IRQ_NOTHREAD
	mmc: sdhci: Fix incorrect switch to HS mode
	mmc: core: Add helper function to indicate if SDIO IRQs is enabled
	mmc: dw_mmc: Re-store SDIO IRQs mask at system resume
	raid5: don't increment read_errors on EILSEQ return
	libertas: Add missing sentinel at end of if_usb.c fw_table
	e1000e: add workaround for possible stalled packet
	ALSA: hda - Drop unsol event handler for Intel HDMI codecs
	drm/amd/powerplay/smu7: enforce minimal VBITimeout (v2)
	media: ttusb-dec: Fix info-leak in ttusb_dec_send_command()
	ALSA: hda/realtek - Blacklist PC beep for Lenovo ThinkCentre M73/93
	iommu/amd: Override wrong IVRS IOAPIC on Raven Ridge systems
	btrfs: extent-tree: Make sure we only allocate extents from block groups with the same type
	media: omap3isp: Set device on omap3isp subdevs
	PM / devfreq: passive: fix compiler warning
	iwlwifi: fw: don't send GEO_TX_POWER_LIMIT command to FW version 36
	ALSA: firewire-tascam: handle error code when getting current source of clock
	ALSA: firewire-tascam: check intermediate state of clock status and retry
	scsi: scsi_dh_rdac: zero cdb in send_mode_select()
	scsi: qla2xxx: Fix Relogin to prevent modifying scan_state flag
	printk: Do not lose last line in kmsg buffer dump
	IB/mlx5: Free mpi in mp_slave mode
	IB/hfi1: Define variables as unsigned long to fix KASAN warning
	randstruct: Check member structs in is_pure_ops_struct()
	Revert "ceph: use ceph_evict_inode to cleanup inode's resource"
	ceph: use ceph_evict_inode to cleanup inode's resource
	ALSA: hda/realtek - PCI quirk for Medion E4254
	blk-mq: add callback of .cleanup_rq
	scsi: implement .cleanup_rq callback
	powerpc/imc: Dont create debugfs files for cpu-less nodes
	fuse: fix missing unlock_page in fuse_writepage()
	parisc: Disable HP HSC-PCI Cards to prevent kernel crash
	KVM: x86: always stop emulation on page fault
	KVM: x86: set ctxt->have_exception in x86_decode_insn()
	KVM: x86: Manually calculate reserved bits when loading PDPTRS
	media: sn9c20x: Add MSI MS-1039 laptop to flip_dmi_table
	media: don't drop front-end reference count for ->detach
	binfmt_elf: Do not move brk for INTERP-less ET_EXEC
	ASoC: Intel: NHLT: Fix debug print format
	ASoC: Intel: Skylake: Use correct function to access iomem space
	ASoC: Intel: Fix use of potentially uninitialized variable
	ARM: samsung: Fix system restart on S3C6410
	ARM: zynq: Use memcpy_toio instead of memcpy on smp bring-up
	Revert "arm64: Remove unnecessary ISBs from set_{pte,pmd,pud}"
	arm64: tlb: Ensure we execute an ISB following walk cache invalidation
	arm64: dts: rockchip: limit clock rate of MMC controllers for RK3328
	alarmtimer: Use EOPNOTSUPP instead of ENOTSUPP
	regulator: Defer init completion for a while after late_initcall
	efifb: BGRT: Improve efifb_bgrt_sanity_check
	gfs2: clear buf_in_tr when ending a transaction in sweep_bh_for_rgrps
	memcg, oom: don't require __GFP_FS when invoking memcg OOM killer
	memcg, kmem: do not fail __GFP_NOFAIL charges
	i40e: check __I40E_VF_DISABLE bit in i40e_sync_filters_subtask
	block: fix null pointer dereference in blk_mq_rq_timed_out()
	smb3: allow disabling requesting leases
	ovl: Fix dereferencing possible ERR_PTR()
	ovl: filter of trusted xattr results in audit
	btrfs: fix allocation of free space cache v1 bitmap pages
	Btrfs: fix use-after-free when using the tree modification log
	btrfs: Relinquish CPUs in btrfs_compare_trees
	btrfs: qgroup: Fix the wrong target io_tree when freeing reserved data space
	btrfs: qgroup: Fix reserved data space leak if we have multiple reserve calls
	Btrfs: fix race setting up and completing qgroup rescan workers
	md/raid6: Set R5_ReadError when there is read failure on parity disk
	md: don't report active array_state until after revalidate_disk() completes.
	md: only call set_in_sync() when it is expected to succeed.
	cfg80211: Purge frame registrations on iftype change
	/dev/mem: Bail out upon SIGKILL.
	ext4: fix warning inside ext4_convert_unwritten_extents_endio
	ext4: fix punch hole for inline_data file systems
	quota: fix wrong condition in is_quota_modification()
	hwrng: core - don't wait on add_early_randomness()
	i2c: riic: Clear NACK in tend isr
	CIFS: fix max ea value size
	CIFS: Fix oplock handling for SMB 2.1+ protocols
	md/raid0: avoid RAID0 data corruption due to layout confusion.
	fuse: fix deadlock with aio poll and fuse_iqueue::waitq.lock
	mm/compaction.c: clear total_{migrate,free}_scanned before scanning a new zone
	drm/amd/display: Restore backlight brightness after system resume
	Linux 4.19.77

