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Yang Shi dd0f230a0a mm: hwpoison: refactor refcount check handling 
Memory failure will report failure if the page still has extra pinned
refcount other than from hwpoison after the handler is done.  Actually
the check is not necessary for all handlers, so move the check into
specific handlers.  This would make the following keeping shmem page in
page cache patch easier.

There may be expected extra pin for some cases, for example, when the
page is dirty and in swapcache.

Link: https://lkml.kernel.org/r/20211020210755.23964-5-shy828301@gmail.com
Signed-off-by: Yang Shi <shy828301@gmail.com>
Signed-off-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Suggested-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-11-06 13:30:38 -07:00
..
damon
mm/damon/core-test: fix wrong expectations for 'damon_split_regions_of()'
2021-10-28 17:18:55 -07:00
kasan
kasan: arm64: fix pcpu_page_first_chunk crash with KASAN_VMALLOC
2021-11-06 13:30:37 -07:00
kfence
Merge branch 'akpm' (patches from Andrew)
2021-09-08 12:55:35 -07:00
backing-dev.c
mm: simplify bdi refcounting
2021-11-06 13:30:34 -07:00
balloon_compaction.c
mm: fix typos in comments
2021-05-07 00:26:35 -07:00
bootmem_info.c
mm/bootmem_info.c: mark __init on register_page_bootmem_info_section
2021-09-03 09:58:14 -07:00
cleancache.c
…
cma_debug.c
mm/cma: change cma mutex to irq safe spinlock
2021-05-05 11:27:21 -07:00
cma_sysfs.c
mm: cma: support sysfs
2021-05-05 11:27:24 -07:00
cma.c
mm: use proper type for cma_[alloc|release]
2021-05-05 11:27:24 -07:00
cma.h
mm: cma: support sysfs
2021-05-05 11:27:24 -07:00
compaction.c
Merge branch 'akpm' (patches from Andrew)
2021-09-08 12:55:35 -07:00
debug_page_ref.c
…
debug_vm_pgtable.c
mm: debug_vm_pgtable: don't use __P000 directly
2021-11-06 13:30:33 -07:00
debug.c
mm/debug: sync up latest migrate_reason to migrate_reason_names
2021-09-24 16:13:35 -07:00
dmapool.c
mm/dmapool: use DEVICE_ATTR_RO macro
2021-06-29 10:53:52 -07:00
early_ioremap.c
mm/early_ioremap.c: remove redundant early_ioremap_shutdown()
2021-09-08 11:50:24 -07:00
fadvise.c
mm, fadvise: improve the expensive remote LRU cache draining after FADV_DONTNEED
2020-10-13 18:38:29 -07:00
failslab.c
…
filemap.c
mm: filemap: coding style cleanup for filemap_map_pmd()
2021-11-06 13:30:38 -07:00
frontswap.c
mm/mempool: minor coding style tweaks
2021-05-05 11:27:27 -07:00
gup_test.c
selftests/vm: gup_test: test faulting in kernel, and verify pinnable pages
2021-05-05 11:27:26 -07:00
gup_test.h
selftests/vm: gup_test: fix test flag
2021-05-05 11:27:26 -07:00
gup.c
mm/gup: further simplify __gup_device_huge()
2021-11-06 13:30:34 -07:00
highmem.c
mm: in_irq() cleanup
2021-09-08 11:50:24 -07:00
hmm.c
mm/hmm: bypass devmap pte when all pfn requested flags are fulfilled
2021-09-08 18:45:52 -07:00
huge_memory.c
mm: filemap: check if THP has hwpoisoned subpage for PMD page fault
2021-10-28 17:18:55 -07:00
hugetlb_cgroup.c
hugetlb: make free_huge_page irq safe
2021-05-05 11:27:22 -07:00
hugetlb_vmemmap.c
mm: hugetlb: introduce CONFIG_HUGETLB_PAGE_FREE_VMEMMAP_DEFAULT_ON
2021-06-30 20:47:26 -07:00
hugetlb_vmemmap.h
mm: hugetlb: introduce nr_free_vmemmap_pages in the struct hstate
2021-06-30 20:47:25 -07:00
hugetlb.c
mm/hugetlb: add support for mempolicy MPOL_PREFERRED_MANY
2021-09-03 09:58:17 -07:00
hwpoison-inject.c
mm: hwpoison: don't drop slab caches for offlining non-LRU page
2021-09-03 09:58:15 -07:00
init-mm.c
mm: add setup_initial_init_mm() helper
2021-07-08 11:48:21 -07:00
internal.h
mm: introduce pmd_install() helper
2021-11-06 13:30:36 -07:00
interval_tree.c
mm/interval_tree: add comments to improve code readability
2021-04-30 11:20:38 -07:00
io-mapping.c
mm: add a io_mapping_map_user helper
2021-04-30 11:20:39 -07:00
ioremap.c
