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android_kernel_motorola_sm6225/mm
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Michel Lespinasse 53d30c2ae0 BACKPORT: FROMLIST: mm: implement speculative handling in filemap_fault() 
Extend filemap_fault() to handle speculative faults.

In the speculative case, we will only be fishing existing pages out of
the page cache. The logic we use mirrors what is done in the
non-speculative case, assuming that pages are found in the page cache,
are up to date and not already locked, and that readahead is not
necessary at this time. In all other cases, the fault is aborted to be
handled non-speculatively.

Signed-off-by: Michel Lespinasse <michel@lespinasse.org>
Link: https://lore.kernel.org/all/20210407014502.24091-26-michel@lespinasse.org/

Conflicts:
    mm/filemap.c

1. Added back file_ra_state variable used by SPF path.
2. Updated comment for filemap_fault to reflect SPF locking rules.

Bug: 161210518
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: I82eba7fcfc81876245c2e65bc5ae3d33ddfcc368
Git-commit: 59d4d125b7d0108b54860ea8584679d514ef07b0
Git-repo: https://android.googlesource.com/kernel/common/
[quic_c_spathi@quicinc.com: resolve trivial merge conflicts]
Signed-off-by: Srinivasarao Pathipati <quic_c_spathi@quicinc.com>
2023-03-14 18:44:42 +05:30
..
kasan Merge android-4.19.78 (75337a6) into msm-4.19 2020-03-16 23:09:43 -07:00
backing-dev.c
balloon_compaction.c
bootmem.c
cleancache.c
cma.c mm: cma: Print correct request pages 2021-03-02 18:45:12 +08:00
cma.h
cma_debug.c mm: cma: make writeable CMA debugfs optional 2019-08-06 12:35:54 +05:30
compaction.c Reverting below patches from android-4.19-stable.125 2020-07-29 13:12:56 +05:30
debug.c
debug_page_ref.c
dmapool.c UPSTREAM: mm: security: introduce init_on_alloc=1 and init_on_free=1 boot options 2019-08-30 11:58:12 +02:00
early_ioremap.c
fadvise.c
failslab.c
filemap.c BACKPORT: FROMLIST: mm: implement speculative handling in filemap_fault() 2023-03-14 18:44:42 +05:30
frame_vector.c UPSTREAM: mm: untag user pointers in get_vaddr_frames 2019-10-07 15:27:40 -04:00
frontswap.c
gup.c gup: document and work around "COW can break either way" issue 2022-07-22 14:44:55 +05:30
gup_benchmark.c mm/gup_benchmark.c: prevent integer overflow in ioctl 2019-12-01 09:17:07 +01:00
highmem.c
hmm.c mm/memory_hotplug: shrink zones when offlining memory 2020-01-29 16:43:27 +01:00
huge_memory.c gup: document and work around "COW can break either way" issue 2022-07-22 14:44:55 +05:30
hugetlb.c Merge android-4.19-stable.146 (443485d) into msm-4.19 2020-10-16 11:06:31 +05:30
hugetlb_cgroup.c mm: hugetlb: switch to css_tryget() in hugetlb_cgroup_charge_cgroup() 2019-11-20 18:45:20 +01:00
hwpoison-inject.c
init-mm.c
internal.h Reverting below patches from android-4.19-stable.125 2020-07-29 13:12:56 +05:30
interval_tree.c
Kconfig mm/Kconfig: forcing allocators to return ZONE_DMA32 memory 2020-09-29 09:15:00 -07:00
Kconfig.debug mm, oom: Modify default value of panic_on_oom 2019-06-04 12:17:56 -07:00
khugepaged.c Merge android-4.19-stable.152 (13abe23) into msm-4.19 2020-10-28 17:52:20 +05:30
kmemleak-test.c
kmemleak.c Merge android-4.19-stable.149 (9ce79d9) into msm-4.19 2020-10-21 09:25:49 +05:30
ksm.c Merge android-4.19-stable.125 (a483478) into msm-4.19 2020-09-20 23:45:10 +05:30
list_lru.c mm/list_lru.c: fix memory leak in __memcg_init_list_lru_node 2019-06-19 08:17:59 +02:00
maccess.c uaccess: Add non-pagefault user-space write function 2020-09-09 19:04:29 +02:00
madvise.c Merge android-4.19.95 (5da1114) into msm-4.19 2020-03-27 10:48:20 -07:00
Makefile Merge android-4.19-stable.125 (a483478) into msm-4.19 2020-09-20 23:45:10 +05:30
memblock.c Merge android-4.19-stable.125 (a483478) into msm-4.19 2020-09-20 23:45:10 +05:30
memcontrol.c mm/memcg: fix device private memcg accounting 2020-10-29 09:55:15 +01:00
memfd.c This is the 4.19.85 stable release 2019-11-20 20:43:17 +01:00
memory-failure.c Merge android-4.19-q.81 (9045ee1) into msm-4.19 2019-10-29 04:52:53 -07:00
memory.c ANDROID: mm: prevent reads of unstable pmd during speculation 2023-03-14 18:26:51 +05:30
memory_hotplug.c Merge android-4.19-stable.152 (13abe23) into msm-4.19 2020-10-28 17:52:20 +05:30
mempolicy.c Merge android-4.19-stable.157 (8ee67bc) into msm-4.19 2020-12-18 18:35:06 +05:30
