Commit graph

44872 commits

Author SHA1 Message Date
Linus Torvalds
b3f4ef0bf2 - cleanup of dma_buf_export()
- correction of copy-paste stupidity while doing the cleanup
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJVOizVAAoJEAG+/NWsLn5bAqIP/2EP/eC34lYCdYkQ2rUnOJXr
 vWSlyRi+RCjDR5y4hkjp6q8R0WAQSuOPcUZ8FRZjN5DO3pQF3ZEHnGbM/7O2SIeb
 cthGcue5PIOzj55ftmefJCa5PArqK1XnQT09gEisvXKxjdTfYEpSyRV1WKmtI6N2
 SrIKJaj5Kx18CV56+AvgsyDKZ7DuKeKCHMoRrTInfUr1gjifwZWppkSkH79LMkGP
 p/dFbV2Ia2Zetc4k6j72jpIxMhJnPSXh8SpaeQ6EpRfTy1E1o9qCjruE2RfFk1wa
 VF+uHNpjyQRVaJH4RwLVPqrDtZqHgB1LqRj2fm9wKhagrZ83G/h7MKnWGqIB9yGf
 l6HM8ReEKTFOzj9LxRGdBltL/ZdInEUcBf8OgkIT3R4lm1RZc55Erfta7vOXl31v
 2mkBYcAq4vOTBJkcIxS0TPLoHFJScwj/cdV16AHAgnR263/Ulh7RDwuEIMXEQ9C+
 65Nwm0MNWS2UiGwXnMz/7UT1u5NdxhJ1j6e7iWaRBL6mh1MuzidiR5TLx6+Bdroo
 KQ1N2qyf1PxXUR995JsWOMivkQWKPvO53jpaEdVKt4uTSvEuunvHembqtHinNfj4
 ljCjO+Bc0ust8wlyilIUmh0hsPBOM3z66XxbTcCFp+gjcJW/L+VfBxnKlokhN9lH
 Y6Q4uwY13gJXGZ806gDk
 =ULmO
 -----END PGP SIGNATURE-----

Merge tag 'dma-buf-for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/sumits/dma-buf

Pull dma-buf updates from Sumit Semwal:
 "Minor cleanup only; this could've gone in for the 4.0 merge window,
  but for a copy-paste stupidity from me.

  It has been in the for-next since then, and no issues reported.

   - cleanup of dma_buf_export()

   - correction of copy-paste stupidity while doing the cleanup"

* tag 'dma-buf-for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/sumits/dma-buf:
  staging: android: ion: fix wrong init of dma_buf_export_info
  dma-buf: cleanup dma_buf_export() to make it easily extensible
2015-04-24 10:05:39 -07:00
Linus Torvalds
d6a4c0e5d3 Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma
Pull slave-dmaengine updates from Vinod Koul:

 - new drivers for:
        - Ingenic JZ4780 controller
        - APM X-Gene controller
        - Freescale RaidEngine device
        - Renesas USB Controller

  - remove device_alloc_chan_resources dummy handlers

  - sh driver cleanups for peri peri and related emmc and asoc patches
    as well

  - fixes and enhancements spread over the drivers

* 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (59 commits)
  dmaengine: dw: don't prompt for DW_DMAC_CORE
  dmaengine: shdmac: avoid unused variable warnings
  dmaengine: fix platform_no_drv_owner.cocci warnings
  dmaengine: pch_dma: fix memory leak on failure path in pch_dma_probe()
  dmaengine: at_xdmac: unlock spin lock before return
  dmaengine: xgene: devm_ioremap() returns NULL on error
  dmaengine: xgene: buffer overflow in xgene_dma_init_channels()
  dmaengine: usb-dmac: Fix dereferencing freed memory 'desc'
  dmaengine: sa11x0: report slave capabilities to upper layers
  dmaengine: vdma: Fix compilation warnings
  dmaengine: fsl_raid: statify fsl_re_chan_probe
  dmaengine: Driver support for FSL RaidEngine device.
  dmaengine: xgene_dma_init_ring_mngr() can be static
  Documentation: dma: Add documentation for the APM X-Gene SoC DMA device DTS binding
  arm64: dts: Add APM X-Gene SoC DMA device and DMA clock DTS nodes
  dmaengine: Add support for APM X-Gene SoC DMA engine driver
  dmaengine: usb-dmac: Add Renesas USB DMA Controller (USB-DMAC) driver
  dmaengine: renesas,usb-dmac: Add device tree bindings documentation
  dmaengine: edma: fixed wrongly initialized data parameter to the edma callback
  dmaengine: ste_dma40: fix implicit conversion
  ...
2015-04-24 09:49:37 -07:00
Linus Torvalds
474095e46c md updates for 4.1
Highlights:
 
 - "experimental" code for managing md/raid1 across a cluster using
   DLM.  Code is not ready for general use and triggers a WARNING if used.
   However it is looking good and mostly done and having in mainline
   will help co-ordinate development.
 - RAID5/6 can now batch multiple (4K wide) stripe_heads so as to
   handle a full (chunk wide) stripe as a single unit.
 - RAID6 can now perform read-modify-write cycles which should
   help performance on larger arrays: 6 or more devices.
 - RAID5/6 stripe cache now grows and shrinks dynamically.  The value
   set is used as a minimum.
 - Resync is now allowed to go a little faster than the 'mininum' when
   there is competing IO.  How much faster depends on the speed of the
   devices, so the effective minimum should scale with device speed to
   some extent.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIVAwUAVTbIxDnsnt1WYoG5AQIgAA//Z9FlEpkHcJJ75WGjrXgGJPyNTfEZOkoz
 jnD8PpBY2Afp341vMatd0XKErdEAhuPQmJMAa+tbxht6pk77X3fSzXghGA8FEafg
 yazn5pfBt6NXmepV4vhl/+LNYuWRxxLSA9EDm7wEg+tiO0UEts+a0w2TSXzcT1w+
 30Yi1EjAlTaJ5yjlBHUOtTXWE43D6RKnUr6FMy2dRlnzlFyDlezRMChWo9v6OkQF
 YqJ20FcvmJdLHY/6Yif3jvpm7eQecMqdCZENTvW/mJI86zqf6E+ToCYS1VNjfDnK
 ud61iU9eshu4WtNWBG6KLuHBD0grO1NaEL7/S16w1KdNJMhYgiK8WussvIAJEesA
 5SlETM7Y/1XFq8puwlAq2/tuPfhZ+TFxnAwce/C3hMTDcYAACnS/R6INFQXqGvy3
 nX1NLogrCycX8oqxv3jTFKLVqIVwlkSlHcUGzIWjcfCF37StcXFKI5q862agyg2+
 NNocFMuXhPPM1YcB9JJSo2nCsor4e9tTdVEZlFm2B3cc8LJ9BLWUMSoi1h7VK/1g
 P7psnPIjz7/cdI2TZTFjGTZ0Kvhx/NTYp41AZealDNxeGWUNM+5xGZnUF8QRBc/E
 0dGHtEAah834BDQFvNnJtuuh/s+KwbvswjNP+njoBsHjIQIvngDABpOwpIkdqF6r
 diQ2gUPnHN0=
 =OHG6
 -----END PGP SIGNATURE-----

Merge tag 'md/4.1' of git://neil.brown.name/md

Pull md updates from Neil Brown:
 "More updates that usual this time.  A few have performance impacts
  which hould mostly be positive, but RAID5 (in particular) can be very
  work-load ensitive...  We'll have to wait and see.

  Highlights:

   - "experimental" code for managing md/raid1 across a cluster using
     DLM.  Code is not ready for general use and triggers a WARNING if
     used.  However it is looking good and mostly done and having in
     mainline will help co-ordinate development.

   - RAID5/6 can now batch multiple (4K wide) stripe_heads so as to
     handle a full (chunk wide) stripe as a single unit.

   - RAID6 can now perform read-modify-write cycles which should help
     performance on larger arrays: 6 or more devices.

   - RAID5/6 stripe cache now grows and shrinks dynamically.  The value
     set is used as a minimum.

   - Resync is now allowed to go a little faster than the 'mininum' when
     there is competing IO.  How much faster depends on the speed of the
     devices, so the effective minimum should scale with device speed to
     some extent"

* tag 'md/4.1' of git://neil.brown.name/md: (58 commits)
  md/raid5: don't do chunk aligned read on degraded array.
  md/raid5: allow the stripe_cache to grow and shrink.
  md/raid5: change ->inactive_blocked to a bit-flag.
  md/raid5: move max_nr_stripes management into grow_one_stripe and drop_one_stripe
  md/raid5: pass gfp_t arg to grow_one_stripe()
  md/raid5: introduce configuration option rmw_level
  md/raid5: activate raid6 rmw feature
  md/raid6 algorithms: xor_syndrome() for SSE2
  md/raid6 algorithms: xor_syndrome() for generic int
  md/raid6 algorithms: improve test program
  md/raid6 algorithms: delta syndrome functions
  raid5: handle expansion/resync case with stripe batching
  raid5: handle io error of batch list
  RAID5: batch adjacent full stripe write
  raid5: track overwrite disk count
  raid5: add a new flag to track if a stripe can be batched
  raid5: use flex_array for scribble data
  md raid0: access mddev->queue (request queue member) conditionally because it is not set when accessed from dm-raid
  md: allow resync to go faster when there is competing IO.
  md: remove 'go_faster' option from ->sync_request()
  ...
2015-04-24 09:28:01 -07:00
Linus Torvalds
d56a669ca5 Devicetree updates for 4.1:
- DT endianness specification bindings
 - Big endian 8250 serial support
 - DT overlay unittest updates
 - Various DT doc updates
 - Compile fixes for OF_IRQ=n
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJVOG5kAAoJEMhvYp4jgsXihDgH/3pmPSjuRG1bhGssmnchHjWh
 SU2eS2MZnlD60UqRt7jd3smCX2qL83tfwpFhOvCT9Mz775E7ggmYq9fS8pCYAbaD
 x98mUrE2GzdUzlrL6RS8Z0ExjyGwbMoW3+cZtyPkmC6CsW0fwqEPmEyk7m+Hk8C3
 w3pWG06o+G8UjiFmwbr8Pki2ykxvucr22NCzH4SS6bAD4QOrQO3v48QkUg7XFlVc
 NHNzQbswL85uOJ7uuAbxg+s8TXkwcxUeMJEKldLrjuyppO3N1MjnOgCptnhVNOOb
 zK+IsS378jMiNjAg2ui/BLH60N5yadkgk4+L4iPPy+y/yR61NCVXxRe11IQJxb0=
 =rtv6
 -----END PGP SIGNATURE-----

Merge tag 'devicetree-for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull second batch of devicetree updates from Rob Herring:
 "As Grant mentioned in the first devicetree pull request, here is the
  2nd batch of DT changes for 4.1.  The main remaining item here is the
  endianness bindings and related 8250 driver support.

   - DT endianness specification bindings

   - big-endian 8250 serial support

   - DT overlay unittest updates

   - various DT doc updates

   - compile fixes for OF_IRQ=n"

* tag 'devicetree-for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  frv: add io{read,write}{16,32}be functions
  mn10300: add io{read,write}{16,32}be functions
  Documentation: DT bindings: add doc for Altera's SoCFPGA platform
  of: base: improve of_get_next_child() kernel-doc
  Doc: dt: arch_timer: discourage clock-frequency use
  of: unittest: overlay: Keep track of created overlays
  of/fdt: fix allocation size for device node path
  serial: of_serial: Support big-endian register accesses
  serial: 8250: Add support for big-endian MMIO accesses
  of: Document {little,big,native}-endian bindings
  of/fdt: Add endianness helper function for early init code
  of: Add helper function to check MMIO register endianness
  of/fdt: Remove "reg" data prints from early_init_dt_scan_memory
  of: add vendor prefix for Artesyn
  of: Add dummy of_irq_to_resource_table() for IRQ_OF=n
  of: OF_IRQ should depend on IRQ_DOMAIN
2015-04-24 08:46:18 -07:00
Linus Torvalds
836ee4874e Initial ACPI support for arm64:
This series introduces preliminary ACPI 5.1 support to the arm64 kernel
 using the "hardware reduced" profile. We don't support any peripherals
 yet, so it's fairly limited in scope:
 
 - Memory init (UEFI)
 - ACPI discovery (RSDP via UEFI)
 - CPU init (FADT)
 - GIC init (MADT)
 - SMP boot (MADT + PSCI)
 - ACPI Kconfig options (dependent on EXPERT)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABCgAGBQJVNOC2AAoJELescNyEwWM08dIH/1Pn5xa04wwNDn0MOpbuQMk2
 kHM7hx69fbXflTJpnZRVyFBjRxxr5qilA7rljAFLnFeF8Fcll/s5VNy7ElHKLISq
 CB0ywgUfOd/sFJH57rcc67pC1b/XuqTbE1u1NFwvp2R3j1kGAEJWNA6SyxIP4bbc
 NO5jScx0lQOJ3rrPAXBW8qlGkeUk7TPOQJtMrpftNXlFLFrR63rPaEmMZ9dWepBF
 aRE4GXPvyUhpyv5o9RvlN5l8bQttiRJ3f9QjyG7NYhX0PXH3DyvGUzYlk2IoZtID
 v3ssCQH3uRsAZHIBhaTyNqFnUIaDR825bvGqyG/tj2Dt3kQZiF+QrfnU5D9TuMw=
 =zLJn
 -----END PGP SIGNATURE-----

Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull initial ACPI support for arm64 from Will Deacon:
 "This series introduces preliminary ACPI 5.1 support to the arm64
  kernel using the "hardware reduced" profile.  We don't support any
  peripherals yet, so it's fairly limited in scope:

   - MEMORY init (UEFI)

   - ACPI discovery (RSDP via UEFI)

   - CPU init (FADT)

   - GIC init (MADT)

   - SMP boot (MADT + PSCI)

   - ACPI Kconfig options (dependent on EXPERT)

  ACPI for arm64 has been in development for a while now and hardware
  has been available that can boot with either FDT or ACPI tables.  This
  has been made possible by both changes to the ACPI spec to cater for
  ARM-based machines (known as "hardware-reduced" in ACPI parlance) but
  also a Linaro-driven effort to get this supported on top of the Linux
  kernel.  This pull request is the result of that work.