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I2c74f09f497a4b45b244a7dd263c5116533dfccb
2019-10-06 11:27:45 +02:00
Yufen Yu
82652c06f9 block: fix null pointer dereference in blk_mq_rq_timed_out()
commit 8d6996630c03d7ceeabe2611378fea5ca1c3f1b3 upstream.

We got a null pointer deference BUG_ON in blk_mq_rq_timed_out()
as following:

[  108.825472] BUG: kernel NULL pointer dereference, address: 0000000000000040
[  108.827059] PGD 0 P4D 0
[  108.827313] Oops: 0000 [#1] SMP PTI
[  108.827657] CPU: 6 PID: 198 Comm: kworker/6:1H Not tainted 5.3.0-rc8+ #431
[  108.829503] Workqueue: kblockd blk_mq_timeout_work
[  108.829913] RIP: 0010:blk_mq_check_expired+0x258/0x330
[  108.838191] Call Trace:
[  108.838406]  bt_iter+0x74/0x80
[  108.838665]  blk_mq_queue_tag_busy_iter+0x204/0x450
[  108.839074]  ? __switch_to_asm+0x34/0x70
[  108.839405]  ? blk_mq_stop_hw_queue+0x40/0x40
[  108.839823]  ? blk_mq_stop_hw_queue+0x40/0x40
[  108.840273]  ? syscall_return_via_sysret+0xf/0x7f
[  108.840732]  blk_mq_timeout_work+0x74/0x200
[  108.841151]  process_one_work+0x297/0x680
[  108.841550]  worker_thread+0x29c/0x6f0
[  108.841926]  ? rescuer_thread+0x580/0x580
[  108.842344]  kthread+0x16a/0x1a0
[  108.842666]  ? kthread_flush_work+0x170/0x170
[  108.843100]  ret_from_fork+0x35/0x40

The bug is caused by the race between timeout handle and completion for
flush request.

When timeout handle function blk_mq_rq_timed_out() try to read
'req->q->mq_ops', the 'req' have completed and reinitiated by next
flush request, which would call blk_rq_init() to clear 'req' as 0.

After commit 12f5b93145 ("blk-mq: Remove generation seqeunce"),
normal requests lifetime are protected by refcount. Until 'rq->ref'
drop to zero, the request can really be free. Thus, these requests
cannot been reused before timeout handle finish.

However, flush request has defined .end_io and rq->end_io() is still
called even if 'rq->ref' doesn't drop to zero. After that, the 'flush_rq'
can be reused by the next flush request handle, resulting in null
pointer deference BUG ON.