mempool.c
memtest.c
migrate.c Merge android-4.19.110 (1984fff) into msm-4.19 2020-05-23 05:08:22 -07:00
mincore.c UPSTREAM: mm: untag user pointers passed to memory syscalls 2019-10-07 15:27:40 -04:00
mlock.c Merge android-4.19.95 (5da1114) into msm-4.19 2020-03-27 10:48:20 -07:00
mm_event.c ANDROID: GKI: support mm_event for FS/IO/UFS path 2020-05-30 00:09:49 +00:00
mm_init.c
mmap.c ANDROID: mm: use raw seqcount variants in vm_write_* 2021-10-21 22:57:43 -07:00
mmu_context.c
mmu_notifier.c mm/mmu_notifier: use hlist_add_head_rcu() 2019-07-31 07:27:08 +02:00
mmzone.c ANDROID: GKI: mm: Export symbols __next_zones_zonelist and zone_watermark_ok_safe 2020-04-10 02:39:42 +00:00
mprotect.c Merge android-4.19.110 (1984fff) into msm-4.19 2020-05-23 05:08:22 -07:00
mremap.c ANDROID: mm: use raw seqcount variants in vm_write_* 2021-10-21 22:57:43 -07:00
msync.c UPSTREAM: mm: untag user pointers passed to memory syscalls 2019-10-07 15:27:40 -04:00
nobootmem.c
nommu.c x86/mm: split vmalloc_sync_all() 2020-03-25 08:06:13 +01:00
oom_kill.c mm, oom_adj: don't loop through tasks in __set_oom_adj when not necessary 2020-10-29 09:55:15 +01:00
page-writeback.c mm/page-writeback.c: avoid potential division by zero in wb_min_max_ratio() 2020-01-23 08:21:31 +01:00
page_alloc.c Merge android-4.19-stable.152 (13abe23) into msm-4.19 2020-10-28 17:52:20 +05:30
page_counter.c mm/page_counter.c: fix protection usage propagation 2020-08-21 11:05:33 +02:00
page_ext.c mm: fix the page_owner initializing issue for arm32 2020-09-02 16:37:28 +08:00
page_idle.c mm/page_idle.c: fix oops because end_pfn is larger than max_pfn 2019-07-03 13:14:45 +02:00
page_io.c Merge android-4.19.110 (1984fff) into msm-4.19 2020-05-23 05:08:22 -07:00
page_isolation.c
page_owner.c Merge "Merge android-4.19-q.81 (9045ee1) into msm-4.19" 2019-11-06 06:40:33 -08:00
page_poison.c Merge android-4.19.95 (5da1114) into msm-4.19 2020-03-27 10:48:20 -07:00
page_vma_mapped.c
pagewalk.c mm: pagewalk: fix termination condition in walk_pte_range() 2020-10-01 13:14:32 +02:00
percpu-internal.h
percpu-km.c
percpu-stats.c
percpu-vm.c
percpu.c This is the 4.19.147 stable release 2020-09-24 12:48:04 +02:00
pgtable-generic.c
process_reclaim.c mm: process_reclaim: allow nomap-only reclaim 2020-07-02 04:35:02 -07:00
process_vm_access.c
quicklist.c
readahead.c Fixing Android Net Test compilation 2020-03-21 18:06:06 -07:00
rmap.c Merge android-4.19-q.68 (f3e9c9b) into msm-4.19 2019-08-28 23:55:13 -07:00
rodata_test.c
shmem.c Merge android-4.19-stable.125 (a483478) into msm-4.19 2020-09-20 23:45:10 +05:30
showmem.c
slab.c UPSTREAM: mm, slab: combine kmalloc_caches and kmalloc_dma_caches 2019-12-13 14:04:05 -08:00
slab.h UPSTREAM: kasan, kmemleak: pass tagged pointers to kmemleak 2019-09-24 17:44:14 -07:00
slab_common.c This is the 4.19.135 stable release 2020-07-29 13:22:30 +02:00
slob.c UPSTREAM: mm/sl[uo]b: export __kmalloc_track(_node)_caller 2020-11-02 16:12:14 +00:00
slub.c Merge android-4.19-stable.157 (8ee67bc) into msm-4.19 2020-12-18 18:35:06 +05:30
sparse-vmemmap.c
sparse.c mm/memory_hotplug: remove "zone" parameter from sparse_remove_one_section 2020-01-29 16:43:26 +01:00
swap.c Merge android-4.19.63 (75ff56e) into msm-4.19 2019-08-13 01:20:38 -07:00
swap_cgroup.c
swap_ratio.c
swap_slots.c mm: swap: Add null pointer check 2019-06-18 12:45:01 -07:00
swap_state.c Merge android-4.19-stable.149 (9ce79d9) into msm-4.19 2020-10-21 09:25:49 +05:30
swapfile.c Merge android-4.19-stable.149 (9ce79d9) into msm-4.19 2020-10-21 09:25:49 +05:30
truncate.c
usercopy.c Merge android-4.19-q.79 (40321f2) into msm-4.19 2019-10-21 05:07:30 -07:00
userfaultfd.c hugetlb: use same fault hash key for shared and private mappings 2019-05-22 07:37:40 +02:00
util.c This is the 4.19.129 stable release 2020-06-22 10:50:54 +02:00
vmacache.c
vmalloc.c Merge android-4.19-stable.125 (a483478) into msm-4.19 2020-09-20 23:45:10 +05:30
vmpressure.c Merge android-4.19-q.80 (fd673e8) into msm-4.19 2019-10-21 05:33:39 -07:00
vmscan.c Merge android-4.19-stable.149 (9ce79d9) into msm-4.19 2020-10-21 09:25:49 +05:30
vmstat.c Merge android-4.19-stable.136 (204dd19) into msm-4.19 2020-10-14 20:04:29 +05:30
workingset.c
z3fold.c
zbud.c
zpool.c
zsmalloc.c Merge android-4.19-q.94 (dabb11d) into msm-4.19 2020-02-03 21:41:48 -08:00
zswap.c