  These changes allow us to initialise the CPUs, interrupt controller,
  and timers via ACPI tables, with memory information and cmdline coming
  from EFI.  We don't support a hybrid ACPI/FDT scheme.  Of course,
  there is still plenty of work to do (a serial console would be nice!)
  but I expect that to happen on a per-driver basis after this core
  series has been merged.

  Anyway, the diff stat here is fairly horrible, but splitting this up
  and merging it via all the different subsystems would have been
  extremely painful.  Instead, we've got all the relevant Acks in place
  and I've not seen anything other than trivial (Kconfig) conflicts in
  -next (for completeness, I've included my resolution below).  Nearly
  half of the insertions fall under Documentation/.

  So, we'll see how this goes.  Right now, it all depends on EXPERT and
  I fully expect people to use FDT by default for the immediate future"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (31 commits)
  ARM64 / ACPI: make acpi_map_gic_cpu_interface() as void function
  ARM64 / ACPI: Ignore the return error value of acpi_map_gic_cpu_interface()
  ARM64 / ACPI: fix usage of acpi_map_gic_cpu_interface
  ARM64: kernel: acpi: honour acpi=force command line parameter
  ARM64: kernel: acpi: refactor ACPI tables init and checks
  ARM64: kernel: psci: let ACPI probe PSCI version
  ARM64: kernel: psci: factor out probe function
  ACPI: move arm64 GSI IRQ model to generic GSI IRQ layer
  ARM64 / ACPI: Don't unflatten device tree if acpi=force is passed
  ARM64 / ACPI: additions of ACPI documentation for arm64
  Documentation: ACPI for ARM64
  ARM64 / ACPI: Enable ARM64 in Kconfig
  XEN / ACPI: Make XEN ACPI depend on X86
  ARM64 / ACPI: Select ACPI_REDUCED_HARDWARE_ONLY if ACPI is enabled on ARM64
  clocksource / arch_timer: Parse GTDT to initialize arch timer
  irqchip: Add GICv2 specific ACPI boot support
  ARM64 / ACPI: Introduce ACPI_IRQ_MODEL_GIC and register device's gsi
  ACPI / processor: Make it possible to get CPU hardware ID via GICC
  ACPI / processor: Introduce phys_cpuid_t for CPU hardware ID
  ARM64 / ACPI: Parse MADT for SMP initialization
  ...
2015-04-24 08:23:45 -07:00
Linus Torvalds
860448cf76 Merge branch 'for-4.1' of git://linux-nfs.org/~bfields/linux
Pull nfsd updates from Bruce Fields:
 "A quiet cycle this time; this is basically entirely bugfixes.

  The few that aren't cc'd to stable are cleanup or seemed unlikely to
  affect anyone much"

* 'for-4.1' of git://linux-nfs.org/~bfields/linux:
  uapi: Remove kernel internal declaration
  nfsd: fix nsfd startup race triggering BUG_ON
  nfsd: eliminate NFSD_DEBUG
  nfsd4: fix READ permission checking
  nfsd4: disallow SEEK with special stateids
  nfsd4: disallow ALLOCATE with special stateids
  nfsd: add NFSEXP_PNFS to the exflags array
  nfsd: Remove duplicate macro define for max sec label length
  nfsd: allow setting acls with unenforceable DENYs
  nfsd: NFSD_FAULT_INJECTION depends on DEBUG_FS
  nfsd: remove unused status arg to nfsd4_cleanup_open_state
  nfsd: remove bogus setting of status in nfsd4_process_open2
  NFSD: Use correct reply size calculating function
  NFSD: Using path_equal() for checking two paths
2015-04-24 07:46:05 -07:00
Linus Torvalds
1aef882f02 xfs: update for 4.1-rc1
This update contains:
 o RENAME_WHITEOUT support
 o conversion of per-cpu superblock accounting to use generic counters
 o new inode mmap lock so that we can lock page faults out of truncate, hole
   punch and other direct extent manipulation functions to avoid racing mmap
   writes from causing data corruption
 o rework of direct IO submission and completion to solve data corruption issue
   when running concurrent extending DIO writes. Also solves problem of running
   IO completion transactions in interrupt context during size extending AIO
   writes.
 o FALLOC_FL_INSERT_RANGE support for inserting holes into a file via direct
   extent manipulation to avoid needing to copy data within the file
 o attribute block header field overflow fix for 64k block size filesystems
 o Lots of changes to log messaging to be more informative and concise when
   errors occur. Also prevent a lot of unnecessary log spamming due to cascading
   failures in error conditions.
 o lots of cleanups and bug fixes
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIcBAABAgAGBQJVOE8oAAoJEK3oKUf0dfodx1kQAIIH8CwqcBrIslOntfHlFPHz
 P9aQl5uiI6JcnFqMiHG6mfnjWGpn+Z6XMDGIBwrSTzHj8IEnHTeXqYiS6SDPAnrH
 +VmlJEvW01ucAv7vcXKPrfutcc8dxLpy4fs63HOWmXh4rmrTcpel5S+0JSQxyGd6
 OriLg1nfD4Sid7R9CFEXAKLghJFK+gbao2CmT0wo6ZrTwiZl2p62Y187ou+d+u3k
 BRol99pI/Sp9bKpWZpUv3q2RnfD1v/k4oDP/JG4Ohdt2dx+nDqCjLvL8B5hJu74B
 ZI+R+N28sAkMmbtR61kk06F7MS9RZqzBNIZalugaSuspKoenDZzmURZX+i77ogPQ
 Ii3XLUMUzdwmi55/tBhpI7VkpFxahaEbWzTT1sMBh/Ka3GXO56BMIYTPvntjoN4w
 ElcbFAMAZl8O56ruGBnc/k72CfFbq8qp93KkOfBGIKwwiPN+eCK8bQYL4G3sIZzx
 f6k/WLbbShyViX9qoWLiX7qUfvh0NU/EcmGcJBsTmn0NFNOP4WmuojAq6SrvTgEz
 No6zYJtnJvEPDa/v5A0dZyYfLqz2cTkEyTM9uwSixcCa1qAS+8IBcCGgTKfQOYkV
 hCUWugiHwj4OQ/6WgP6oYLtIYdw6gqXgUKZy1Iy+ThDRwLbg9emYWixQTi4GAuRO
 2SEBbFGSk7KIpoPENDUC
 =WE6f
 -----END PGP SIGNATURE-----

Merge tag 'xfs-for-linus-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs

Pull xfs update from Dave Chinner:
 "This update contains:

   - RENAME_WHITEOUT support

   - conversion of per-cpu superblock accounting to use generic counters

   - new inode mmap lock so that we can lock page faults out of
     truncate, hole punch and other direct extent manipulation functions
     to avoid racing mmap writes from causing data corruption

   - rework of direct IO submission and completion to solve data
     corruption issue when running concurrent extending DIO writes.
     Also solves problem of running IO completion transactions in
     interrupt context during size extending AIO writes.

   - FALLOC_FL_INSERT_RANGE support for inserting holes into a file via
     direct extent manipulation to avoid needing to copy data within the
     file

   - attribute block header field overflow fix for 64k block size
     filesystems

   - Lots of changes to log messaging to be more informative and concise
     when errors occur.  Also prevent a lot of unnecessary log spamming
     due to cascading failures in error conditions.

   - lots of cleanups and bug fixes

  One thing of note is the direct IO fixes that we merged last week
  after the window opened.  Even though a little late, they fix a user
  reported data corruption and have been pretty well tested.  I figured
  there was not much point waiting another 2 weeks for -rc1 to be
  released just so I could send them to you..."

* tag 'xfs-for-linus-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs: (49 commits)
  xfs: using generic_file_direct_write() is unnecessary
  xfs: direct IO EOF zeroing needs to drain AIO
  xfs: DIO write completion size updates race
  xfs: DIO writes within EOF don't need an ioend
  xfs: handle DIO overwrite EOF update completion correctly
  xfs: DIO needs an ioend for writes
  xfs: move DIO mapping size calculation
  xfs: factor DIO write mapping from get_blocks
  xfs: unlock i_mutex in xfs_break_layouts
  xfs: kill unnecessary firstused overflow check on attr3 leaf removal
  xfs: use larger in-core attr firstused field and detect overflow
  xfs: pass attr geometry to attr leaf header conversion functions
  xfs: disallow ro->rw remount on norecovery mount
  xfs: xfs_shift_file_space can be static
  xfs: Add support FALLOC_FL_INSERT_RANGE for fallocate
  fs: Add support FALLOC_FL_INSERT_RANGE for fallocate
  xfs: Fix incorrect positive ENOMEM return
  xfs: xfs_mru_cache_insert() should use GFP_NOFS
  xfs: %pF is only for function pointers
  xfs: fix shadow warning in xfs_da3_root_split()
  ...
2015-04-24 07:08:41 -07:00
Linus Torvalds
a62d016cec Common MTD:
* Add Kconfig option for keeping both the 'master' and 'partition' MTDs
    registered as devices. This would really make a better default if we could
    do it over, as it allows a lot more flexibility in (1) determining the flash
    topology of the system from user-space and (2) adding temporary partitions
    at runtime (ioctl(BLKPG)). Unfortunately, this would possibly cause
    user-space breakage, as it will cause renumbering of the /dev/mtdX devices.
    We'll see if we can change this in the future, as there have already been a
    few people looking for this feature, and I know others have just been
    working around our current limitations instead of fixing them this way.
  * Along with the previous change, add some additional information to sysfs, so
    user-space can read the offset of each partition within its master device
 
 SPI NOR:
  * add new device tree compatible binding to represent the mostly-compatible
    class of SPI NOR flash which can be detected by their extended JEDEC ID
    bytes, cutting down the duplication of our ID tables
  * misc. new IDs
 
 Various other miscellaneous fixes and changes
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJVN9ypAAoJEFySrpd9RFgtaUQQAKmlCVMrxAKtF6U5jpzf07hA
 7ZrcMdUTSwS++dBIAgDl6JSuSGT5KRLrS1FOp60p+VAjbD9VFcRLUUQxahXW1tAh
 Dr8a3Akwd+lgIp77bZhWBY35dXmjIJ1GSzo7jdbJMDwAeDd3gBeSFTDoePsrCt6K
 0/NPOsQzCFDDr1lwuQh1LzkLLQfVAC3ImNCBm5smvyEfhxXqzC02HOLf8Z9VMGnY
 OxM9i0T6Ik3xeaaP/vH91sApmdn598gP5DB5cNr61YrZeVZmEoI4EWlOmagcYVC2
 Tef9Ng4YmHGXo65k7XcKRykAVWECYAGr4HKCDZ8tsbvpfdbQMS5wHEgxMsAdvb01
 aChcBNxf4w/Mh49fzjZppTlPN25FERRMnXt7CkUqQkqet9uDkD/5RNPl65ermeC7
 EKx2MoxnpXrfZ0EkSxqrfdzP0oQx0AqAkbCyLIN42Vbxl7ckFMN3WAPQ2NR2Aaoh
 SUiKwwaFFiK+C9qEytj0s+cmKPzsTzeQVYgp9NX64EfVQumqpsfbu6XIPV+FGy2i
 DvHvmTEvm4SpqMPSnhkmZ6DFSjuzvQdqzKtDyZmRppxHKgWUsXYdftGPMG0+ZbaG
 t4zysWfJG897TMVYLKY9pGqvouMuAVJ4kX1+iZbJc8dr4bwIzXIYuEGPLVv58gUO
 KjjlYk91/jFNmBW5anxC
 =aIsV
 -----END PGP SIGNATURE-----

Merge tag 'for-linus-20150422' of git://git.infradead.org/linux-mtd

Pull MTD updates from Brian Norris:
 "Common MTD:

   - Add Kconfig option for keeping both the 'master' and 'partition'
     MTDs registered as devices.  This would really make a better
     default if we could do it over, as it allows a lot more flexibility
     in (1) determining the flash topology of the system from user-space
     and (2) adding temporary partitions at runtime (ioctl(BLKPG)).

     Unfortunately, this would possibly cause user-space breakage, as it
     will cause renumbering of the /dev/mtdX devices.  We'll see if we
     can change this in the future, as there have already been a few
     people looking for this feature, and I know others have just been
     working around our current limitations instead of fixing them this
     way.