We fix this problem by covering flush request with 'rq->ref'.
If the refcount is not zero, flush_end_io() return and wait the
last holder recall it. To record the request status, we add a new
entry 'rq_status', which will be used in flush_end_io().

Cc: Christoph Hellwig <hch@infradead.org>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: stable@vger.kernel.org # v4.18+
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Bob Liu <bob.liu@oracle.com>
Signed-off-by: Yufen Yu <yuyufen@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

-------
v2:
 - move rq_status from struct request to struct blk_flush_queue
v3:
 - remove unnecessary '{}' pair.
v4:
 - let spinlock to protect 'fq->rq_status'
v5:
 - move rq_status after flush_running_idx member of struct blk_flush_queue
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-10-05 13:10:08 +02:00
Greg Kroah-Hartman
abfd9e9bf7 This is the 4.19.76 stable release
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Merge 4.19.76 into android-4.19

Changes in 4.19.76
	Revert "Bluetooth: validate BLE connection interval updates"
	net/ibmvnic: free reset work of removed device from queue
	RDMA/restrack: Protect from reentry to resource return path
	powerpc/xive: Fix bogus error code returned by OPAL
	drm/amd/display: readd -msse2 to prevent Clang from emitting libcalls to undefined SW FP routines
	IB/core: Add an unbound WQ type to the new CQ API
	HID: prodikeys: Fix general protection fault during probe
	HID: sony: Fix memory corruption issue on cleanup.
	HID: logitech: Fix general protection fault caused by Logitech driver
	HID: hidraw: Fix invalid read in hidraw_ioctl
	HID: Add quirk for HP X500 PIXART OEM mouse
	mtd: cfi_cmdset_0002: Use chip_good() to retry in do_write_oneword()
	crypto: talitos - fix missing break in switch statement
	CIFS: fix deadlock in cached root handling
	net/mlx5e: Set ECN for received packets using CQE indication
	net/mlx5e: don't set CHECKSUM_COMPLETE on SCTP packets
	mlx5: fix get_ip_proto()
	net/mlx5e: Allow reporting of checksum unnecessary
	net/mlx5e: XDP, Avoid checksum complete when XDP prog is loaded
	net/mlx5e: Rx, Fixup skb checksum for packets with tail padding
	net/mlx5e: Rx, Check ip headers sanity
	iwlwifi: mvm: send BCAST management frames to the right station
	iwlwifi: mvm: always init rs_fw with 20MHz bandwidth rates
	media: tvp5150: fix switch exit in set control handler
	ASoC: Intel: cht_bsw_max98090_ti: Enable codec clock once and keep it enabled
	ASoC: fsl: Fix of-node refcount unbalance in fsl_ssi_probe_from_dt()
	ALSA: usb-audio: Add Hiby device family to quirks for native DSD support
	ALSA: usb-audio: Add DSD support for EVGA NU Audio
	ALSA: dice: fix wrong packet parameter for Alesis iO26
	ALSA: hda - Add laptop imic fixup for ASUS M9V laptop
	ALSA: hda - Apply AMD controller workaround for Raven platform
	objtool: Clobber user CFLAGS variable
	pinctrl: sprd: Use define directive for sprd_pinconf_params values
	power: supply: sysfs: ratelimit property read error message
	locking/lockdep: Add debug_locks check in __lock_downgrade()
	scsi: qla2xxx: Turn off IOCB timeout timer on IOCB completion
	scsi: qla2xxx: Remove all rports if fabric scan retry fails
	scsi: qla2xxx: Return switch command on a timeout
	Revert "drm/amd/powerplay: Enable/Disable NBPSTATE on On/OFF of UVD"
	bpf: libbpf: retry loading program on EAGAIN
	irqchip/gic-v3-its: Fix LPI release for Multi-MSI devices
	f2fs: check all the data segments against all node ones
	PCI: hv: Avoid use of hv_pci_dev->pci_slot after freeing it
	bcache: remove redundant LIST_HEAD(journal) from run_cache_set()
	initramfs: don't free a non-existent initrd
	blk-mq: change gfp flags to GFP_NOIO in blk_mq_realloc_hw_ctxs
	blk-mq: move cancel of requeue_work to the front of blk_exit_queue
	Revert "f2fs: avoid out-of-range memory access"
	dm zoned: fix invalid memory access
	net/ibmvnic: Fix missing { in __ibmvnic_reset
	f2fs: fix to do sanity check on segment bitmap of LFS curseg
	drm: Flush output polling on shutdown
	net: don't warn in inet diag when IPV6 is disabled
	Bluetooth: btrtl: HCI reset on close for Realtek BT chip
	ACPI: video: Add new hw_changes_brightness quirk, set it on PB Easynote MZ35
	drm/nouveau/disp/nv50-: fix center/aspect-corrected scaling
	xfs: don't crash on null attr fork xfs_bmapi_read
	netfilter: nft_socket: fix erroneous socket assignment
	Bluetooth: btrtl: Additional Realtek 8822CE Bluetooth devices
	net_sched: check cops->tcf_block in tc_bind_tclass()
	net/rds: An rds_sock is added too early to the hash table
	net/rds: Check laddr_check before calling it
	f2fs: use generic EFSBADCRC/EFSCORRUPTED
	Linux 4.19.76