mm: move ioremap_page_range to vmalloc.c
2021-09-08 11:50:24 -07:00
Kconfig
mm: disable NUMA_BALANCING_DEFAULT_ENABLED and TRANSPARENT_HUGEPAGE on PREEMPT_RT
2021-11-06 13:30:33 -07:00
Kconfig.debug
mm, page_poison: remove CONFIG_PAGE_POISONING_ZERO
2020-12-15 12:13:46 -08:00
khugepaged.c
mm: khugepaged: skip huge page collapse for special files
2021-10-28 17:18:55 -07:00
kmemleak.c
mm/kmemleak: allow __GFP_NOLOCKDEP passed to kmemleak's gfp
2021-09-08 18:45:53 -07:00
ksm.c
mm/ksm: remove old GCC 4.9+ check
2021-09-13 10:18:28 -07:00
list_lru.c
mm: list_lru: only add memcg-aware lrus to the global lru list
2021-11-06 13:30:35 -07:00
maccess.c
ARM: 9115/1: mm/maccess: fix unaligned copy_{from,to}_kernel_nofault
2021-08-20 11:39:25 +01:00
madvise.c
Merge branch 'akpm' (patches from Andrew)
2021-09-03 10:08:28 -07:00
Makefile
mm: introduce Data Access MONitor (DAMON)
2021-09-08 11:50:24 -07:00
mapping_dirty_helpers.c
mm/mapping_dirty_helpers: remove double Note in kerneldoc
2021-07-01 11:06:02 -07:00
memblock.c
memblock: exclude MEMBLOCK_NOMAP regions from kmemleak
2021-10-21 18:30:49 -10:00
memcontrol.c
memcg: prohibit unconditional exceeding the limit of dying tasks
2021-11-06 13:30:35 -07:00
memfd.c
Reimplement RLIMIT_MEMLOCK on top of ucounts
2021-04-30 14:14:02 -05:00
memory_hotplug.c
Merge branch 'akpm' (patches from Andrew)
2021-09-08 12:55:35 -07:00
memory-failure.c
mm: hwpoison: refactor refcount check handling
2021-11-06 13:30:38 -07:00
memory.c
mm: remove redundant smp_wmb()
2021-11-06 13:30:36 -07:00
mempolicy.c
mm/vmalloc: introduce alloc_pages_bulk_array_mempolicy to accelerate memory allocation
2021-11-06 13:30:37 -07:00
mempool.c
kasan: use separate (un)poison implementation for integrated init
2021-06-04 19:32:21 +01:00
memremap.c
mm/memory_hotplug: remove nid parameter from arch_remove_memory()
2021-09-08 11:50:23 -07:00
memtest.c
…
migrate.c
mm/migrate: fix CPUHP state to update node demotion order
2021-10-18 20:22:03 -10:00
mincore.c
inode: make init and permission helpers idmapped mount aware
2021-01-24 14:27:16 +01:00
mlock.c
mm: introduce memfd_secret system call to create "secret" memory areas
2021-07-08 11:48:21 -07:00
mm_init.c
include/linux/page-flags-layout.h: cleanups
2021-04-30 11:20:42 -07:00
mmap_lock.c
mm: mmap_lock: fix disabling preemption directly
2021-07-23 17:43:28 -07:00
mmap.c
mm/mmap.c: fix a data race of mm->total_vm
2021-11-06 13:30:35 -07:00
mmu_gather.c
mm: eliminate "expecting prototype" kernel-doc warnings
2021-04-16 16:10:36 -07:00
mmu_notifier.c
mm/mmu_notifiers: ensure range_end() is paired with range_start()
2021-03-25 09:22:55 -07:00
mmzone.c
mm/lru: replace pgdat lru_lock with lruvec lock
2020-12-15 14:48:04 -08:00
mprotect.c
mm/mprotect.c: avoid repeated assignment in do_mprotect_pkey()
2021-11-06 13:30:36 -07:00
mremap.c
mm/mremap: don't account pages in vma_to_resize()
2021-11-06 13:30:36 -07:00
msync.c
mm/msync: exit early when the flags is an MS_ASYNC and start < vm_start
2021-04-30 11:20:37 -07:00
nommu.c
Merge tag 'denywrite-for-5.15' of git://github.com/davidhildenbrand/linux
2021-09-04 11:35:47 -07:00
oom_kill.c
mm, oom: do not trigger out_of_memory from the #PF
2021-11-06 13:30:35 -07:00
page_alloc.c
mm/page_alloc: use clamp() to simplify code
2021-11-06 13:30:38 -07:00
page_counter.c
mm: page_counter: mitigate consequences of a page_counter underflow
2021-04-30 11:20:38 -07:00
page_ext.c
mm/page_ext.c: fix a comment
2021-11-06 13:30:34 -07:00
page_idle.c
mm/idle_page_tracking: make PG_idle reusable
2021-09-08 11:50:24 -07:00
page_io.c
swap: fix swapfile read/write offset
2021-03-02 17:25:46 -07:00
page_isolation.c
Merge branch 'akpm' (patches from Andrew)
2021-09-08 12:55:35 -07:00
page_owner.c
mm: remove pfn_valid_within() and CONFIG_HOLES_IN_ZONE
2021-09-08 11:50:22 -07:00