   - Along with the previous change, add some additional information to
     sysfs, so user-space can read the offset of each partition within
     its master device

  SPI NOR:

   - add new device tree compatible binding to represent the
     mostly-compatible class of SPI NOR flash which can be detected by
     their extended JEDEC ID bytes, cutting down the duplication of our
     ID tables

   - misc.  new IDs

  Various other miscellaneous fixes and changes"

* tag 'for-linus-20150422' of git://git.infradead.org/linux-mtd: (53 commits)
  mtd: spi-nor: Add support for Macronix mx25u6435f serial flash
  mtd: spi-nor: Add support for Winbond w25q64dw serial flash
  mtd: spi-nor: add support for the Winbond W25X05 flash
  mtd: spi-nor: support en25s64 device
  mtd: m25p80: bind to "nor-jedec" ID, for auto-detection
  Documentation: devicetree: m25p80: add "nor-jedec" binding
  mtd: Make MTD tests cancelable
  mtd: mtd_oobtest: Fix bitflip_limit usage in test case 3
  mtd: docg3: remove invalid __exit annotations
  mtd: fsl_ifc_nand: use msecs_to_jiffies for time conversion
  mtd: atmel_nand: don't map the ROM table if no pmecc table offset in DT
  mtd: atmel_nand: add a definition for the oob reserved bytes
  mtd: part: Remove partition overlap checks
  mtd: part: Add sysfs variable for offset of partition
  mtd: part: Create the master device node when partitioned
  mtd: ts5500_flash: Fix typo in MODULE_DESCRIPTION in ts5500_flash.c
  mtd: denali: Disable sub-page writes in Denali NAND driver
  mtd: pxa3xx_nand: cleanup wait_for_completion handling
  mtd: nand: gpmi: Check for scan_bbt() error
  mtd: nand: gpmi: fixup return type of wait_for_completion_timeout
  ...
2015-04-22 12:00:44 -07:00
Linus Torvalds
7c034dfd58 InfiniBand/RDMA updates for 4.1:
- IPoIB fixes from Doug Ledford and Erez Shitrit
  - iSER updates from Sagi Grimberg
  - mlx4 GUID handling changes from Yishai Hadas
  - other misc fixes
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABCAAGBQJVN9SzAAoJEENa44ZhAt0hWq4QAJRFrwoe9ubTextSHeTU0FkY
 CydiQtGWrhyAHTX/KtdB1Uv9FzGHc6gqkAOXImouacYTM9ffypMF6Oj4xIYIMQtz
 MvNlNm07KOtQYlubiaZWcP5BjdLfMZjQxb03/9smygLTBjm80dAEt5X1znx7YrqI
 ZfE+ibPdvRqVEvFZKfT2U0kGU6oEVKrbJEiUCoJPwwcghDZQl18YmGOxt5qdI2uO
 V+71ozwozT8utSIl7S2YTJZBdkJ7tLrqrX2D/D2jUAmh1rqHIDrsXXiZ44UJj82i
 oXuwqmHXfq1LfuC9kxCX5JJpGeLE7E3OoxM1zIev31710zPA0v57rNKKweCi2Tj6
 Z36B0SIRV4ipWr/sBhVDr1Ffc/uap3DOIEU9Z+t8rwhELCEVuxmNaNb0K1e5nPiy
 YOQYp/ctC0NslM4mqQJLhGMVl6H8PjodbM1whnYZLsF1+8clNvdtLYzy/cA5fGbO
 tngUGXu0YZGdwvfuQhi5FB45XLaErJaPcMH0QRI5G0JgtjvbzXiMlqWtekTUBi7W
 DJNQlVRI4S1RYRBYkq709ymXiWwTeh3rhH+ZJpM+aY8b0NR/lx+dNyesNG+7GBJH
 y5UOOUck0w+JbQzZo264I6a5e8pXq3kMi3BH8pF4Jbo5WvxSF6uriXb6Q1JzfH20
 Jn0J6W9ghCSfrhMI1zgQ
 =v1jB
 -----END PGP SIGNATURE-----

Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

Pull InfiniBand/RDMA updates from Roland Dreier:

 - IPoIB fixes from Doug Ledford and Erez Shitrit

 - iSER updates from Sagi Grimberg

 - mlx4 GUID handling changes from Yishai Hadas

 - other misc fixes

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (51 commits)
  mlx5: wrong page mask if CONFIG_ARCH_DMA_ADDR_T_64BIT enabled for 32Bit architectures
  IB/iser: Rewrite bounce buffer code path
  IB/iser: Bump version to 1.6
  IB/iser: Remove code duplication for a single DMA entry
  IB/iser: Pass struct iser_mem_reg to iser_fast_reg_mr and iser_reg_sig_mr
  IB/iser: Modify struct iser_mem_reg members
  IB/iser: Make fastreg pool cache friendly
  IB/iser: Move PI context alloc/free to routines
  IB/iser: Move fastreg descriptor pool get/put to helper functions
  IB/iser: Merge build page-vec into register page-vec
  IB/iser: Get rid of struct iser_rdma_regd
  IB/iser: Remove redundant assignments in iser_reg_page_vec
  IB/iser: Move memory reg/dereg routines to iser_memory.c
  IB/iser: Don't pass ib_device to fall_to_bounce_buff routine
  IB/iser: Remove a redundant struct iser_data_buf
  IB/iser: Remove redundant cmd_data_len calculation
  IB/iser: Fix wrong calculation of protection buffer length
  IB/iser: Handle fastreg/local_inv completion errors
  IB/iser: Fix unload during ep_poll wrong dereference
  ib_srpt: convert printk's to pr_* functions
  ...
2015-04-22 11:50:05 -07:00
Linus Torvalds
1204c46445 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client
Pull Ceph updates from Sage Weil:
 "This time around we have a collection of CephFS fixes from Zheng
  around MDS failure handling and snapshots, support for a new CRUSH
  straw2 algorithm (to sync up with userspace) and several RBD cleanups
  and fixes from Ilya, an error path leak fix from Taesoo, and then an
  assorted collection of cleanups from others"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (28 commits)
  rbd: rbd_wq comment is obsolete
  libceph: announce support for straw2 buckets
  crush: straw2 bucket type with an efficient 64-bit crush_ln()
  crush: ensuring at most num-rep osds are selected
  crush: drop unnecessary include from mapper.c
  ceph: fix uninline data function
  ceph: rename snapshot support
  ceph: fix null pointer dereference in send_mds_reconnect()
  ceph: hold on to exclusive caps on complete directories
  libceph: simplify our debugfs attr macro
  ceph: show non-default options only
  libceph: expose client options through debugfs
  libceph, ceph: split ceph_show_options()
  rbd: mark block queue as non-rotational
  libceph: don't overwrite specific con error msgs
  ceph: cleanup unsafe requests when reconnecting is denied
  ceph: don't zero i_wrbuffer_ref when reconnecting is denied
  ceph: don't mark dirty caps when there is no auth cap
  ceph: keep i_snap_realm while there are writers
  libceph: osdmap.h: Add missing format newlines
  ...
2015-04-22 11:30:10 -07:00
Linus Torvalds
b9bb6fb73b Some virtio internal cleanups, a new virtio device "virtio input", and
a change to allow the legacy virtio balloon.
 
 Most excitingly, some lguest work!  No seriously, I got some cleanup
 patches.
 
 Cheers,
 Rusty.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJVN1SjAAoJENkgDmzRrbjxeDoP+wZnZdG4cHNc6ifiNPkSed9m
 cKWV7L6uTxczdFKcTNpDShn2MW0XqbcHc+VdBH9Exl3+cyick6fuhpi6SjLby0g6
 a40RldysRMAc/K/dK40dG4qtSUT1uwDrOYNonMDjx1RAikO3DoTGUm4YgYZKSlM/
 pKuCbAebM3dZ6EUVnaJICHWkJvY7Bk9JwGL6Z8RhF7lunVAGqIMHH9GklqSCyNiY
 LK+05hNXHv/OOIAkEO+ZmDrWSagogggGXEdRFom9s87xmu9GVse7Fzfq9pZ5nQre
 gickgBeC+gN8das1wvhlTp22F8XJslC0IRJhvbwLMQUd16hrH1YUIdvsqry/Qxds
 04GgzLTVA/Z5VVEVm9MXcKWGwcsnUBu9EChsdEKZwNgBz9UF2gs39My8Co6AZ7U/
 Ajcpksl22RXaR7OB65vRPIk23mh/NchGSzVGFbppzCwj2SkO9ONSFrDj3mAzfbhR
 9NHi32Xm0+LdN444WCo1NzahKLAX5bYCv2ZSDs5JEBDQzmW2FWKO2ZaVJ84jpG6O
 O4XppI/X8cP+dxTs8xH91qh9GGmq9Aa41iuekZh/jG/8fLFT45rhlzLJfwh2B9rI
 djcaFFLFt+in5R6kgugM9dbCNALneXgGDnzlmqy5RwOrrCTwhyGn6DMwDqRz7EHn
 gsbiiv6eSsrgX4mLHP2n
 =Wj06
 -----END PGP SIGNATURE-----

Merge tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

Pull virtio updates from Rusty Russell:
 "Some virtio internal cleanups, a new virtio device "virtio input", and
  a change to allow the legacy virtio balloon.

  Most excitingly, some lguest work! No seriously, I got some cleanup
  patches"

* tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux:
  virtio: drop virtio_device_is_legacy_only
  virtio_pci: support non-legacy balloon devices
  virtio_mmio: support non-legacy balloon devices
  virtio_ccw: support non-legacy balloon devices
  virtio: balloon might not be a legacy device
  virtio_balloon: transitional interface
  virtio_ring: Update weak barriers to use dma_wmb/rmb
  virtio_pci_modern: switch to type-safe io accessors
  virtio_pci_modern: type-safe io accessors
  lguest: handle traps on the "interrupt suppressed" iret instruction.
  virtio: drop a useless config read
  virtio_config: reorder functions
  Add virtio-input driver.
  lguest: suppress interrupts for single insn, not range.
  lguest: simplify lguest_iret
  lguest: rename i386_head.S in the comments
  lguest: explicitly set miscdevice's private_data NULL
  lguest: fix pending interrupt test.
2015-04-22 10:55:06 -07:00
Linus Torvalds
f3ca10dde4 Revert "mm: avoid tail page refcounting on non-THP compound pages"
This reverts commit 8d63d99a5d.

It causes in VM mapping refcount errors:

  page:ffffea0010a15040 count:0 mapcount:1 mapping:          (null) index:0x0
  flags: 0x8000000000008014(referenced|dirty|tail)
  page dumped because: VM_BUG_ON_PAGE(page_mapcount(page) != 0)
  ------------[ cut here ]------------
  kernel BUG at mm/swap.c:134!

as reported by Borislav Petkov

Reported-and-tested-by: Borislav Petkov <bp@alien8.de>
Cc: Kirill A. Shutemov <kirill@shutemov.name>
Cc: Hugh Dickins <hughd@google.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mm@kvack.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-04-22 09:44:36 -07:00
Linus Torvalds
5e6c94a999 MMC core:
- Fix error code propagation in mmc_pwrseq_simple_alloc()
 - Revert "mmc: core: Convert mmc_driver to device_driver"
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJVN1ScAAoJEP4mhCVzWIwpqlMQAJ3ieLwShDPcX7FRBnLwnIEG
 Iw5DnxKAhyVHy9k6nTmMBDdhAUrqxgmU6FN4uUbQtG+diInwhSaXue9oR8wyOs3Q
 kG/i9cKLPDd5TG16abNFVG7pMFqBEeJMMdx8oLSjVbs7jld9txVObHkhlSiaCW1w
 SSE3F6mFkgYHtt+2+KRVBKOqSNpqM1xXa86P3QPo8rA7XAVDWkykgqIV2UIxxTP0
 uE9oHU0G+wAHEQH4muJAtusyanFxCl1pcEyMOb/6R4YpuGzgkT4gwcci4OoEn6b+
 9JW08FcUZ+FPQw28UjrJjfevmCHWjko8mcnWiSI8a5SNm6JaYZcUv10BASb/ojlM
 qbv9bmkHY80p4Va19h8GYOeXlHVPF8bXst3LmPIi3o1N5b+1foFJH5iQuf8tmV/6
 dYKSBLHa6HpdT6lkTPMQ/lUgDnB+uQE4URVebWVyfGiPC3cIWqUSM1HgSS8RhnJi
 PTilVoHCmhM3lh2tLyI9DB9uP9pWLAv5B4pTfIJiAQXjU6aLWAwax2Bw9jsGlmRR
 Wl6Iq1urVxAEMkl6/HruorVB28HBy70eX3z0igZoYyl20zzow9gSineYR0yBbCIl
 EfPcII6ewvPOGP6tMSvUrc1JSH6iE47aB7qQRtt5Vjp2mx6PRWdw1Tl/8/7vEVC2
 AeNtvVfSWk7o4WXcANZd
 =SJUv
 -----END PGP SIGNATURE-----

Merge tag 'mmc-4.1-rc1' of git://git.linaro.org/people/ulf.hansson/mmc

Pull MMC fixes from Ulf Hansson:
 "Here is two mmc core fixes for v.4.1 rc1:

   - fix error code propagation in mmc_pwrseq_simple_alloc()

   - revert 'mmc: core: Convert mmc_driver to device_driver'"

* tag 'mmc-4.1-rc1' of git://git.linaro.org/people/ulf.hansson/mmc:
  Revert "mmc: core: Convert mmc_driver to device_driver"
  mmc: pwrseq: Fix error code propagation in mmc_pwrseq_simple_alloc()
2015-04-22 09:29:08 -07:00
Linus Torvalds
8b3c8ba3d8 ARM: SoC late changes for v4.1
We were expecting to sit on this branch through most of the merge window since
 the contents was merged into our tree late, but we ended up sitting on all of
 our contents so it can go in with the rest.
 
 The contents here is:
 
 - A large branch of cleanups of the CM/PRM blocks on OMAP.
 - A couple of patches plumbing up CM/PRM on OMAP5 and DRA7.
 - A branch with DT updates for Freescale i.MX. including some shuffling from
   .dts to .dtsi (include) files that causes a little churn.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJVNy2KAAoJEIwa5zzehBx3mE4P/A+Wk2ElKl0FH6Kz4Wmt5MOY
 GPbIyd6jXTN/zbyAQxdPEQM7VvBh6GfgGTmNmcmfv2kacGJveAc7+UV0GSfW0XEO
 haOIwSRvfCIW1d2pyphrFlRqzQsDDzJkVuiRo1DkFwICyKEabXNqGu1zjNaLmN3j
 zw1DiAhe9ymywxayT5GBMevKU2a16Jgbzie6UfKKI5YO8Nqug13YI1as7n9SKrU4
 wdi5b7kecgcfVlmYUrN9iqKg3oKTqRNSZDk/WsGvO/L5Mks0Xoc9v/K6rifNUMdd
 CoigEznE1xgDvwPbAeXn4JiF/+JLVnDTZorsINQFIIAzHa2cZM1fMjT3x56IT0Y0
 iIU3uWh8B/L2/qTPsqEBDFd/lBX/E3cND7lCIWCU0vwGWRzAh/Q+vRwdFfLoMOXh
 npcw0hGS4KEWJ0sEX0xU9EvBUa5fb/CXT2xWBPVMV1Wb1QZLcquBRxFFNgh+GK2X
 nmoZFiqfJDQWrMoNySo+MGyBzIYLtwxkRF0rsUvJ47cW2/+KXSHflTgllvEpQ/38
 Ew3QmzCPlFuP7G1xiim9zSGvKIYhWV1fRUix1+FIE+on2d0TmdhqISHzCVU6ePxB
 MZC8GwUww57i0hXXgirgrlN6moKaUC1DN7AwNrHQsJIi8aFXuFWbZAufRrV36Kwg
 zsADWvSeOSWwea04MtkL
 =ssbK
 -----END PGP SIGNATURE-----

Merge tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC late changes from Olof Johansson:
 "We were expecting to sit on this branch through most of the merge
  window since the contents was merged into our tree late, but we ended
  up sitting on all of our contents so it can go in with the rest.

  The contents here is:

   - a large branch of cleanups of the CM/PRM blocks on OMAP.

   - a couple of patches plumbing up CM/PRM on OMAP5 and DRA7.

