android_kernel_samsung_sm8650/mm
Suren Baghdasaryan c06661eab5 UPSTREAM: mm: fall back to mmap_lock if vma->anon_vma is not yet set
When vma->anon_vma is not set, page fault handler will set it by either
reusing anon_vma of an adjacent VMA if VMAs are compatible or by
allocating a new one.  find_mergeable_anon_vma() walks VMA tree to find a
compatible adjacent VMA and that requires not only the faulting VMA to be
stable but also the tree structure and other VMAs inside that tree.
Therefore locking just the faulting VMA is not enough for this search.
Fall back to taking mmap_lock when vma->anon_vma is not set.  This
situation happens only on the first page fault and should not affect
overall performance.

Link: https://lkml.kernel.org/r/20230227173632.3292573-25-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Reviewed-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

(cherry picked from commit 2ac0af1b66e3b66307f53b1cc446514308ec466d)

Bug: 161210518
Change-Id: Iafacad5bda7bb138b290f38421a22d828051b067
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
2023-06-07 14:25:01 +00:00
..
damon mm/damon/paddr: fix missing folio_put() 2023-03-10 09:34:20 +01:00
kasan This is the 6.1.13 stable release 2023-02-22 12:32:41 +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 mm: Convert all PageMovable users to movable_operations 2022-08-02 12:34:03 -04:00
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_debug.c mm/cma_debug: show complete cma name in debugfs directories 2022-09-11 20:25:50 -07:00
cma_sysfs.c
cma.c Merge 77fb622de1 ("Merge tag 'mm-hotfixes-stable-2022-05-27' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm") into android-mainline 2022-06-28 15:33:45 +02:00
cma.h mm/cma: provide option to opt out from exposing pages on activation failure 2022-03-22 15:57:09 -07:00
compaction.c This is the 6.1.9 stable release 2023-02-01 09:12:59 +00:00
debug_page_ref.c
debug_vm_pgtable.c docs: rename Documentation/vm to Documentation/mm 2022-06-27 12:52:53 -07:00
debug.c UPSTREAM: mm: export dump_mm() 2023-06-07 14:24:58 +00:00
dmapool.c
early_ioremap.c mm/early_ioremap: declare early_memremap_pgprot_adjust() 2022-03-22 15:57:11 -07:00
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 ANDROID: Revert "mm: remove cleancache" 2023-04-26 17:01:50 +00:00
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_test.c mm: rename is_pinnable_page() to is_longterm_pinnable_page() 2022-07-17 17:14:27 -07:00
gup_test.h
gup.c mm/gup: add folio to list when folio_isolate_lru() succeed 2023-02-22 12:59:54 +01:00
highmem.c highmem: fix kmap_to_page() for kmap_local_page() addresses 2022-10-12 18:51:51 -07:00
hmm.c mm/swap: add swp_offset_pfn() to fetch PFN from swap entry 2022-09-26 19:46:05 -07:00
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_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 mm: hugetlb_vmemmap: improve hugetlb_vmemmap code readability 2022-08-08 18:06:43 -07:00
hugetlb.c UPSTREAM: mm: replace VM_LOCKED_CLEAR_MASK with VM_LOCKED_MASK 2023-06-07 14:24:57 +00:00
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 UPSTREAM: mm: conditionally write-lock VMA in free_pgtables 2023-06-07 14:25:00 +00:00
interval_tree.c
io-mapping.c
ioremap.c mm: ioremap: Add ioremap/iounmap_allowed() 2022-06-27 12:22:31 +01:00
Kconfig UPSTREAM: mm: introduce CONFIG_PER_VMA_LOCK 2023-06-07 14:24:58 +00:00
Kconfig.debug ANDROID: mm: introduce page_pinner 2023-05-16 21:34:27 +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 mm/ksm: fix race with VMA iteration and mm_struct teardown 2023-03-30 12:49:29 +02:00
list_lru.c mm: kmem: make mem_cgroup_from_obj() vmalloc()-safe 2022-06-16 19:48:31 -07:00
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 UPSTREAM: mm: replace vma->vm_flags direct modifications with modifier calls 2023-06-07 14:24:57 +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 UPSTREAM: mm: multi-gen LRU: section for memcg LRU 2023-04-12 16:02:15 +00:00
memfd.c
memory_hotplug.c mm: add pageblock_aligned() macro 2022-10-03 14:03:04 -07:00
