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Matthew Wilcox (Oracle) 3ebafb7b46 BACKPORT: FROMGIT: mm: handle faults that merely update the accessed bit under the VMA lock 
Move FAULT_FLAG_VMA_LOCK check out of handle_pte_fault().  This should
have a significant performance improvement for mmaped files.  Write faults
(on read-only shared pages) still take the mmap lock as we do not want to
audit all the implementations of ->pfn_mkwrite() and ->page_mkwrite().
However write-faults on private mappings are handled under the VMA lock.

Link: https://lkml.kernel.org/r/20230724185410.1124082-11-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Arjun Roy <arjunroy@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Punit Agrawal <punit.agrawal@bytedance.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

(cherry picked from commit 88e2667632d43928d3ed50d0163ecd73aaa2d455
https: //git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-unstable)
[surenb: replaced folio_put() with put_page() in wp_page_shared()]

Bug: 293665307
Change-Id: I27ac40bb0f7347083f641e0cfc8ab33e182c4c5b
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
2023-08-16 09:59:56 -07:00
..
damon BACKPORT: FROMGIT: mm: enable page walking API to lock vmas during the walk 2023-08-16 16:55:02 +00:00
kasan UPSTREAM: kasan: suppress recursive reports for HW_TAGS 2023-07-12 21:18:49 +00:00
kfence UPSTREAM: mm,kfence: decouple kfence from page granularity mapping judgement 2023-05-31 17:22:42 +00:00
kmsan UPSTREAM: mm: kmsan: handle alloc failures in kmsan_vmap_pages_range_noflush() 2023-05-31 15:20:12 +00:00
backing-dev.c writeback, cgroup: fix null-ptr-deref write in bdi_split_work_to_wbs 2023-04-26 14:28:39 +02:00
balloon_compaction.c
bootmem_info.c bootmem: remove the vmemmap pages from kmemleak in put_page_bootmem 2022-08-28 14:02:45 -07:00
cleancache.c ANDROID: Revert "mm: remove cleancache" 2023-04-26 17:01:50 +00:00
cma.c
cma.h
cma_debug.c mm/cma_debug: show complete cma name in debugfs directories 2022-09-11 20:25:50 -07:00
cma_sysfs.c
compaction.c This is the 6.1.9 stable release 2023-02-01 09:12:59 +00:00
debug.c UPSTREAM: mm: export dump_mm() 2023-06-07 14:24:58 +00:00
debug_page_ref.c
debug_vm_pgtable.c
dmapool.c
early_ioremap.c
fadvise.c UPSTREAM: mm: support POSIX_FADV_NOREUSE 2023-04-12 16:02:15 +00:00
failslab.c mm: fix unexpected changes to {failslab|fail_page_alloc}.attr 2022-11-22 18:50:44 -08:00
filemap.c FROMGIT: mm: handle swap page faults under per-VMA lock 2023-08-16 09:59:37 -07:00
folio-compat.c mm: remove try_to_free_swap() 2022-10-03 14:02:53 -07:00
frontswap.c frontswap: don't call ->init if no ops are registered 2022-09-26 12:14:34 -07:00
gup.c BACKPORT: mm: always expand the stack with the mmap write lock held 2023-07-27 11:47:21 +00:00
gup_test.c
gup_test.h
highmem.c highmem: fix kmap_to_page() for kmap_local_page() addresses 2022-10-12 18:51:51 -07:00
hmm.c BACKPORT: FROMGIT: mm: enable page walking API to lock vmas during the walk 2023-08-16 16:55:02 +00:00
huge_memory.c UPSTREAM: mm/huge_memory.c: warn with pr_warn_ratelimited instead of VM_WARN_ON_ONCE_FOLIO 2023-05-30 17:15:55 +00:00
hugetlb.c FROMGIT: mm: move FAULT_FLAG_VMA_LOCK check from handle_mm_fault() 2023-08-16 09:59:51 -07:00
hugetlb_cgroup.c hugetlb_cgroup: use helper for_each_hstate and hstate_index 2022-09-11 20:25:53 -07:00
hugetlb_vmemmap.c mm: hugetlb_vmemmap: include missing linux/moduleparam.h 2022-11-08 15:57:23 -08:00
hugetlb_vmemmap.h
hwpoison-inject.c mm/hwpoison: add __init/__exit annotations to module init/exit funcs 2022-10-03 14:03:05 -07:00
init-mm.c UPSTREAM: mm: add per-VMA lock and helper functions to control it 2023-06-07 14:24:59 +00:00
internal.h FROMLIST: mm: Allow fault_dirty_shared_page() to be called under the VMA lock 2023-08-16 09:59:56 -07:00