   - a branch with DT updates for Freescale i.MX.  including some
     shuffling from .dts to .dtsi (include) files that causes a little
     churn"

* tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (78 commits)
  ARM: OMAP2+: Fix booting with configs that don't have MFD_SYSCON
  ARM: OMAP4+: control: add support for initializing control module via DT
  ARM: dts: dra7: add minimal l4 bus layout with control module support
  ARM: dts: omap5: add minimal l4 bus layout with control module support
  ARM: OMAP4+: control: remove support for legacy pad read/write
  ARM: OMAP4: display: convert display to use syscon for dsi muxing
  ARM: dts: omap4: add minimal l4 bus layout with control module support
  ARM: dts: am4372: add minimal l4 bus layout with control module support
  ARM: dts: am43xx-epos-evm: fix pinmux node layout
  ARM: dts: am33xx: add minimal l4 bus layout with control module support
  ARM: dts: omap3: add minimal l4 bus layout with control module support
  ARM: dts: omap24xx: add minimal l4 bus layout with control module support
  ARM: OMAP2+: control: add syscon support for register accesses
  ARM: OMAP2+: id: cache omap_type value
  ARM: OMAP2+: control: remove API for getting control module base address
  ARM: OMAP2+: clock: add low-level support for regmap
  ARM: OMAP4+: PRM: get rid of cpu_is_omap44xx calls from interrupt init
  ARM: OMAP4+: PRM: setup prm_features from the PRM init time flags
  ARM: OMAP2+: CM: move SoC specific init calls within a generic API
  ARM: OMAP4+: PRM: determine prm_device_inst based on DT compatibility
  ...
2015-04-22 09:24:55 -07:00
Linus Torvalds
e5ac320de1 ARM: SoC multiplatform code changes for v4.1
The changes here belong to two main platforms:
 
 - Atmel At91 is flipping the bit and going multiplatform. This includes some
   cleanups and removal of code, and the final flip of config dependencies
 
 - Shmobile has several platforms that are going multiplatform, but this
   branch also contains a bunch of cleanups that they weren't able to keep
   separate in a good way. THere's also a removal of one of their SoCs and the
   corresponding boards (sh7372 and mackerel).
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJVNzfJAAoJEIwa5zzehBx3iRcP/1v9Rw2yk4NpUDaz5EUwhwN6
 y5l29gW8jJmVuHWqLUqsgh61dsj5AEEAL7fEEbR8e8848s+RxsehjsGPIxFOkR74
 KaKSRlrUgxKcsFN97Jo/WqT3seC83hg6zWQapwNypX33gBtrRLPhM9FEb05asYA8
 6x7N29kFeH9M3A6lrabXGWz5tPRZSthwuBSmomHOfgqa5zbgkoaK59j867Yac0q+
 Pemh0eJZHC3Pyrmh7ZcVaCaSvr1QO6ructmLopmHAXfls2Fi21wq3IN3641aiitC
 G7hhb1/c961MpE3p+0dQyrXs645qIgYv/fDxp72T8YwA7FhjMmIscX/WiITXMlvC
 Mg/fDJXqgRkTPWjvVM6xF8TKCSdvqfmErWtHt2dtgvbFWL0ffSeoYF35AF5BODVG
 jp8RR6vQ/CHKFao5iJmTpm0ccjnzdS82FEb0PrhG0vY+u6uCsKMim5tn8wUBuBkM
 QU2FipNt6STC5ZcCSb+p7r5ihod9rG+BlNL/eXJ+pBHuVnjSgltEaZBP9qIiFjZl
 MLRjm7JaEY3LpAR/TVurtSrUnh0zC0RRSzptK4RekmFIwyL+mqq/I1yrksdnVjgf
 upj1dZwFRsVtD5PcaU3LyTYCOLSI8L9+b6vVvfFH0Sq4V7TkaBkI/kxnhI2WfkBc
 CJ+3vptpyphw6zHAngAN
 =Vq4N
 -----END PGP SIGNATURE-----

Merge tag 'armsoc-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC multiplatform code changes from Olof Johansson:
 "The changes here belong to two main platforms:

   - Atmel At91 is flipping the bit and going multiplatform.  This
     includes some cleanups and removal of code, and the final flip of
     config dependencies

   - Shmobile has several platforms that are going multiplatform, but
     this branch also contains a bunch of cleanups that they weren't
     able to keep separate in a good way.  THere's also a removal of one
     of their SoCs and the corresponding boards (sh7372 and mackerel)"

* tag 'armsoc-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (67 commits)
  ARM: at91/pm: move AT91_MEMCTRL_* to pm.h
  ARM: at91/pm: move the standby functions to pm.c
  ARM: at91: fix pm_suspend.S compilation when ARMv6 is selected
  ARM: at91: add a Kconfig dependency on multi-platform
  ARM: at91: drop AT91_TIMER_HZ
  ARM: at91: remove hardware.h
  ARM: at91: remove SoC headers
  ARM: at91: remove useless mach/cpu.h
  ARM: at91: remove unused headers
  ARM: at91: switch at91_dt_defconfig to multiplatform
  ARM: at91: switch to multiplatform
  ARM: shmobile: r8a7778: enable multiplatform target
  ARM: shmobile: bockw: add sound to DT
  ARM: shmobile: r8a7778: add sound to DT
  ARM: shmobile: bockw: add devices hooked up to i2c0 to DT
  DT: i2c: add trivial binding for OKI ML86V7667 video decoder
  ARM: shmobile: r8a7778: common clock framework CPG driver
  ARM: shmobile: bockw dts: set extal clock frequency
  ARM: shmobile: bockw dts: Move Ethernet node to BSC
  ARM: shmobile: r8a73a4: Remove legacy code
  ...
2015-04-22 09:20:15 -07:00
Linus Torvalds
7d2b6ef19c ARM: SoC driver updates for v4.1
Driver updates for v4.1. Some of these are for drivers/soc, where we find more
 and more SoC-specific drivers these days. Some are for other driver subsystems
 where we have received acks from the appropriate maintainers.
 
 The larger parts of this branch are:
 
 - MediaTek support for their PMIC wrapper interface, a high-level interface
   for talking to the system PMIC over a dedicated I2C interface.
 - Qualcomm SCM driver has been moved to drivers/firmware. It's used for CPU
   up/down and needs to be in a shared location for arm/arm64 common code.
 - Cleanup of ARM-CCI PMU code.
 - Anoter set of cleanusp to the OMAP GPMC code.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJVNzKYAAoJEIwa5zzehBx3UJ8P/37OA1Qc5vR/Kyc8WlhPlNFV
 MRE7ajM+FMd/Islt4nVNKATK2o3peCTPrqcniDfdPmN2dM1l4LvdeIvkIhKpB09h
 ovmYTZLI/AIbbkttWybGO4lVpFeATxX5N91XXBHvbqkMh6N6ppiYWZUYeJs9EhAw
 2YKykfDCTjKykS+m4YThXw9SCF/6mkCvaBL2VAuKnoV0ygjQD109Fce/irKaAoyw
 L2w4PXOimUk8RshTx3afKCgTotMS0e9JWjKjvDO5M2KAD8DHm7PDRMmRVzA2sSFG
 E2BCfh2DTjzJjdfRYsTd1bYnWzvakX1CzLjiFv+Sb0ctanoZdiDtJIDpX+vSXZ+D
 W7i0yhEWIrr2qaZOyXR8znw8BhzdVZhmT+O76N47HvzMb5JUkaZBhEUBfUyeDbk+
 YhEwz1G+YxT+fg7bBrxa3vLzOJ2pUwVJPITNuPKr6eZJmaBqgx2M7xXs3KyIJX1Y
 AV9eUs2uNCyonawO6xXRhlUKREKL1TftqNXfLj7MYg6AaoVqK0qNRfuCdhMFhMdN
 88QCl/qpPtIDL6ZnxlOejs30+DCH1QPx6+GhxkUlVlF1j/2ZM0cK2cj3tggDbNvN
 uSy/g5pYDp62Az8UCoNXmKdnb4UONigb7k49naZbW/9CGRp1rrmUdzPUAm0tHMBT
 HsH7ms+nHAZHrAlNvvtP
 =/sWo
 -----END PGP SIGNATURE-----

Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Olof Johansson:
 "Driver updates for v4.1.  Some of these are for drivers/soc, where we
  find more and more SoC-specific drivers these days.  Some are for
  other driver subsystems where we have received acks from the
  appropriate maintainers.

  The larger parts of this branch are:

   - MediaTek support for their PMIC wrapper interface, a high-level
     interface for talking to the system PMIC over a dedicated I2C
     interface.

   - Qualcomm SCM driver has been moved to drivers/firmware.  It's used
     for CPU up/down and needs to be in a shared location for arm/arm64
     common code.

   - cleanup of ARM-CCI PMU code.

   - another set of cleanusp to the OMAP GPMC code"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (43 commits)
  soc/mediatek: Remove unused variables
  clocksource: atmel-st: select MFD_SYSCON
  soc: mediatek: Add PMIC wrapper for MT8135 and MT8173 SoCs
  arm-cci: Fix CCI PMU event validation
  arm-cci: Split the code for PMU vs driver support
  arm-cci: Get rid of secure transactions for PMU driver
  arm-cci: Abstract the CCI400 PMU specific definitions
  arm-cci: Rearrange code for splitting PMU vs driver code
  drivers: cci: reject groups spanning multiple HW PMUs
  ARM: at91: remove useless include
  clocksource: atmel-st: remove mach/hardware dependency
  clocksource: atmel-st: use syscon/regmap
  ARM: at91: time: move the system timer driver to drivers/clocksource
  ARM: at91: properly initialize timer
  ARM: at91: at91rm9200: remove deprecated arm_pm_restart
  watchdog: at91rm9200: implement restart handler
  watchdog: at91rm9200: use the system timer syscon
  mfd: syscon: Add atmel system timer registers definition
  ARM: at91/dt: declare atmel,at91rm9200-st as a syscon
  soc: qcom: gsbi: Add support for ADM CRCI muxing
  ...
2015-04-22 09:18:17 -07:00
Linus Torvalds
5c73cc4b6c ARM: DT updates for v4.1
As always, this tends to be one of our bigger branches. There are lots of
 updates this release, but not that many jumps out as something that needs
 more detailed coverage. Some of the highlights are:
 
 - DTs for the new Annapurna Labs Alpine platform
 - More graphics DT pieces falling into place on Exynos, bridges, clocks.
 - Plenty of DT updates for Qualcomm platforms for various IP blocks
 - Some churn on Tegra due to switch-over to tool-generated pinctrl data
 - Misc fixes and updates for Atmel at91 platforms
 - Various DT updates to add IP block support on Broadcom's Cygnus platforms
 - More updates for Renesas platforms as DT support is added for various IP
   blocks (IPMMU, display, audio, etc).
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJVNzKFAAoJEIwa5zzehBx3JtEP/1g89CW7iZHAUyIiC+jtgqck
 ASoplr13DLD0HWjjWITX3zm7J/iY57YjEv14tHH/xmrh5YCCZ+mRLqiD/Plnv0Zv
 JdJRRJv/NMnMlu/tA1aBO326JOt2Vw+3YngmYayDpoRzVifx2YTJLbu2difa+6rM
 vN6FpOE6U5jkvM16+gqxKxyx0tGIQz9cTn+9q2V1fDS++vZ2VvqfB5pTNul3BKAF
 OVCNFJ/EUE9EPMPbmgDjYmNE/POj64kF32n7NBEQz2Z+nwDNxDAecfF356hV7o5g
 JsFLNK+4c2QQqBL775xzCf5kK+n/V2cFEpDica+hU70AdWsjdAlUFrbOsWGUJLRi
 4Blrv8GRxEKeOCs8AFKYCM+z3zf2ais7JMteD2VW26ywCwpUt+QEZTUVHRHU3NYQ
 BMI7uyTGIH2GyLyS+Av3vikza8IbDIwlYuuDpXhCJSXXgKSnbzCrpjkhyGLccBJR
 k3qgUwPJVw9hP1qaaNgvb7p9oNhTP2yLl3fQ68WqI7QWIupW0/s12INhzFFgt6zU
 Nzcx010ku9yMeMMGtfiNgA3cMln+Ysfs1UIUOMQ36zP1PCtHJkZgwtZzTsBE4A04
 KqmiLL/+7qsconEhEanmDzTpeXiNzERnOKSSqVN7Fwp89GEFJLrWpHSXI+8SBTHC
 fB54LRTNYdlcoN0QshcT
 =wqhB
 -----END PGP SIGNATURE-----

Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM DT updates from Olof Johansson:
 "As always, this tends to be one of our bigger branches.  There are
  lots of updates this release, but not that many jumps out as something
  that needs more detailed coverage.  Some of the highlights are:

   - DTs for the new Annapurna Labs Alpine platform

   - more graphics DT pieces falling into place on Exynos, bridges,
     clocks.