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Iee7c7dfb1bfcf16ad7eaffd9974d056622479030
2019-10-01 08:51:37 +02:00
zhengbin
40cdc71e11 blk-mq: move cancel of requeue_work to the front of blk_exit_queue
[ Upstream commit e26cc08265dda37d2acc8394604f220ef412299d ]

blk_exit_queue will free elevator_data, while blk_mq_requeue_work
will access it. Move cancel of requeue_work to the front of
blk_exit_queue to avoid use-after-free.

blk_exit_queue                blk_mq_requeue_work
  __elevator_exit               blk_mq_run_hw_queues
    blk_mq_exit_sched             blk_mq_run_hw_queue
      dd_exit_queue                 blk_mq_hctx_has_pending
        kfree(elevator_data)          blk_mq_sched_has_work
                                        dd_has_work

Fixes: fbc2a15e3433 ("blk-mq: move cancel of requeue_work into blk_mq_release")
Cc: stable@vger.kernel.org
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-10-01 08:26:10 +02:00
Jianchao Wang
313efb253d blk-mq: change gfp flags to GFP_NOIO in blk_mq_realloc_hw_ctxs
[ Upstream commit 5b202853ffbc54b29f23c4b1b5f3948efab489a2 ]

blk_mq_realloc_hw_ctxs could be invoked during update hw queues.
At the momemt, IO is blocked. Change the gfp flags from GFP_KERNEL
to GFP_NOIO to avoid forever hang during memory allocation in
blk_mq_realloc_hw_ctxs.

Signed-off-by: Jianchao Wang <jianchao.w.wang@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-10-01 08:26:10 +02:00
Greg Kroah-Hartman
8ca5759502 This is the 4.19.73 stable release
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Merge 4.19.73 into android-4.19