interval_tree.c
io-mapping.c
ioremap.c
Kconfig BACKPORT: mm: introduce new 'lock_mm_and_find_vma()' page fault helper 2023-07-26 09:57:34 +00:00
Kconfig.debug UPSTREAM: mm: change per-VMA lock statistics to be disabled by default 2023-06-07 14:25:02 +00:00
khugepaged.c UPSTREAM: mm/khugepaged: write-lock VMA while collapsing a huge page 2023-06-07 14:24:59 +00:00
kmemleak.c BACKPORT: mm/kmemleak: fix UAF bug in kmemleak_scan() 2023-05-15 19:08:33 +00:00
ksm.c BACKPORT: FROMGIT: mm: enable page walking API to lock vmas during the walk 2023-08-16 16:55:02 +00:00
list_lru.c
maccess.c maccess: Fix writing offset in case of fault in strncpy_from_kernel_nofault() 2022-11-11 11:44:46 -08:00
madvise.c FROMGIT: mm: lock vma explicitly before doing vm_flags_reset and vm_flags_reset_once 2023-08-16 16:55:02 +00:00
Makefile ANDROID: mm: introduce page_pinner 2023-05-16 21:34:27 +00:00
mapping_dirty_helpers.c
memblock.c ANDROID: GKI: Export memblock_free to drivers 2023-03-01 21:29:20 +00:00
memcontrol.c BACKPORT: FROMGIT: mm: enable page walking API to lock vmas during the walk 2023-08-16 16:55:02 +00:00
memfd.c
memory-failure.c BACKPORT: FROMGIT: mm: enable page walking API to lock vmas during the walk 2023-08-16 16:55:02 +00:00
memory-tiers.c memory tier: release the new_memtier in find_create_memory_tier() 2023-03-10 09:34:27 +01:00
memory.c BACKPORT: FROMGIT: mm: handle faults that merely update the accessed bit under the VMA lock 2023-08-16 09:59:56 -07:00
memory_hotplug.c mm: add pageblock_aligned() macro 2022-10-03 14:03:04 -07:00
mempolicy.c BACKPORT: FROMGIT: mm: enable page walking API to lock vmas during the walk 2023-08-16 16:55:02 +00:00
mempool.c
memremap.c UPSTREAM: mm: introduce __vm_flags_mod and use it in untrack_pfn 2023-06-07 14:24:58 +00:00
memtest.c
migrate.c ANDROID: vendor_hooks: Add hooks for lookaround 2023-08-02 21:57:15 +00:00
migrate_device.c BACKPORT: FROMGIT: mm: enable page walking API to lock vmas during the walk 2023-08-16 16:55:02 +00:00
mincore.c BACKPORT: FROMGIT: mm: enable page walking API to lock vmas during the walk 2023-08-16 16:55:02 +00:00
mlock.c FROMGIT: mm: lock vma explicitly before doing vm_flags_reset and vm_flags_reset_once 2023-08-16 16:55:02 +00:00
mm_init.c mm: multi-gen LRU: groundwork 2022-09-26 19:46:09 -07:00
mm_slot.h mm: introduce common struct mm_slot 2022-10-03 14:02:43 -07:00
mmap.c BACKPORT: FROMGIT: mm: move vma locking out of vma_prepare and dup_anon_vma 2023-08-16 16:55:02 +00:00
mmap_lock.c
mmu_gather.c mm/khugepaged: fix GUP-fast interaction by sending IPI 2022-11-30 14:49:42 -08:00
mmu_notifier.c
mmzone.c ANDROID: mm: Create hooks for ZONE_MOVABLE allocs 2023-04-26 17:01:52 +00:00
mprotect.c FROMGIT: mm: lock vma explicitly before doing vm_flags_reset and vm_flags_reset_once 2023-08-16 16:55:02 +00:00
mremap.c UPSTREAM: mm/mremap: write-lock VMA while remapping it to a new address range 2023-06-07 14:25:00 +00:00
msync.c mm/msync: use vma_find() instead of vma linked list 2022-09-26 19:46:25 -07:00
nommu.c BACKPORT: mm: always expand the stack with the mmap write lock held 2023-07-27 11:47:21 +00:00
oom_kill.c mm: reduce noise in show_mem for lowmem allocations 2022-09-26 19:46:29 -07:00
page-writeback.c ANDROID: vendor_hooks:vendor hook for control memory dirty rate 2023-06-06 23:03:20 +00:00
page_alloc.c ANDROID: vendor_hooks: Add hooks for lookaround 2023-08-02 21:57:15 +00:00
page_counter.c mm: page_counter: remove unneeded atomic ops for low/min 2022-09-11 20:26:01 -07:00
page_ext.c ANDROID: mm: introduce page_pinner 2023-05-16 21:34:27 +00:00
page_idle.c
page_io.c use less confusing names for iov_iter direction initializers 2023-02-09 11:28:04 +01:00