   - plenty of DT updates for Qualcomm platforms for various IP blocks

   - some churn on Tegra due to switch-over to tool-generated pinctrl
     data

   - misc fixes and updates for Atmel at91 platforms

   - various DT updates to add IP block support on Broadcom's Cygnus
     platforms

   - more updates for Renesas platforms as DT support is added for
     various IP blocks (IPMMU, display, audio, etc)"

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (231 commits)
  ARM: dts: alpine: add internal pci
  Revert "ARM: dts: mt8135: Add pinctrl/GPIO/EINT node for mt8135."
  ARM: mvebu: use 0xf1000000 as internal registers on Armada 370 DB
  ARM: dts: qcom: Add idle state device nodes for 8064
  ARM: dts: qcom: Add idle states device nodes for 8084
  ARM: dts: qcom: Add idle states device nodes for 8974/8074
  ARM: dts: qcom: Update power-controller device node for 8064 Krait CPUs
  ARM: dts: qcom: Add power-controller device node for 8084 Krait CPUs
  ARM: dts: qcom: Add power-controller device node for 8074 Krait CPUs
  devicetree: bindings: Document qcom,idle-states
  devicetree: bindings: Update qcom,saw2 node bindings
  dt-bindings: Add #defines for MSM8916 clocks and resets
  arm: dts: qcom: Add LPASS Audio HW to IPQ8064 device tree
  arm: dts: qcom: Add APQ8084 chipset SPMI PMIC's nodes
  arm: dts: qcom: Add 8x74 chipset SPMI PMIC's nodes
  arm: dts: qcom: Add SPMI PMIC Arbiter nodes for APQ8084 and MSM8974
  arm: dts: qcom: Add LCC nodes
  arm: dts: qcom: Add TCSR support for MSM8960
  arm: dts: qcom: Add TCSR support for MSM8660
  arm: dts: qcom: Add TCSR support for IPQ8064
  ...
2015-04-22 09:09:46 -07:00
Linus Torvalds
e6c81cce56 ARM: SoC platform updates for v4.1
Our SoC branch usually contains expanded support for new SoCs and other core
 platform code. In this case, that includes:
 
 - Support for the new Annapurna Labs "Alpine" platform
 - A rework greatly simplifying adding new platform support to the MCPM
   subsystem (Multi-cluster power management)
 - Cpuidle and PM improvements for Exynos3250
 - Misc updates for Renesas, OMAP, Meson, i.MX. Some of these could have
   gone in other branches but ended up here for various reasons.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJVNzfWAAoJEIwa5zzehBx3idcP/Rt042tqb0bian/4M1Ud1aQ7
 AMRd4oU5MfWAlzaGPeMBS+b1eo/eENj6wyWsvBQIByZN76ImlUXtxsx0U0frLrVg
 mWVo9zOLRuoE6yyq329zZgg1IM1RtRIruS6zucKsHgKtq0DcjhYGGUH0ZVZk/rKI
 RLtRK8U6Jr0lnpu1TDE5mii7GCCZlEl5dG+J3w5ewC9y7RLRlM09xjK/Zsj0QOqY
 JvMOIaHuHMT6l7BQ6QajtVxTeGECOJ3YDqC6mDHCVD7f3v88+7H5C20xNGPK921w
 tLfB5qOojnj+kKZRPhi8EGnRzKwrBq6/mE5CvvigTCGlAEUOzy7PFSY9oNE80QeL
 6mUdPTuZuqz7ZEIF0kj8I0AkB6k8B+aYfqA9mqM5yGpa11HvZZGfP7CwI4izoe6+
 sT++0OeDPwbsMyRxZjqNQLs4QYaKGYMP4NCgA17zz5ToRCQZy7e5hd2GYzaRouyi
 kTpR9FbxwDcBIwTcA3F7oJ90BEMJ0tvGz/Al11UQpzPePhTwQt2yB5bRZyK/RYIU
 x8k8RHArG3fmS89D4aOViL3sy/zoUBedx4UfAo6jVbrvoZGALQL23KHdqBqDiPmP
 sMRj/sSr+0h9nJCVNM6I/OUD4/IrpFGaeX9V7rpEsHVe7j83eV7Q2wNRPyVTgxdn
 jS8TS0FNAXIv8FO9EoNH
 =tcGs
 -----END PGP SIGNATURE-----

Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Olof Johansson:
 "Our SoC branch usually contains expanded support for new SoCs and
  other core platform code.  In this case, that includes:

   - support for the new Annapurna Labs "Alpine" platform

   - a rework greatly simplifying adding new platform support to the
     MCPM subsystem (Multi-cluster power management)

   - cpuidle and PM improvements for Exynos3250

   - misc updates for Renesas, OMAP, Meson, i.MX.  Some of these could
     have gone in other branches but ended up here for various reasons"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (53 commits)
  ARM: alpine: add support for generic pci
  ARM: Exynos: migrate DCSCB to the new MCPM backend abstraction
  ARM: vexpress: migrate DCSCB to the new MCPM backend abstraction
  ARM: vexpress: DCSCB: tighten CPU validity assertion
  ARM: vexpress: migrate TC2 to the new MCPM backend abstraction
  ARM: MCPM: move the algorithmic complexity to the core code
  ARM: EXYNOS: allow cpuidle driver usage on Exynos3250 SoC
  ARM: EXYNOS: add AFTR mode support for Exynos3250
  ARM: EXYNOS: add code for setting/clearing boot flag
  ARM: EXYNOS: fix CPU1 hotplug on Exynos3250
  ARM: S3C64XX: Use fixed IRQ bases to avoid conflicts on Cragganmore
  ARM: cygnus: fix const declaration bcm_cygnus_dt_compat
  ARM: DRA7: hwmod: Fix the hwmod class for GPTimer4
  ARM: DRA7: hwmod: Add data for GPTimers 13 through 16
  ARM: EXYNOS: Remove left over 'extra_save'
  ARM: EXYNOS: Constify exynos_pm_data array
  ARM: EXYNOS: use static in suspend.c
  ARM: EXYNOS: Use platform device name as power domain name
  ARM: EXYNOS: add support for async-bridge clocks for pm_domains
  ARM: omap-device: add missed callback for suspend-to-disk
  ...
2015-04-22 09:08:39 -07:00
Linus Torvalds
d0440c59f5 ARM: SoC cleanups for v4.1
We've got a fairly large cleanup branch this time. The bulk of this is removal
 of non-DT platforms of several flavors:
 
 - Atmel at91 platforms go full-DT, with removal of remaining board-file based
   support
 - OMAP removes legacy board files for three more platforms
 - Removal of non-DT mach-msm, newer Qualcomm platforms now live in mach-qcom
 - Freescale i.MX25 also removes non-DT platform support
 
 Most of the rest of the changes here are fallout from the above, i.e. for
 example removal of drivers that now lack platforms, etc.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJVNzI3AAoJEIwa5zzehBx3ePwQAJKb4Mf72/4iiKb4dbVcooQN
 EiZ84fwWiWD6Mww/3A76xVnz/b7JWmB3vwW0b4fcbvzubmOjnROBmZgCWeNy4ZTv
 dOZc3/9jK7OrlwvpFBeZykQwHcbz+550+m3WxmLft1oqH/7BA1k5aunwYtFB96ii
 5Owi4Cy9OmxEyALQAvzktFaJdI7J66LNb+i30r5zIZHlkVooeF3UyadndiswUP2o
 EBzCE8UPqRi5kV6FuwVyf4MZaV28FWoglTqdx9OxogcTnKNFT6RlHQ39q/iPu348
 Wkh4kOryVy7Rlab1K4wQRpBoOwkonKDV73u2H2ifRFj7V9ZAdjibK8pgKn3kjkba
 bJkwHIqlqtqqqjj2Hh93wl+8hKSypoLXO9tagPWYBiLtFXCH/+EVsihWYpAc/A5E
 pUS6hJrJyXKJouwwsXu6459zP0ieqhvpbQG72xs9PRimAfAdSTulSTzdI/dMh42Q
 pwYkmvh+ReY3Ll4MeCzu7+eCIY0qAKsor48W1ImuziwQhg2lZj16qWtA4YdPk3+O
 N8ckyaaFg663PAfsZgBx1qTgxw5v0ec2k68/iEVGS5mUJCgcWxFvR95chTDIxQXq
 ZmJ+SuMFyLB/2zVSiGU96L1PQTcUkxJJ8LVB3qNp6KlYT7qUSsgAU+qYveFlUh+p
 X8MVsSVh8n1MTNepsLij
 =BV8A
 -----END PGP SIGNATURE-----

Merge tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups from Olof Johansson:
 "We've got a fairly large cleanup branch this time.  The bulk of this
  is removal of non-DT platforms of several flavors:

   - Atmel at91 platforms go full-DT, with removal of remaining
     board-file based support

   - OMAP removes legacy board files for three more platforms

   - removal of non-DT mach-msm, newer Qualcomm platforms now live in
     mach-qcom

   - Freescale i.MX25 also removes non-DT platform support"

Most of the rest of the changes here are fallout from the above, i.e. for
example removal of drivers that now lack platforms, etc.

* tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (58 commits)
  mmc: Remove msm_sdcc driver
  gpio: Remove gpio-msm-v1 driver
  ARM: Remove mach-msm and associated ARM architecture code
  ARM: shmobile: cpuidle: Remove the pointless default driver
  ARM: davinci: dm646x: Add interrupt resource for McASPs
  ARM: davinci: irqs: Correct McASP1 TX interrupt definition for DM646x
  ARM: davinci: dm646x: Clean up the McASP DMA resources
  ARM: davinci: devices-da8xx: Add support for McASP2 on da830
  ARM: davinci: devices-da8xx: Clean up and correct the McASP device creation
  ARM: davinci: devices-da8xx: Add interrupt resource to McASP structs
  ARM: davinci: devices-da8xx: Add resource name for the McASP DMA request
  ARM: OMAP2+: Remove legacy support for omap3 TouchBook
  ARM: OMAP3: Remove legacy support for devkit8000
  ARM: OMAP3: Remove legacy support for EMA-Tech Stalker board
  ARM: shmobile: Consolidate the pm code for R-Car Gen2
  ARM: shmobile: r8a7791: Correct SYSCIER value
  ARM: shmobile: r8a7790: Correct SYSCIER value
  ARM: at91: remove old setup
  ARM: at91: sama5d4: remove useless map_io
  ARM: at91: sama5 use SoC detection infrastructure
  ...
2015-04-22 09:04:39 -07:00
Ilya Dryomov
7c1c4747f2 libceph: announce support for straw2 buckets
Sync up feature bits and enable CEPH_FEATURE_CRUSH_V4.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2015-04-22 18:33:48 +03:00
Ilya Dryomov
958a27658d crush: straw2 bucket type with an efficient 64-bit crush_ln()
This is an improved straw bucket that correctly avoids any data movement
between items A and B when neither A nor B's weights are changed.  Said
differently, if we adjust the weight of item C (including adding it anew
or removing it completely), we will only see inputs move to or from C,
never between other items in the bucket.

Notably, there is not intermediate scaling factor that needs to be
calculated.  The mapping function is a simple function of the item weights.

The below commits were squashed together into this one (mostly to avoid
adding and then yanking a ~6000 lines worth of crush_ln_table):

- crush: add a straw2 bucket type
- crush: add crush_ln to calculate nature log efficently
- crush: improve straw2 adjustment slightly
- crush: change crush_ln to provide 32 more digits
- crush: fix crush_get_bucket_item_weight and bucket destroy for straw2
- crush/mapper: fix divide-by-0 in straw2
  (with div64_s64() for draw = ln / w and INT64_MIN -> S64_MIN - need
   to create a proper compat.h in ceph.git)

Reflects ceph.git commits 242293c908e923d474910f2b8203fa3b41eb5a53,
                          32a1ead92efcd351822d22a5fc37d159c65c1338,
                          6289912418c4a3597a11778bcf29ed5415117ad9,
                          35fcb04e2945717cf5cfe150b9fa89cb3d2303a1,
                          6445d9ee7290938de1e4ee9563912a6ab6d8ee5f,
                          b5921d55d16796e12d66ad2c4add7305f9ce2353.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2015-04-22 18:33:43 +03:00
Yan, Zheng
0ea611a3bc ceph: rename snapshot support
Signed-off-by: Yan, Zheng <zyan@redhat.com>
2015-04-22 18:33:41 +03:00
Linus Torvalds
8aaa51b63c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
 "Just a few fixes trickling in at this point.

  1) If we see an attached socket on an skb in the ipv4 forwarding path,
     bail.  This can happen due to races with FIB rule addition, and
     deletion, and we should just drop such frames.  From Sebastian
     Pöhn.

  2) pppoe receive should only accept packets destined for this hosts's
     MAC address.  From Joakim Tjernlund.

  3) Handle checksum unwrapping properly in ppp receive properly when
     it's encapsulated in UDP in some way, fix from Tom Herbert.

  4) Fix some bugs in mv88e6xxx DSA driver resulting from the conversion
     from register offset constants to mnenomic macros.  From Vivien
     Didelot.

  5) Fix handling of HCA max message size in mlx4 adapters, from Eran
     Ben ELisha"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  net/mlx4_core: Fix reading HCA max message size in mlx4_QUERY_DEV_CAP
  tcp: add memory barriers to write space paths
  altera tse: Error-Bit on tx-avalon-stream always set.
  net: dsa: mv88e6xxx: use PORT_DEFAULT_VLAN
  net: dsa: mv88e6xxx: fix setup of port control 1
  ppp: call skb_checksum_complete_unset in ppp_receive_frame
  net: add skb_checksum_complete_unset
  pppoe: Lacks DST MAC address check
  ip_forward: Drop frames with attached skb->sk
2015-04-21 22:37:27 -07:00
Markus Stockhausen
584acdd49c md/raid5: activate raid6 rmw feature
Glue it altogehter. The raid6 rmw path should work the same as the
already existing raid5 logic. So emulate the prexor handling/flags
and split functions as needed.

1) Enable xor_syndrome() in the async layer.

2) Split ops_run_prexor() into RAID4/5 and RAID6 logic. Xor the syndrome
at the start of a rmw run as we did it before for the single parity.

3) Take care of rmw run in ops_run_reconstruct6(). Again process only
the changed pages to get syndrome back into sync.

4) Enhance set_syndrome_sources() to fill NULL pages if we are in a rmw
run. The lower layers will calculate start & end pages from that and
call the xor_syndrome() correspondingly.

5) Adapt the several places where we ignored Q handling up to now.

Performance numbers for a single E5630 system with a mix of 10 7200k
desktop/server disks. 300 seconds random write with 8 threads onto a
3,2TB (10*400GB) RAID6 64K chunk without spare (group_thread_cnt=4)

bsize   rmw_level=1   rmw_level=0   rmw_level=1   rmw_level=0
        skip_copy=1   skip_copy=1   skip_copy=0   skip_copy=0
   4K      115 KB/s      141 KB/s      165 KB/s      140 KB/s
   8K      225 KB/s      275 KB/s      324 KB/s      274 KB/s
  16K      434 KB/s      536 KB/s      640 KB/s      534 KB/s
  32K      751 KB/s    1,051 KB/s    1,234 KB/s    1,045 KB/s
  64K    1,339 KB/s    1,958 KB/s    2,282 KB/s    1,962 KB/s
 128K    2,673 KB/s    3,862 KB/s    4,113 KB/s    3,898 KB/s
 256K    7,685 KB/s    7,539 KB/s    7,557 KB/s    7,638 KB/s
 512K   19,556 KB/s   19,558 KB/s   19,652 KB/s   19,688 Kb/s

Signed-off-by: Markus Stockhausen <stockhausen@collogia.de>
Signed-off-by: NeilBrown <neilb@suse.de>
2015-04-22 08:00:42 +10:00
Markus Stockhausen
fe5cbc6e06 md/raid6 algorithms: delta syndrome functions
v3: s-o-b comment, explanation of performance and descision for
the start/stop implementation

Implementing rmw functionality for RAID6 requires optimized syndrome
calculation. Up to now we can only generate a complete syndrome. The
target P/Q pages are always overwritten. With this patch we provide
a framework for inplace P/Q modification. In the first place simply
fill those functions with NULL values.

xor_syndrome() has two additional parameters: start & stop. These
will indicate the first and last page that are changing during a
rmw run. That makes it possible to avoid several unneccessary loops
and speed up calculation. The caller needs to implement the following
logic to make the functions work.