Changes in 4.19.73
	ALSA: hda - Fix potential endless loop at applying quirks
	ALSA: hda/realtek - Fix overridden device-specific initialization
	ALSA: hda/realtek - Add quirk for HP Pavilion 15
	ALSA: hda/realtek - Enable internal speaker & headset mic of ASUS UX431FL
	ALSA: hda/realtek - Fix the problem of two front mics on a ThinkCentre
	sched/fair: Don't assign runtime for throttled cfs_rq
	drm/vmwgfx: Fix double free in vmw_recv_msg()
	vhost/test: fix build for vhost test
	vhost/test: fix build for vhost test - again
	powerpc/tm: Fix FP/VMX unavailable exceptions inside a transaction
	batman-adv: fix uninit-value in batadv_netlink_get_ifindex()
	batman-adv: Only read OGM tvlv_len after buffer len check
	hv_sock: Fix hang when a connection is closed
	Blk-iolatency: warn on negative inflight IO counter
	blk-iolatency: fix STS_AGAIN handling
	{nl,mac}80211: fix interface combinations on crypto controlled devices
	timekeeping: Use proper ktime_add when adding nsecs in coarse offset
	selftests: fib_rule_tests: use pre-defined DEV_ADDR
	x86/ftrace: Fix warning and considate ftrace_jmp_replace() and ftrace_call_replace()
	powerpc/64: mark start_here_multiplatform as __ref
	media: stm32-dcmi: fix irq = 0 case
	arm64: dts: rockchip: enable usb-host regulators at boot on rk3328-rock64
	scripts/decode_stacktrace: match basepath using shell prefix operator, not regex
	riscv: remove unused variable in ftrace
	nvme-fc: use separate work queue to avoid warning
	clk: s2mps11: Add used attribute to s2mps11_dt_match
	remoteproc: qcom: q6v5: shore up resource probe handling
	modules: always page-align module section allocations
	kernel/module: Fix mem leak in module_add_modinfo_attrs
	drm/i915: Re-apply "Perform link quality check, unconditionally during long pulse"
	media: cec/v4l2: move V4L2 specific CEC functions to V4L2
	media: cec: remove cec-edid.c
	scsi: qla2xxx: Move log messages before issuing command to firmware
	keys: Fix the use of the C++ keyword "private" in uapi/linux/keyctl.h
	Drivers: hv: kvp: Fix two "this statement may fall through" warnings
	x86, hibernate: Fix nosave_regions setup for hibernation
	remoteproc: qcom: q6v5-mss: add SCM probe dependency
	drm/amdgpu/gfx9: Update gfx9 golden settings.
	drm/amdgpu: Update gc_9_0 golden settings.
	KVM: x86: hyperv: enforce vp_index < KVM_MAX_VCPUS
	KVM: x86: hyperv: consistently use 'hv_vcpu' for 'struct kvm_vcpu_hv' variables
	KVM: x86: hyperv: keep track of mismatched VP indexes
	KVM: hyperv: define VP assist page helpers
	x86/kvm/lapic: preserve gfn_to_hva_cache len on cache reinit
	drm/i915: Fix intel_dp_mst_best_encoder()
	drm/i915: Rename PLANE_CTL_DECOMPRESSION_ENABLE
	drm/i915/gen9+: Fix initial readout for Y tiled framebuffers
	drm/atomic_helper: Disallow new modesets on unregistered connectors
	Drivers: hv: kvp: Fix the indentation of some "break" statements
	Drivers: hv: kvp: Fix the recent regression caused by incorrect clean-up
	powerplay: Respect units on max dcfclk watermark
	drm/amd/pp: Fix truncated clock value when set watermark
	drm/amd/dm: Understand why attaching path/tile properties are needed
	ARM: davinci: da8xx: define gpio interrupts as separate resources
	ARM: davinci: dm365: define gpio interrupts as separate resources
	ARM: davinci: dm646x: define gpio interrupts as separate resources
	ARM: davinci: dm355: define gpio interrupts as separate resources
	ARM: davinci: dm644x: define gpio interrupts as separate resources
	s390/zcrypt: reinit ap queue state machine during device probe
	media: vim2m: use workqueue
	media: vim2m: use cancel_delayed_work_sync instead of flush_schedule_work