page_isolation.c ANDROID: mm: introduce page_pinner 2023-05-16 21:34:27 +00:00
page_owner.c ANDROID: mm: add get_page_owner_handle function 2023-03-23 18:21:23 +00:00
page_pinner.c ANDROID: page_pinner: add missing page_pinner_put_page 2023-05-16 21:34:27 +00:00
page_poison.c
page_reporting.c ANDROID: KVM: arm64: balloon: Notify hyp before reporting free pages to host 2022-12-15 16:13:01 +00:00
page_reporting.h
page_table_check.c mm/page_table_check: fix typos 2022-10-03 14:03:27 -07:00
page_vma_mapped.c mm/swap: add swp_offset_pfn() to fetch PFN from swap entry 2022-09-26 19:46:05 -07:00
pagewalk.c BACKPORT: FROMGIT: mm: enable page walking API to lock vmas during the walk 2023-08-16 16:55:02 +00:00
percpu-internal.h
percpu-km.c
percpu-stats.c
percpu-vm.c
percpu.c ANDROID: mm: Export pcpu_nr_pages 2023-03-23 18:20:34 +00:00
pgalloc-track.h
pgtable-generic.c
process_vm_access.c use less confusing names for iov_iter direction initializers 2023-02-09 11:28:04 +01:00
ptdump.c mm: pagewalk: Fix race between unmap and page walker 2022-09-03 10:13:13 -07:00
readahead.c ANDROID: mm: Create hooks for ZONE_MOVABLE allocs 2023-04-26 17:01:52 +00:00
rmap.c ANDROID: vendor_hooks: Add hooks for lookaround 2023-08-02 21:57:15 +00:00
rodata_test.c mm/rodata_test: use PAGE_ALIGNED() helper 2022-10-03 14:03:05 -07:00
secretmem.c UPSTREAM: mm: replace vma->vm_flags direct modifications with modifier calls 2023-06-07 14:24:57 +00:00
shmem.c UPSTREAM: mm: replace vma->vm_flags direct modifications with modifier calls 2023-06-07 14:24:57 +00:00
shrinker_debug.c mm: shrinkers: fix deadlock in shrinker debugfs 2023-02-22 12:59:46 +01:00
shuffle.c mm/shuffle: convert module_param_call to module_param_cb 2022-10-03 14:03:07 -07:00
shuffle.h
slab.c Merge 6.1.22 into android14-6.1 2023-03-31 08:15:39 +00:00
slab.h ANDROID: mm: add get_each_object_track function 2023-03-23 18:21:15 +00:00
slab_common.c ANDROID: vendor_hooks: Add hooks for memory when debug 2023-05-25 21:06:40 +00:00
slob.c Merge branch 'slab/for-6.1/kmalloc_size_roundup' into slab/for-next 2022-09-29 11:30:55 +02:00
slub.c ANDROID: mm: add get_each_object_track function 2023-03-23 18:21:15 +00:00
sparse-vmemmap.c
sparse.c
swap.c mm: add folio_add_lru_vma() 2022-10-03 14:02:45 -07:00
swap.h FROMGIT: swap: remove remnants of polling from read_swap_cache_async 2023-07-19 18:48:39 +00:00
swap_cgroup.c mm: memcontrol: don't allocate cgroup swap arrays when memcg is disabled 2022-10-03 14:03:36 -07:00
swap_slots.c mm/swap: convert put_swap_page() to put_swap_folio() 2022-10-03 14:02:46 -07:00
swap_state.c FROMGIT: swap: remove remnants of polling from read_swap_cache_async 2023-07-19 18:48:39 +00:00
swapfile.c ANDROID: vendor hooks: Add hooks to support bootloader based hibernation 2023-06-07 14:25:04 +00:00
truncate.c ANDROID: Revert "mm: remove cleancache" 2023-04-26 17:01:50 +00:00
usercopy.c
userfaultfd.c mm/shmem: use page_mapping() to detect page cache for uffd continue 2022-11-08 15:57:23 -08:00
util.c Merge 27bc50fc90 ("Merge tag 'mm-stable-2022-10-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm") into android-mainline 2022-10-25 14:49:20 +02:00
vmalloc.c UPSTREAM: mm: replace vma->vm_flags direct modifications with modifier calls 2023-06-07 14:24:57 +00:00
vmpressure.c
vmscan.c BACKPORT: FROMGIT: mm: enable page walking API to lock vmas during the walk 2023-08-16 16:55:02 +00:00
vmstat.c UPSTREAM: mm: introduce per-VMA lock statistics 2023-06-07 14:25:01 +00:00
workingset.c BACKPORT: FROMGIT: Multi-gen LRU: fix workingset accounting 2023-05-27 00:38:36 +00:00
z3fold.c
zbud.c
zpool.c
zsmalloc.c ANDROID: zram: allow zram to allocate CMA pages 2023-04-26 17:01:52 +00:00
zswap.c mm/swap: remove the end_write_func argument to __swap_writepage 2022-09-11 20:25:50 -07:00