1) xor_syndrome(disks, start, stop, ...): "Remove" all data of source
blocks inside P/Q between (and including) start and end.

2) modify any block with start <= block <= stop

3) xor_syndrome(disks, start, stop, ...): "Reinsert" all data of
source blocks into P/Q between (and including) start and end.

Pages between start and stop that won't be changed should be filled
with a pointer to the kernel zero page. The reasons for not taking NULL
pages are:

1) Algorithms cross the whole source data line by line. Thus avoid
additional branches.

2) Having a NULL page avoids calculating the XOR P parity but still
need calulation steps for the Q parity. Depending on the algorithm
unrolling that might be only a difference of 2 instructions per loop.

The benchmark numbers of the gen_syndrome() functions are displayed in
the kernel log. Do the same for the xor_syndrome() functions. This
will help to analyze performance problems and give an rough estimate
how well the algorithm works. The choice of the fastest algorithm will
still depend on the gen_syndrome() performance.

With the start/stop page implementation the speed can vary a lot in real
life. E.g. a change of page 0 & page 15 on a stripe will be harder to
compute than the case where page 0 & page 1 are XOR candidates. To be not
to enthusiatic about the expected speeds we will run a worse case test
that simulates a change on the upper half of the stripe. So we do:

1) calculation of P/Q for the upper pages

2) continuation of Q for the lower (empty) pages

Signed-off-by: Markus Stockhausen <stockhausen@collogia.de>
Signed-off-by: NeilBrown <neilb@suse.de>
2015-04-22 08:00:41 +10:00
Andreas Gruenbacher
bff175238a uapi: Remove kernel internal declaration
The enum nfs4_acl_whotype is only used in nfs4d's internal nfs4 acl
representation. No longer expose it to user space.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2015-04-21 16:16:04 -04:00
Linus Torvalds
0c8027d50c media updates for v4.1-rc1
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJVNkdDAAoJEAhfPr2O5OEVxw4P/2dP5IfeEGt2knRgMBdxdDKA
 gjns4w7T+sclGeFQUtKDwu/k90+KRN4gZ61Pr2hOwdUCIr1mXXoDRpYaG0TeMpsP
 SpR5shMJX8wwtPEo2bKBcFv3ieHpo5LkIaMosytb0XnyL/QW16lKPK8clDN6NEf7
 0BLz3bC15+Y2TBNZw87SPD2CDRKXcqUmhb/uBKf7kxVQ2Z+jbTGRvABp1PAr37gw
 aR9WOKBW3khn0zDpbS8lDurC35yGpAp5zFntmUic9tXl9OMTRAgr20bm12NVivmg
 LKR24KriDN5wAGjh5ADYbMFIA21XSAVuLlhCWIUmpSPP9zhBHnvB5k3vvhXxAzqI
 SNqPcKQqtb6sQplLOa8f7WuYm2RS+tzaGAmAdpThogIYZprh0muQmuMjw0y5MeM8
 BTsldbuLJ06X2lm0z4zDOv0Xz5pk2cOvO3oDKkPAhb9OnLWW6ppdUE2kWFu8ndJf
 nYf+6NZm30etf742f+I6CM/qHSVy9476W0ITvGGdfO+cUgkNiY7QSz8cxbUgOe7u
 KGQsfc7mNrFbE9xwJl6XCyVcHFVIHhsA18SMXFPlVpUELl72W7wM8WrDXURuVmkm
 kEePMJr9W4pcAQdmqcqZuZ8SCCqjEoDxIKR9ZrBl8q58fylucbduFbrWw3gK/bim
 IGibNWOpPE0RA+Soz5vj
 =HpGw
 -----END PGP SIGNATURE-----

Merge tag 'media/v4.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - a new frontend driver for new ATSC devices: lgdt3306a

 - a new sensor driver: ov2659

 - a new platform driver: xilinx

 - the m88ts2022 tuner driver was merged at ts2020 driver

 - the media controller gained experimental support for DVB and hybrid
   devices

 - lots of random cleanups, fixes and improvements on media drivers

* tag 'media/v4.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (404 commits)
  [media] uvcvideo: add support for VIDIOC_QUERY_EXT_CTRL
  [media] uvcvideo: fix cropcap v4l2-compliance failure
  [media] media: omap3isp: remove unused clkdev
  [media] coda: Add tracing support
  [media] coda: drop dma_sync_single_for_device in coda_bitstream_queue
  [media] coda: fix fill bitstream errors in nonstreaming case
  [media] coda: call SEQ_END when the first queue is stopped
  [media] coda: fail to start streaming if userspace set invalid formats
  [media] coda: remove duplicate error messages for buffer allocations
  [media] coda: move parameter buffer in together with context buffer allocation
  [media] coda: allocate bitstream buffer from REQBUFS, size depends on the format
  [media] coda: allocate per-context buffers from REQBUFS
  [media] coda: use strlcpy instead of snprintf
  [media] coda: bitstream payload is unsigned
  [media] coda: fix double call to debugfs_remove
  [media] coda: check kasprintf return value in coda_open
  [media] coda: bitrate can only be set in kbps steps
  [media] v4l2-mem2mem: no need to initialize b in v4l2_m2m_next_buf and v4l2_m2m_buf_remove
  [media] s5p-mfc: set allow_zero_bytesused flag for vb2_queue_init
  [media] coda: set allow_zero_bytesused flag for vb2_queue_init
  ...
2015-04-21 10:01:27 -07:00
Linus Torvalds
1fc149933f Char/Misc driver patches for 4.1-rc1
Here's the big char/misc driver patchset for 4.1-rc1.
 
 Lots of different driver subsystem updates here, nothing major, full
 details are in the shortlog below.
 
 All of this has been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iEYEABECAAYFAlU2IMEACgkQMUfUDdst+yloDQCfbyIRL23WVAn9ckQse/y8gbjB
 OT4AoKTJbwndDP9Kb/lrj2tjd9QjNVrC
 =xhen
 -----END PGP SIGNATURE-----

Merge tag 'char-misc-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here's the big char/misc driver patchset for 4.1-rc1.

  Lots of different driver subsystem updates here, nothing major, full
  details are in the shortlog.

  All of this has been in linux-next for a while"

* tag 'char-misc-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (133 commits)
  mei: trace: remove unused TRACE_SYSTEM_STRING
  DTS: ARM: OMAP3-N900: Add lis3lv02d support
  Documentation: DT: lis302: update wakeup binding
  lis3lv02d: DT: add wakeup unit 2 and wakeup threshold
  lis3lv02d: DT: use s32 to support negative values
  Drivers: hv: hv_balloon: correctly handle num_pages>INT_MAX case
  Drivers: hv: hv_balloon: correctly handle val.freeram<num_pages case
  mei: replace check for connection instead of transitioning
  mei: use mei_cl_is_connected consistently
  mei: fix mei_poll operation
  hv_vmbus: Add gradually increased delay for retries in vmbus_post_msg()
  Drivers: hv: hv_balloon: survive ballooning request with num_pages=0
  Drivers: hv: hv_balloon: eliminate jumps in piecewiese linear floor function
  Drivers: hv: hv_balloon: do not online pages in offline blocks
  hv: remove the per-channel workqueue
  hv: don't schedule new works in vmbus_onoffer()/vmbus_onoffer_rescind()
  hv: run non-blocking message handlers in the dispatch tasklet
  coresight: moving to new "hwtracing" directory
  coresight-tmc: Adding a status interface to sysfs
  coresight: remove the unnecessary configuration coresight-default-sink
  ...
2015-04-21 09:42:58 -07:00
Linus Torvalds
41d5e08ea8 TTY/Serial patches for 4.1-rc1
Here's the big tty/serial driver update for 4.1-rc1.
 
 It was delayed for a bit due to some questions surrounding some of the
 console command line parsing changes that are in here.  There's still
 one tiny regression for people who were previously putting multiple
 console command lines and expecting them all to be ignored for some odd
 reason, but Peter is working on fixing that.  If not, I'll send a revert
 for the offending patch, but I have faith that Peter can address it.
 
 Other than the console work here, there's the usual serial driver
 updates and changes, and a buch of 8250 reworks to try to make that
 driver easier to maintain over time, and have it support more devices in
 the future.
 
 All of these have been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iEYEABECAAYFAlU2IcUACgkQMUfUDdst+ylFqACcC8LPhFEZg9aHn0hNUoqGK3rE
 5dUAnR4b8r/NYqjVoE9FJZgZfB/TqVi1
 =lyN/
 -----END PGP SIGNATURE-----

Merge tag 'tty-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial updates from Greg KH:
 "Here's the big tty/serial driver update for 4.1-rc1.

  It was delayed for a bit due to some questions surrounding some of the
  console command line parsing changes that are in here.  There's still
  one tiny regression for people who were previously putting multiple
  console command lines and expecting them all to be ignored for some
  odd reason, but Peter is working on fixing that.  If not, I'll send a
  revert for the offending patch, but I have faith that Peter can
  address it.

  Other than the console work here, there's the usual serial driver
  updates and changes, and a buch of 8250 reworks to try to make that
  driver easier to maintain over time, and have it support more devices
  in the future.

  All of these have been in linux-next for a while"

* tag 'tty-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (119 commits)
  n_gsm: Drop unneeded cast on netdev_priv
  sc16is7xx: expose RTS inversion in RS-485 mode
  serial: 8250_pci: port failed after wakeup from S3
  earlycon: 8250: Document kernel command line options
  earlycon: 8250: Fix command line regression
  earlycon: Fix __earlycon_table stride
  tty: clean up the tty time logic a bit
  serial: 8250_dw: only get the clock rate in one place
  serial: 8250_dw: remove useless ACPI ID check
  dmaengine: hsu: move memory allocation to GFP_NOWAIT
  dmaengine: hsu: remove redundant pieces of code
  serial: 8250_pci: add Intel Tangier support
  dmaengine: hsu: add Intel Tangier PCI ID
  serial: 8250_pci: replace switch-case by formula for Intel MID
  serial: 8250_pci: replace switch-case by formula
  tty: cpm_uart: replace CONFIG_8xx by CONFIG_CPM1
  serial: jsm: some off by one bugs
  serial: xuartps: Fix check in console_setup().
  serial: xuartps: Get rid of register access macros.
  serial: xuartps: Fix iobase use.
  ...
2015-04-21 09:33:10 -07:00
Linus Torvalds
e98bf5cedf The changes to the common clock framework for 4.0 are mostly new clock
drivers and updates to existing ones for feature enhancements and bug
 fixes. There is more churn than usual in the framework core due to the
 change to introduce per-user unique struct clk pointers in 4.0. This
 caused several regressions to surface, some of which were sent as fixes
 to 4.0. New generic clock drivers were added for GPIO- and PWM-based
 clock controllers. Additionally the common clk-divider code recieved
 several fixes to the way it rounds rates.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJVNcIIAAoJEKI6nJvDJaTU3a8QAM+fjhDMY5xpI6VIbxZaA2aR
 VUofw9/rdAtP1UdwtlSKBvCqpwwqt/U7zlMWU9v+UvTjYdHIf9SIDQoJnd+uEtwL
 roz/kNeB7WOVyxwbTJ2B5fjvPSN+mq8Rm8ANDcL8ZOGxxtt2Mip1IWMAlx2XUnwG
 tYZhB7EfKzLHZRblOdn2Q4U/4T+KXOFTSO+Gb9o2J0I2sJLI0NRXhcl9Fcoo8KVz
 G0ACWa0F1WKsbqzBATnhtYiKkuC3BeiS2eMuTVTlkP+Gd6YQ2f1zWLeBfXEiPGZb
 q0p/qTrUFLHbRoJMMuWaUfaBxb8PeUfM6yllxrzvRxPJU25pbj8OW/O5ZAe9xP8G
 S17sQ2nhEoWZW9hqbuA39IcLGa6RjT+TD+z3kmXQ9ZvCVDN2Oqqb/4ZNViwAvQq7
 t67EfV7hGXty3Q58tS4XE9hHfwY+9YqMDLNIS/ED+hP8rcxTmiLlAIyk+qbT3b0l
 Q+375Ar7iCgihPPHYxeM5Qe1+Vsfh4NjR9thdAbT245MB3f90ULb+GNP/izUDOgA
 c/Ot6pStVFEUxTol6RlcLb85PugzrkoBOF/8ZLySdMLhALjPwaFcQZ1sFdcKUKlE
 tt7sZKQgbbCfqYGS9K264uUfWbdmZh05zhtkH0xUjyQpyIcnrYQsSIIEEnlbYnPp
 0D55nooSGROKeud+gyrx
 =2LMr
 -----END PGP SIGNATURE-----

Merge tag 'clk-for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clock framework updates from Michael Turquette:
 "The changes to the common clock framework for 4.0 are mostly new clock
  drivers and updates to existing ones for feature enhancements and bug
  fixes.

  There is more churn than usual in the framework core due to the change
  to introduce per-user unique struct clk pointers in 4.0.  This caused
  several regressions to surface, some of which were sent as fixes to
  4.0.  New generic clock drivers were added for GPIO- and PWM-based
  clock controllers.