	drm/i915: Restore sane defaults for KMS on GEM error load
	drm/i915: Cleanup gt powerstate from gem
	KVM: PPC: Book3S HV: Fix race between kvm_unmap_hva_range and MMU mode switch
	Btrfs: clean up scrub is_dev_replace parameter
	Btrfs: fix deadlock with memory reclaim during scrub
	btrfs: Remove extent_io_ops::fill_delalloc
	btrfs: Fix error handling in btrfs_cleanup_ordered_extents
	scsi: megaraid_sas: Fix combined reply queue mode detection
	scsi: megaraid_sas: Add check for reset adapter bit
	scsi: megaraid_sas: Use 63-bit DMA addressing
	powerpc/pkeys: Fix handling of pkey state across fork()
	btrfs: volumes: Make sure no dev extent is beyond device boundary
	btrfs: Use real device structure to verify dev extent
	media: vim2m: only cancel work if it is for right context
	ARC: show_regs: lockdep: re-enable preemption
	ARC: mm: do_page_fault fixes #1: relinquish mmap_sem if signal arrives while handle_mm_fault
	IB/uverbs: Fix OOPs upon device disassociation
	crypto: ccree - fix resume race condition on init
	crypto: ccree - add missing inline qualifier
	drm/vblank: Allow dynamic per-crtc max_vblank_count
	drm/i915/ilk: Fix warning when reading emon_status with no output
	mfd: Kconfig: Fix I2C_DESIGNWARE_PLATFORM dependencies
	tpm: Fix some name collisions with drivers/char/tpm.h
	bcache: replace hard coded number with BUCKET_GC_GEN_MAX
	bcache: treat stale && dirty keys as bad keys
	KVM: VMX: Compare only a single byte for VMCS' "launched" in vCPU-run
	iio: adc: exynos-adc: Add S5PV210 variant
	dt-bindings: iio: adc: exynos-adc: Add S5PV210 variant
	iio: adc: exynos-adc: Use proper number of channels for Exynos4x12
	mt76: fix corrupted software generated tx CCMP PN
	drm/nouveau: Don't WARN_ON VCPI allocation failures
	iwlwifi: fix devices with PCI Device ID 0x34F0 and 11ac RF modules
	iwlwifi: add new card for 9260 series
	x86/kvmclock: set offset for kvm unstable clock
	spi: spi-gpio: fix SPI_CS_HIGH capability
	powerpc/kvm: Save and restore host AMR/IAMR/UAMOR
	mmc: renesas_sdhi: Fix card initialization failure in high speed mode
	btrfs: scrub: pass fs_info to scrub_setup_ctx
	btrfs: scrub: move scrub_setup_ctx allocation out of device_list_mutex
	btrfs: scrub: fix circular locking dependency warning
	btrfs: init csum_list before possible free
	PCI: qcom: Fix error handling in runtime PM support
	PCI: qcom: Don't deassert reset GPIO during probe
	drm: add __user attribute to ptr_to_compat()
	CIFS: Fix error paths in writeback code
	CIFS: Fix leaking locked VFS cache pages in writeback retry
	drm/i915: Handle vm_mmap error during I915_GEM_MMAP ioctl with WC set
	drm/i915: Sanity check mmap length against object size
	usb: typec: tcpm: Try PD-2.0 if sink does not respond to 3.0 source-caps
	arm64: dts: stratix10: add the sysmgr-syscon property from the gmac's
	IB/mlx5: Reset access mask when looping inside page fault handler
	kvm: mmu: Fix overflow on kvm mmu page limit calculation
	x86/kvm: move kvm_load/put_guest_xcr0 into atomic context
	KVM: x86: Always use 32-bit SMRAM save state for 32-bit kernels
	cifs: Fix lease buffer length error
	media: i2c: tda1997x: select V4L2_FWNODE
	ext4: protect journal inode's blocks using block_validity
	ARM: dts: qcom: ipq4019: fix PCI range
	ARM: dts: qcom: ipq4019: Fix MSI IRQ type
	ARM: dts: qcom: ipq4019: enlarge PCIe BAR range
	dt-bindings: mmc: Add supports-cqe property
	dt-bindings: mmc: Add disable-cqe-dcmd property.
	PCI: Add macro for Switchtec quirk declarations
	PCI: Reset Lenovo ThinkPad P50 nvgpu at boot if necessary
	dm mpath: fix missing call of path selector type->end_io