memory-failure.c mm/hwpoison: convert TTU_IGNORE_HWPOISON to TTU_HWPOISON 2023-03-10 09:34:25 +01:00
memory-tiers.c memory tier: release the new_memtier in find_create_memory_tier() 2023-03-10 09:34:27 +01:00
memory.c UPSTREAM: mm: fall back to mmap_lock if vma->anon_vma is not yet set 2023-06-07 14:25:01 +00:00
mempolicy.c migrate: hugetlb: check for hugetlb shared PMD in node migration 2023-02-09 11:28:23 +01:00
mempool.c mm/mempool: use might_alloc() 2022-06-16 19:48:30 -07:00
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_device.c mm/migrate_device: return number of migrating pages in args->cpages 2022-11-22 18:50:43 -08:00
migrate.c This is the 6.1.13 stable release 2023-02-22 12:32:41 +00:00
mincore.c mm: teach mincore_hugetlb about pte markers 2023-03-22 13:34:03 +01:00
mlock.c UPSTREAM: mm: introduce vm_flags_reset_once to replace WRITE_ONCE vm_flags updates 2023-06-07 14:24:58 +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_lock.c
mmap.c BACKPORT: mm: introduce vma detached flag 2023-06-07 14:25:00 +00:00
mmu_gather.c mm/khugepaged: fix GUP-fast interaction by sending IPI 2022-11-30 14:49:42 -08:00
mmu_notifier.c mm/mmu_notifier.c: fix race in mmu_interval_notifier_remove() 2022-04-21 20:01:10 -07:00
mmzone.c ANDROID: mm: Create hooks for ZONE_MOVABLE allocs 2023-04-26 17:01:52 +00:00
mprotect.c UPSTREAM: mm: replace vma->vm_flags direct modifications with modifier calls 2023-06-07 14:24:57 +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 UPSTREAM: mm: replace vma->vm_flags direct modifications with modifier calls 2023-06-07 14:24:57 +00:00
oom_kill.c mm: reduce noise in show_mem for lowmem allocations 2022-09-26 19:46:29 -07:00
OWNERS ANDROID: mm: remove hridya@ from OWNERS file 2022-04-21 22:43:10 +00:00
page_alloc.c ANDROID: vendor_hooks: add hooks for extra memory 2023-06-07 01:06:25 +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 mm: don't be stuck to rmap lock on reclaim path 2022-05-19 14:08:54 -07:00
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
page-writeback.c ANDROID: vendor_hooks:vendor hook for control memory dirty rate 2023-06-06 23:03:20 +00:00
pagewalk.c Merge 6d2453c3db ("drivers/block/zram/zram_drv.c: do not keep dangling zcomp pointer after zram reset") into android-mainline 2022-10-20 11:55:55 +02:00
percpu-internal.h percpu: improve percpu_alloc_percpu event trace 2022-05-13 07:20:18 -07:00
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 mm: avoid unnecessary flush on change_huge_pmd() 2022-05-13 07:20:05 -07:00
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 UPSTREAM: mm/khugepaged: write-lock VMA while collapsing a huge page 2023-06-07 14:24:59 +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_common.c ANDROID: vendor_hooks: Add hooks for memory when debug 2023-05-25 21:06:40 +00:00
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
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 mm: hugetlb_vmemmap: move vmemmap code related to HugeTLB to hugetlb_vmemmap.c 2022-08-08 18:06:42 -07:00
sparse.c mm: memory_hotplug: enumerate all supported section flags 2022-07-03 18:08:49 -07:00
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 swap_state: convert free_swap_cache() to use a folio 2022-10-03 14:02:51 -07:00
swap.c mm: add folio_add_lru_vma() 2022-10-03 14:02:45 -07:00
swap.h mm: remove lookup_swap_cache() 2022-10-03 14:02:51 -07:00
swapfile.c FROMLIST: mm: Call arch_swap_restore() from unuse_pte() 2023-06-05 21:53:19 +00:00
truncate.c ANDROID: Revert "mm: remove cleancache" 2023-04-26 17:01:50 +00:00
usercopy.c usercopy: use unsigned long instead of uintptr_t 2022-07-01 17:03:38 -07:00
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 ANDROID: mm: create vendor hooks for memory reclaim 2023-06-05 16:31:49 +00:00
vmstat.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
workingset.c BACKPORT: FROMGIT: Multi-gen LRU: fix workingset accounting 2023-05-27 00:38:36 +00:00
z3fold.c mm: Convert all PageMovable users to movable_operations 2022-08-02 12:34:03 -04:00
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