  Additionally the common clk-divider code recieved several fixes to the
  way it rounds rates"

* tag 'clk-for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (91 commits)
  clk: check ->determine/round_rate() return value in clk_calc_new_rates
  clk: at91: usb: propagate rate modification to the parent clk
  clk: samsung: exynos4: Disable ARMCLK down feature on Exynos4210 SoC
  clk: don't use __initconst for non-const arrays
  clk: at91: change to using endian agnositc IO
  clk: clk-gpio-gate: Fix active low
  clk: Add PWM clock driver
  clk: Add clock driver for mb86s7x
  clk: pxa: pxa3xx: add missing os timer clock
  clk: tegra: Use the proper parent for plld_dsi
  clk: tegra: Use generic tegra_osc_clk_init() on Tegra114
  clk: tegra: Model oscillator as clock
  clk: tegra: Add peripheral registers for bank Y
  clk: tegra: Register the proper number of resets
  clk: tegra: Remove needless initializations
  clk: tegra: Use consistent indentation
  clk: tegra: Various whitespace cleanups
  clk: tegra: Enable HDA to HDMI clocks on Tegra124
  clk: tegra: Fix a bunch of sparse warnings
  clk: tegra: Fix typo tabel -> table
  ...
2015-04-21 09:24:09 -07:00
Mauro Carvalho Chehab
64131a87f2 Merge branch 'drm-next-merged' of git://people.freedesktop.org/~airlied/linux into v4l_for_linus
* 'drm-next-merged' of git://people.freedesktop.org/~airlied/linux: (9717 commits)
  media-bus: Fixup RGB444_1X12, RGB565_1X16, and YUV8_1X24 media bus format
  hexdump: avoid warning in test function
  fs: take i_mutex during prepare_binprm for set[ug]id executables
  smp: Fix error case handling in smp_call_function_*()
  iommu-common: Fix PARISC compile-time warnings
  sparc: Make LDC use common iommu poll management functions
  sparc: Make sparc64 use scalable lib/iommu-common.c functions
  Break up monolithic iommu table/lock into finer graularity pools and lock
  sparc: Revert generic IOMMU allocator.
  tools/power turbostat: correct dumped pkg-cstate-limit value
  tools/power turbostat: calculate TSC frequency from CPUID(0x15) on SKL
  tools/power turbostat: correct DRAM RAPL units on recent Xeon processors
  tools/power turbostat: Initial Skylake support
  tools/power turbostat: Use $(CURDIR) instead of $(PWD) and add support for O= option in Makefile
  tools/power turbostat: modprobe msr, if needed
  tools/power turbostat: dump MSR_TURBO_RATIO_LIMIT2
  tools/power turbostat: use new MSR_TURBO_RATIO_LIMIT names
  Bluetooth: hidp: Fix regression with older userspace and flags validation
  config: Enable NEED_DMA_MAP_STATE by default when SWIOTLB is selected
  perf/x86/intel/pt: Fix and clean up error handling in pt_event_add()
  ...

That solves several merge conflicts:
	Documentation/DocBook/media/v4l/subdev-formats.xml
	Documentation/devicetree/bindings/vendor-prefixes.txt
	drivers/staging/media/mn88473/mn88473.c
	include/linux/kconfig.h
	include/uapi/linux/media-bus-format.h

The ones at subdev-formats.xml and media-bus-format.h are not trivial.
That's why we opted to merge from DRM.
2015-04-21 09:44:55 -03:00
Sumit Semwal
d8fbe341be dma-buf: cleanup dma_buf_export() to make it easily extensible
At present, dma_buf_export() takes a series of parameters, which
makes it difficult to add any new parameters for exporters, if required.

Make it simpler by moving all these parameters into a struct, and pass
the struct * as parameter to dma_buf_export().

While at it, unite dma_buf_export_named() with dma_buf_export(), and
change all callers accordingly.

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Acked-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
2015-04-21 14:47:16 +05:30
Tom Herbert
4e18b9adf2 net: add skb_checksum_complete_unset
This function changes ip_summed to CHECKSUM_NONE if CHECKSUM_COMPLETE
is set. This is called to discard checksum-complete when packet
is being modified and checksum is not pulled for headers in a layer.

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-20 21:57:26 -04:00
Linus Torvalds
646da63172 Suman Anna is adding remoteproc support for processors not behind IOMMUs.
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJVNUorAAoJELLolMlTRIoMjcoP/0Zl1xVG0PWtaOvgbsim6n7P
 DNR+d+QLcDn4ThaDGm6FLy5JWT7X2TPmrIV+k8PmgStPJ7jXvocFijy6brvdpv77
 HvM+6umOXwI1lg6RgXvmk+aAFiH2v+PQx3hPMPDROT0FhRBMBOWf99TzVZZaBlpH
 pcbfKv6wwB84jsN0rpghzCPuE9ErBtSEbz5EfAlNakdTeuU5n8a7IMtIn9oWldrQ
 HMUNeFxs2zaN4x8nwqGCoFmPwBBTiD1GXpTWnUiNsrSaj8wvmvoSS5NX4VKkxcOI
 mWnUa59OsoNbj1NPs+m2q+rqj0u62H0hrQMELKgiXiU5Py2lle1adfKlzuV1dzpa
 AemBA1N7IACwSlK5W5Y223XRTs6S7sx4Gs5shCMmF9oNwVFhw+484bOQJcicM2gQ
 XdZiy689K2TIYR/+vhiyHXUm7aem4V1RtYIiq48FDbCUI3MHY6qY01cJ+hpCojCU
 Q6SWmLte29IfCzmRZclHSQuah1L70NzD+FJ5qvmtocaQXmpjk8cTdcNkFtHCN2mx
 SwX8vRyaf++y33ygg1NeE58CUrkCc5LNMOzRyVl1+CQlb2yVMgADdbPbnqFiWgR7
 e4LfTL8a5eoeimVOtENieknyI5r/IK4GIihuwcGU0mTajWV1yoGKn9Y2PQtup+Bn
 gJ+JjEyLchMYvZp26FEp
 =a3aV
 -----END PGP SIGNATURE-----

Merge tag 'remoteproc-4.1-next' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc

Pull remoteproc update from Ohad Ben-Cohen:
 "Suman Anna is adding remoteproc support for processors not behind
  IOMMUs"

* tag 'remoteproc-4.1-next' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc:
  remoteproc: add IOMMU hardware capability flag
2015-04-20 15:40:10 -07:00
Linus Torvalds
14aa024490 Merge branch 'drm-next-merged' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie:
 "Highlights:

  Core:
   - Virtual GEM layer merged, this has been around for a long time, and
     it provides a software backed device that allows userspace to use
     it as a GEM shared memory handler.  This makes it a lot easier to
     do certain things when you have no GPU but still have to deal with
     DRI expectations.
   - atomic helper updates.
   - framebuffer modifier interface added.
   - i2c over auxch displayport fixes.
   - fb width/height confusion fixes.
   - new driver for ps8622/ps8625 bridge chips
   - lots of new panels

  i915:
   - more plane atomic conversion
   - vGPU guest support for XenGT
   - Skylake workarounds and fixes
   - Y-tiling support
   - work on dynamic pagetable allocation
   - EU count report param for gen9+
   - CHV fixes (no longer prelim)
   - remove ilk rc6
   - frontbuffer tracking for fbc
   - Displayport link rate refactoring
   - sprite colorkey refactor

  radeon:
   - Displayport MST support (not enabled by default)
   - non-ATOM native hw auxch support (DCE5+)
   - output csc support
   - new queries for userspace debug support
   - new VCE packet

  nouveau:
   - gk20a iommu support
   - gm107 graphics support
   - more gm20x bringup (waiting on signed nvidia fw).

  amdkfd:
   - multiple kgd instance support
   - use 64-bit time accessors

  msm:
   - stolen memory support
   - DSI and dual-DSI support
   - snapdragon 410 support

  exynos:
   - cleanups for atomic and pageflip

  imx-drm:
   - more media-bus formats
   - TV output prep
   - drm panel support

  tegra:
   - hw vblank counter using host1x syncpoints

  omap:
   - universal plane support
   - prep work for atomic modesetting

  rcar-du:
   - ported to atomic modesetting

  atmel-hlcdc:
   - ported to atomic modesetting
   - added suspend/resume support

  sti:
   - ported to atomic modesetting

  dwhdmi:
   - more compliant audio support
   - update rockchip phy support

  tda998x:
   - DT probing for attached crtcs
   - simplified EDID reading

  rockchip:
   - fixes

  adv7511:
   - fixes"

* 'drm-next-merged' of git://people.freedesktop.org/~airlied/linux: (689 commits)
  media-bus: Fixup RGB444_1X12, RGB565_1X16, and YUV8_1X24 media bus format
  drm/i915: Dont enable CS_PARSER_ERROR interrupts at all
  drm/i915: Move drm_framebuffer_unreference out of struct_mutex for takeover
  drm: fix trivial typo mistake
  drm: Make integer overflow checking cover universal cursor updates (v2)
  drm/nouveau/bios: fix fetching from acpi on certain systems
  drm/nouveau/gr/gm206: initial init+ctx code
  drm/nouveau/ce/gm206: enable support via gm204 code
  drm/nouveau/fifo/gm206: enable support via gm204 code
  drm/nouveau/gr/gm204: initial init+ctx code
  drm/nouveau: support for buffer moves via MaxwellDmaCopyA
  drm/nouveau/ce/gm204: initial support
  drm/nouveau: add support for gm20x fifo channels
  drm/nouveau/fifo/gm204: initial support
  drm/nouveau/gr/gk104-: prevent reading non-existent regs in intr handler
  drm/nouveau/gr/gm107: very slightly demagic part of attrib cb setup
  drm/nouveau/gr/gk104-: correct crop/zrop num_active_fbps setting
  drm/nouveau/gr/gf100-: add symbolic names for classes
  drm/nouveau/gr/gm107: support tpc "strand" ctxsw in gpccs ucode
  drm/nouveau/gr/gf100-: support mmio access with gpc offset from gpccs ucode
  ...
2015-04-20 14:06:06 -07:00
Vinod Koul
b53c758280 Merge branch 'topic/sh' into for-linus 2015-04-21 00:21:14 +05:30
Linus Torvalds
79319a052c IOMMU Updates for Linux v4.1
Not much this time, but the changes include:
 
 	* Moving domain allocation into the iommu drivers to prepare for
 	  the introduction of default domains for devices
 
 	* Fixing the IO page-table code in the AMD IOMMU driver to
 	  correctly encode large page sizes
 
 	* Extension of the PCI support in the ARM-SMMU driver
 
 	* Various fixes and cleanups
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJVNFIPAAoJECvwRC2XARrj4v8QAMVsPJ+kmnLvqGDkO9v2i9z6
 sFX27h55HhK3Pgb5aEmEhvZd0Eec22KtuADr92LsRSjskgA4FgrzzSlo8w7+MbwM
 dtowij+5Bzx/jEeexM5gog0ZA9Brl725KSYBmwJIAroKAtl3YXsIA4TO7X/JtXJm
 0qWbCxLs9CX5uWyJawkeDl8UAaZYb8AHKv1UhJt8Z5yajM/qITMULi51g2Bgh8kx
 YaRHeZNj+mFQqb6IlNkmOhILN+dbTdxQREp+aJs1alGdkBGlJyfo6eK4weNOpA4x
 gc8EXUWZzj1GEPyWMpA/ZMzPzCbj9M6wTeXqRiTq31AMV10zcy545uYcLWks680M
 CYvWTmjeCvwsbuaj9cn+efa47foH2UoeXxBmXWOJDv4WxcjE1ejmlmSd8WYfwkh9
 hIkMzD8tW2iZf3ssnjCeQLa7f6ydL2P4cpnK2JH+N7hN9VOASAlciezroFxtCjU+
 18T7ozgUTbOXZZomBX7OcGQ8ElXMiHB/uaCyNO64yVzApsUnQfpHzcRI5OavOYn5
 dznjrzvNLCwHs3QFI4R7rsmIfPkOM0g5nY5drGwJ23+F+rVpLmpWVPR5hqT7a1HM
 tJVmzces6HzOu7P1Mo0IwvNbZEmNBGTHYjGtWs6e79MQxdriFT4I+DwvFOy7GUq/
 Is2b+HPwWhiWJHQXLTT2
 =FMxH
 -----END PGP SIGNATURE-----

Merge tag 'iommu-updates-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU updates from Joerg Roedel:
 "Not much this time, but the changes include:

   - moving domain allocation into the iommu drivers to prepare for the
     introduction of default domains for devices

   - fixing the IO page-table code in the AMD IOMMU driver to correctly
     encode large page sizes

   - extension of the PCI support in the ARM-SMMU driver

   - various fixes and cleanups"

* tag 'iommu-updates-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (34 commits)
  iommu/amd: Correctly encode huge pages in iommu page tables
  iommu/amd: Optimize amd_iommu_iova_to_phys for new fetch_pte interface
  iommu/amd: Optimize alloc_new_range for new fetch_pte interface
  iommu/amd: Optimize iommu_unmap_page for new fetch_pte interface
  iommu/amd: Return the pte page-size in fetch_pte
  iommu/amd: Add support for contiguous dma allocator
  iommu/amd: Don't allocate with __GFP_ZERO in alloc_coherent
  iommu/amd: Ignore BUS_NOTIFY_UNBOUND_DRIVER event
  iommu/amd: Use BUS_NOTIFY_REMOVED_DEVICE
  iommu/tegra: smmu: Compute PFN mask at runtime
  iommu/tegra: gart: Set aperture at domain initialization time
  iommu/tegra: Setup aperture
  iommu: Remove domain_init and domain_free iommu_ops
  iommu/fsl: Make use of domain_alloc and domain_free
  iommu/rockchip: Make use of domain_alloc and domain_free
  iommu/ipmmu-vmsa: Make use of domain_alloc and domain_free
  iommu/shmobile: Make use of domain_alloc and domain_free
  iommu/msm: Make use of domain_alloc and domain_free
  iommu/tegra-gart: Make use of domain_alloc and domain_free
  iommu/tegra-smmu: Make use of domain_alloc and domain_free
  ...
2015-04-20 10:50:05 -07:00
Linus Torvalds
6496edfce9 This is the final removal (after several years!) of the obsolete cpus_*
functions, prompted by their mis-use in staging.
 
 With these function removed, all cpu functions should only iterate to
 nr_cpu_ids, so we finally only allocate that many bits when cpumasks
 are allocated offstack.
 