	blk-mq: free hw queue's resource in hctx's release handler
	mmc: sdhci-pci: Add support for Intel CML
	PCI: dwc: Use devm_pci_alloc_host_bridge() to simplify code
	cifs: smbd: take an array of reqeusts when sending upper layer data
	dm crypt: move detailed message into debug level
	signal/arc: Use force_sig_fault where appropriate
	ARC: mm: fix uninitialised signal code in do_page_fault
	ARC: mm: SIGSEGV userspace trying to access kernel virtual memory
	drm/amdkfd: Add missing Polaris10 ID
	kvm: Check irqchip mode before assign irqfd
	drm/amdgpu: fix ring test failure issue during s3 in vce 3.0 (V2)
	drm/amdgpu/{uvd,vcn}: fetch ring's read_ptr after alloc
	Btrfs: fix race between block group removal and block group allocation
	cifs: add spinlock for the openFileList to cifsInodeInfo
	clk: tegra: Fix maximum audio sync clock for Tegra124/210
	clk: tegra210: Fix default rates for HDA clocks
	IB/hfi1: Avoid hardlockup with flushlist_lock
	apparmor: reset pos on failure to unpack for various functions
	scsi: target/core: Use the SECTOR_SHIFT constant
	scsi: target/iblock: Fix overrun in WRITE SAME emulation
	staging: wilc1000: fix error path cleanup in wilc_wlan_initialize()
	scsi: zfcp: fix request object use-after-free in send path causing wrong traces
	cifs: Properly handle auto disabling of serverino option
	ALSA: hda - Don't resume forcibly i915 HDMI/DP codec
	ceph: use ceph_evict_inode to cleanup inode's resource
	KVM: x86: optimize check for valid PAT value
	KVM: VMX: Always signal #GP on WRMSR to MSR_IA32_CR_PAT with bad value
	KVM: VMX: Fix handling of #MC that occurs during VM-Entry
	KVM: VMX: check CPUID before allowing read/write of IA32_XSS
	KVM: PPC: Use ccr field in pt_regs struct embedded in vcpu struct
	KVM: PPC: Book3S HV: Fix CR0 setting in TM emulation
	ARM: dts: gemini: Set DIR-685 SPI CS as active low
	RDMA/srp: Document srp_parse_in() arguments
	RDMA/srp: Accept again source addresses that do not have a port number
	btrfs: correctly validate compression type
	resource: Include resource end in walk_*() interfaces
	resource: Fix find_next_iomem_res() iteration issue
	resource: fix locking in find_next_iomem_res()
	pstore: Fix double-free in pstore_mkfile() failure path
	dm thin metadata: check if in fail_io mode when setting needs_check
	drm/panel: Add support for Armadeus ST0700 Adapt
	ALSA: hda - Fix intermittent CORB/RIRB stall on Intel chips
	powerpc/mm: Limit rma_size to 1TB when running without HV mode
	iommu/iova: Remove stale cached32_node
	gpio: don't WARN() on NULL descs if gpiolib is disabled
	i2c: at91: disable TXRDY interrupt after sending data
	i2c: at91: fix clk_offset for sama5d2
	mm/migrate.c: initialize pud_entry in migrate_vma()
	iio: adc: gyroadc: fix uninitialized return code
	NFSv4: Fix delegation state recovery
	bcache: only clear BTREE_NODE_dirty bit when it is set
	bcache: add comments for mutex_lock(&b->write_lock)
	bcache: fix race in btree_flush_write()
	drm/i915: Make sure cdclk is high enough for DP audio on VLV/CHV
	virtio/s390: fix race on airq_areas[]
	drm/atomic_helper: Allow DPMS On<->Off changes for unregistered connectors
	ext4: don't perform block validity checks on the journal inode
	ext4: fix block validity checks for journal inodes using indirect blocks
	ext4: unsigned int compared against zero
	PCI: Reset both NVIDIA GPU and HDA in ThinkPad P50 workaround
	powerpc/tm: Remove msr_tm_active()
	powerpc/tm: Fix restoring FP/VMX facility incorrectly on interrupts
	vhost: make sure log_num < in_num
	Linux 4.19.73

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I7bc57825aeb36759bb8e8726888da9af06392c09
2019-09-16 09:35:02 +02:00