 Thanks,
 Rusty.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJVNPMuAAoJENkgDmzRrbjx7ZIP/j65e6xs1jEyXR3WOYSdTU1x
 bMo6JcII6O1oEZLgyKXgx9KiBg6uIIDta1NG/H/XIe354dwfHVsHvj5HHHQR5Xof
 iRrjLOaHj4XglI3hvsk0eEEl3/OBBLgyo9bUwDvMF1fmr/9tW4caMs3Op6n7Evzm
 YIvoAyeJ0A8BfEtOU5lXhcVIGmnHtSw0x6mdGXpXIBmWYQPCtdQP868s4lnl44w0
 bSNpAYdzEqg64Ph3SK0prgWPrn5+5EiaAhV7HZzENZ5+o0DAdIXWq/W7uHyCWPKH
 536cJDojec+nSUQkPYngngGprxrKO02aBcMw/3JGJ0tdCDj8yw3XAyVAFzz4hmMb
 Lkmyv4QHHIILLvJ4ZRH5KHWCjjVBg41LNCs2H3HnoxFACdm0lZYKHsUAh2ucBVtU
 Wb/eHmLxOG43UIkpX4yrhy3SfE1ZdnOVzEzOzPXtr51t8ojqk+bLFe/hJ6EkzrQX
 X+90qHfBq+PMJlAnc3zdXHjxoJrL6KPWVwVvFrNeibgEKtVvy/BiwZkS6QceC1Ea
 TatOYA5r6awFVHHQCooN1DGAxN5Juvu2SmdnTUA9ymsCNDghj1YUoAKRNP81u8Sa
 pe3hco/63iCuPna+vlwNDU6SgsaMk9m0p+1n1BiDIfVJIkWYCNeG+u2gQkzbDKlQ
 AJuKKQv1QuZiF0ylZ0wq
 =VAgA
 -----END PGP SIGNATURE-----

Merge tag 'cpumask-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

Pull final removal of deprecated cpus_* cpumask functions from Rusty Russell:
 "This is the final removal (after several years!) of the obsolete
  cpus_* functions, prompted by their mis-use in staging.

  With these function removed, all cpu functions should only iterate to
  nr_cpu_ids, so we finally only allocate that many bits when cpumasks
  are allocated offstack"

* tag 'cpumask-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (25 commits)
  cpumask: remove __first_cpu / __next_cpu
  cpumask: resurrect CPU_MASK_CPU0
  linux/cpumask.h: add typechecking to cpumask_test_cpu
  cpumask: only allocate nr_cpumask_bits.
  Fix weird uses of num_online_cpus().
  cpumask: remove deprecated functions.
  mips: fix obsolete cpumask_of_cpu usage.
  x86: fix more deprecated cpu function usage.
  ia64: remove deprecated cpus_ usage.
  powerpc: fix deprecated CPU_MASK_CPU0 usage.
  CPU_MASK_ALL/CPU_MASK_NONE: remove from deprecated region.
  staging/lustre/o2iblnd: Don't use cpus_weight
  staging/lustre/libcfs: replace deprecated cpus_ calls with cpumask_
  staging/lustre/ptlrpc: Do not use deprecated cpus_* functions
  blackfin: fix up obsolete cpu function usage.
  parisc: fix up obsolete cpu function usage.
  tile: fix up obsolete cpu function usage.
  arm64: fix up obsolete cpu function usage.
  mips: fix up obsolete cpu function usage.
  x86: fix up obsolete cpu function usage.
  ...
2015-04-20 10:19:03 -07:00
Linus Torvalds
f4d03bd143 smp: don't use 16-bit words for atomic accesses
Yes, it should work, but it's a bad idea.  Not only did ARM64 not have
the 16-bit access code (there's a separate patch to add it), it's just
not a good atomic type.  Some architectures fundamentally don't do
atomic accesses in them (alpha), and it's not like it saves any space
here anyway because of structure packing issues.

We normally should aim for flags to be "unsigned int" or "unsigned
long".  And if space is at a premium, use a single byte (although that
causes problems on alpha again).  There might be very special cases
where a 16-byte entity is really wanted, but this is not one of them.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-04-20 09:08:49 -07:00
Ilya Dryomov
9571eb4f96 libceph: simplify our debugfs attr macro
No need to do single_open()'s job ourselves.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2015-04-20 18:55:39 +03:00
Ilya Dryomov
5cf7bd3012 libceph: expose client options through debugfs
Add a client_options attribute for showing libceph options.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2015-04-20 18:55:39 +03:00
Ilya Dryomov
ff40f9ae95 libceph, ceph: split ceph_show_options()
Split ceph_show_options() into two pieces and move the piece
responsible for printing client (libceph) options into net/ceph.  This
way people adding a libceph option wouldn't have to remember to update
code in fs/ceph.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2015-04-20 18:55:38 +03:00
Joe Perches
3ef650d398 libceph: osdmap.h: Add missing format newlines
To avoid possible interleaving, add missing '\n' to formats.

Convert pr_warning to pr_warn while there.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2015-04-20 18:55:35 +03:00
Dave Airlie
2c33ce009c Merge Linus master into drm-next
The merge is clean, but the arm build fails afterwards,
due to API changes in the regulator tree.

I've included the patch into the merge to fix the build.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-04-20 13:05:20 +10:00
Linus Torvalds
64fb1d0e97 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Pull sparc fixes from David Miller
 "Unfortunately, I brown paper bagged the generic iommu pool allocator
  by applying the wrong revision of the patch series.

  This reverts the bad one, and puts the right one in"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  iommu-common: Fix PARISC compile-time warnings
  sparc: Make LDC use common iommu poll management functions
  sparc: Make sparc64 use scalable lib/iommu-common.c functions
  Break up monolithic iommu table/lock into finer graularity pools and lock
  sparc: Revert generic IOMMU allocator.
2015-04-18 18:01:29 -04:00
Sowmini Varadhan
ff7d37a502 Break up monolithic iommu table/lock into finer graularity pools and lock
Investigation of multithreaded iperf experiments on an ethernet
interface show the iommu->lock as the hottest lock identified by
lockstat, with something of the order of  21M contentions out of
27M acquisitions, and an average wait time of 26 us for the lock.
This is not efficient. A more scalable design is to follow the ppc
model, where the iommu_map_table has multiple pools, each stretching
over a segment of the map, and with a separate lock for each pool.
This model allows for better parallelization of the iommu map search.

This patch adds the iommu range alloc/free function infrastructure.

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-18 12:32:59 -07:00
David S. Miller
c12f048ffd sparc: Revert generic IOMMU allocator.
I applied the wrong version of this patch series, V4 instead
of V10, due to a patchwork bundling snafu.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-18 12:31:25 -07:00
Linus Torvalds
8f502d5b9e Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull usernamespace mount fixes from Eric Biederman:
 "Way back in October Andrey Vagin reported that umount(MNT_DETACH)
  could be used to defeat MNT_LOCKED.  As I worked to fix this I
  discovered that combined with mount propagation and an appropriate
  selection of shared subtrees a reference to a directory on an
  unmounted filesystem is not necessary.

  That MNT_DETACH is allowed in user namespace in a form that can break
  MNT_LOCKED comes from my early misunderstanding what MNT_DETACH does.

  To avoid breaking existing userspace the conflict between MNT_DETACH
  and MNT_LOCKED is fixed by leaving mounts that are locked to their
  parents in the mount hash table until the last reference goes away.

  While investigating this issue I also found an issue with
  __detach_mounts.  The code was unnecessarily and incorrectly
  triggering mount propagation.  Resulting in too many mounts going away
  when a directory is deleted, and too many cpu cycles are burned while
  doing that.

  Looking some more I realized that __detach_mounts by only keeping
  mounts connected that were MNT_LOCKED it had the potential to still
  leak information so I tweaked the code to keep everything locked
  together that possibly could be.

  This code was almost ready last cycle but Al invented fs_pin which
  slightly simplifies this code but required rewrites and retesting, and
  I have not been in top form for a while so it took me a while to get
  all of that done.  Similiarly this pull request is late because I have
  been feeling absolutely miserable all week.

  The issue of being able to escape a bind mount has not yet been
  addressed, as the fixes are not yet mature"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
  mnt: Update detach_mounts to leave mounts connected
  mnt: Fix the error check in __detach_mounts
  mnt: Honor MNT_LOCKED when detaching mounts
  fs_pin: Allow for the possibility that m_list or s_list go unused.
  mnt: Factor umount_mnt from umount_tree
  mnt: Factor out unhash_mnt from detach_mnt and umount_tree
  mnt: Fail collect_mounts when applied to unmounted mounts
  mnt: Don't propagate unmounts to locked mounts
  mnt: On an unmount propagate clearing of MNT_LOCKED
  mnt: Delay removal from the mount hash.
  mnt: Add MNT_UMOUNT flag
  mnt: In umount_tree reuse mnt_list instead of mnt_hash
  mnt: Don't propagate umounts in __detach_mounts
  mnt: Improve the umount_tree flags
  mnt: Use hlist_move_list in namespace_unlock
2015-04-18 11:20:31 -04:00
Linus Torvalds
06a60deca8 Merge tag 'for-f2fs-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
 "New features:
   - in-memory extent_cache
   - fs_shutdown to test power-off-recovery
   - use inline_data to store symlink path
   - show f2fs as a non-misc filesystem

  Major fixes:
   - avoid CPU stalls on sync_dirty_dir_inodes
   - fix some power-off-recovery procedure
   - fix handling of broken symlink correctly
   - fix missing dot and dotdot made by sudden power cuts
   - handle wrong data index during roll-forward recovery
   - preallocate data blocks for direct_io

  ... and a bunch of minor bug fixes and cleanups"

* tag 'for-f2fs-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (71 commits)
  f2fs: pass checkpoint reason on roll-forward recovery
  f2fs: avoid abnormal behavior on broken symlink
  f2fs: flush symlink path to avoid broken symlink after POR
  f2fs: change 0 to false for bool type
  f2fs: do not recover wrong data index
  f2fs: do not increase link count during recovery
  f2fs: assign parent's i_mode for empty dir
  f2fs: add F2FS_INLINE_DOTS to recover missing dot dentries
  f2fs: fix mismatching lock and unlock pages for roll-forward recovery
  f2fs: fix sparse warnings
  f2fs: limit b_size of mapped bh in f2fs_map_bh
  f2fs: persist system.advise into on-disk inode
  f2fs: avoid NULL pointer dereference in f2fs_xattr_advise_get
  f2fs: preallocate fallocated blocks for direct IO
  f2fs: enable inline data by default
  f2fs: preserve extent info for extent cache
  f2fs: initialize extent tree with on-disk extent info of inode
  f2fs: introduce __{find,grab}_extent_tree
  f2fs: split set_data_blkaddr from f2fs_update_extent_cache
  f2fs: enable fast symlink by utilizing inline data
  ...
2015-04-18 11:17:20 -04:00
Linus Torvalds
d6a24d0640 The documentation tree update for 4.1. Numerous fixes, the overdue removal
of the i2o docs, some new Chinese translations, and, hopefully, the README
 fix that will end the flow of identical patches to that file.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJVMOeZAAoJEI3ONVYwIuV6/1YQAJwcVvd3ow6cMKuf8eRKMgjd
 crJUdRF9FTwyY21SRHBaonyiKOthnVedOUYnFQ5Z7jbII0EohJ//72nW0pQrHoGi
 0avkbM+ZAZzXfd/paOiZ5HtYkc8Bdc70mPU1fzfexnPm/JACOGznxQsob05r6/sT
 W1GyJcrLlp4uPrba9rhAdGtaa+mEFrt4SVCI+odXOnxQ/KOZSIu1n1F3bSSvL9zV
 YMBgRrCso+Cdtuhe4N3O1jsVy/hyOnvtqcUgwlD4VzElsshKvxdxHn47yeeWK1qI
 zZfGTv+q5QI/eZgIhBIrBpdCafgLipAmNZhX+M76xeNydhfhp60VizRgKfb6JiW1
 M+nLSnv2vxh4wgkJs7yWgW+8TJ0eCF/w2P/mBi6hDXuIul9gwgmNk+EZ7LONSh+2
 l3PV/dyswNs04qbYgFt2rygsxcg79RRbD54zi+S/3NU38/gh7nlidASKmNu1boG/
 KdZx3F0rmX/xQu4aQ5nIQl2N7sVLkEec+oN+ukQGyBTLVHkfAK06Z4EWUeYmmBKh
 M6gqRY5XJMtCm8D5bons/yZmwmpdZFZMxFGJ4enUwrfsJ8FQ8qy/KmFqF8SojGWQ
 HYs4ZUptz6SYa7K0Txe/q0pkrW+doy7t/Bz+JBNNdG7eLeHIpKhSqSlLIdB7MRKw
 NFA8a4PdgdMpf+Zr4bRy
 =LDbk
 -----END PGP SIGNATURE-----

Merge tag 'docs-for-linus' of git://git.lwn.net/linux-2.6

Pull documentation updates from Jonathan Corbet:
 "Numerous fixes, the overdue removal of the i2o docs, some new Chinese
  translations, and, hopefully, the README fix that will end the flow of
  identical patches to that file"

* tag 'docs-for-linus' of git://git.lwn.net/linux-2.6: (34 commits)
  Documentation/memcg: update memcg/kmem status
  Documentation: blackfin: Makefile: Typo building issue
  Documentation/vm/pagemap.txt: correct location of page-types tool
  Documentation/memory-barriers.txt: typo fix
  doc: Add guest_nice column to example output of `cat /proc/stat'
  Documentation/kernel-parameters: Move "eagerfpu" to its right place
  Documentation: gpio: Update ACPI part of the document to mention _DSD
  docs/completion.txt: Various tweaks and corrections
  doc: completion: context, scope and language fixes
  Documentation:Update Documentation/zh_CN/arm64/memory.txt
  Documentation:Update Documentation/zh_CN/arm64/booting.txt
  Documentation: Chinese translation of arm64/legacy_instructions.txt
  DocBook media: fix broken EIA hyperlink
  Documentation: tweak the maintainers entry
  README: Change gzip/bzip2 to xz compression format
  README: Update version number reference
  doc:pci: Fix typo in Documentation/PCI
  Documentation: drm: Use '->' when describing access through pointers.
  Documentation: Remove mentioning of block barriers
  Documentation/email-clients.txt: Fix one grammar mistake, add extra info about TB
  ...
2015-04-18 11:10:49 -04:00