page_poison.c
mm: page_poison: print page info when corruption is caught
2021-04-30 11:20:36 -07:00
page_reporting.c
mm/page_reporting: allow driver to specify reporting order
2021-06-29 10:53:47 -07:00
page_reporting.h
mm/page_reporting: export reporting order as module parameter
2021-06-29 10:53:47 -07:00
page_vma_mapped.c
mm: device exclusive memory access
2021-07-01 11:06:03 -07:00
page-writeback.c
Merge branch 'akpm' (patches from Andrew)
2021-09-03 10:08:28 -07:00
pagewalk.c
mm: pagewalk: fix walk for hugepage tables
2021-06-29 10:53:49 -07:00
percpu-internal.h
Merge branch 'for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu
2021-07-01 17:17:24 -07:00
percpu-km.c
percpu: flush tlb in pcpu_reclaim_populated()
2021-07-04 18:30:17 +00:00
percpu-stats.c
percpu: rework memcg accounting
2021-06-05 20:43:15 +00:00
percpu-vm.c
percpu: flush tlb in pcpu_reclaim_populated()
2021-07-04 18:30:17 +00:00
percpu.c
Merge branch 'akpm' (patches from Andrew)
2021-09-08 12:55:35 -07:00
pgalloc-track.h
mm: fix typos in comments
2021-05-07 00:26:35 -07:00
pgtable-generic.c
mm/thp: fix __split_huge_pmd_locked() on shmem migration entry
2021-06-16 09:24:42 -07:00
process_vm_access.c
mm/process_vm_access.c: remove duplicate include
2021-05-05 11:27:27 -07:00
ptdump.c
mm: ptdump: fix build failure
2021-04-16 16:10:37 -07:00
readahead.c
mm: Protect operations adding pages to page cache with invalidate_lock
2021-07-13 13:14:27 +02:00
rmap.c
Merge branch 'akpm' (patches from Andrew)
2021-09-08 12:55:35 -07:00
rodata_test.c
…
secretmem.c
mm/secretmem: avoid letting secretmem_users drop to zero
2021-10-28 17:18:55 -07:00
shmem.c
mm/shmem: unconditionally set pte dirty in mfill_atomic_install_pte
2021-11-06 13:30:36 -07:00
shuffle.c
mm: eliminate "expecting prototype" kernel-doc warnings
2021-04-16 16:10:36 -07:00
shuffle.h
mm/shuffle: fix section mismatch warning
2021-05-22 15:09:07 -10:00
slab_common.c
mm: slub: move flush_cpu_slab() invocations __free_slab() invocations out of IRQ context
2021-09-04 01:12:23 +02:00
slab.c
mm/slab.c: remove useless lines in enable_cpucache()
2021-11-06 13:30:32 -07:00
slab.h
mm/memcg: fix NULL pointer dereference in memcg_slab_free_hook()
2021-07-30 10:14:39 -07:00
slob.c
mm: Don't build mm_dump_obj() on CONFIG_PRINTK=n kernels
2021-03-08 14:18:46 -08:00
slub.c
mm, slub: use prefetchw instead of prefetch
2021-11-06 13:30:33 -07:00
sparse-vmemmap.c
mm: remove redundant smp_wmb()
2021-11-06 13:30:36 -07:00
sparse.c
mm: introduce memmap_alloc() to unify memory map allocation
2021-09-03 09:58:15 -07:00
swap_cgroup.c
…
swap_slots.c
mm: Replace deprecated CPU-hotplug functions.
2021-08-28 01:46:17 +02:00
swap_state.c
Revert "mm: swap: check if swap backing device is congested or not"
2021-08-20 11:31:42 -07:00
swap.c
mm: optimise put_pages_list()
2021-11-06 13:30:35 -07:00
swapfile.c
mm/swapfile: fix an integer overflow in swap_show()
2021-11-06 13:30:35 -07:00
truncate.c
Merge branch 'akpm' (patches from Andrew)
2021-09-03 10:08:28 -07:00
usercopy.c
…
userfaultfd.c
mm/shmem: unconditionally set pte dirty in mfill_atomic_install_pte
2021-11-06 13:30:36 -07:00
util.c
mm: fix uninitialized use in overcommit_policy_handler
2021-09-24 16:13:35 -07:00
vmacache.c
…
vmalloc.c
mm/vmalloc: introduce alloc_pages_bulk_array_mempolicy to accelerate memory allocation
2021-11-06 13:30:37 -07:00
vmpressure.c
mm/vmpressure: replace vmpressure_to_css() with vmpressure_to_memcg()
2021-09-03 09:58:17 -07:00
vmscan.c
mm,vmscan: fix divide by zero in get_scan_count
2021-09-08 18:45:53 -07:00
vmstat.c
mm/page_alloc.c: show watermark_boost of zone in zoneinfo
2021-11-06 13:30:38 -07:00
workingset.c
memcg: flush lruvec stats in the refault
2021-09-23 10:09:13 -07:00
z3fold.c
mm/z3fold: add kerneldoc fields for z3fold_pool
2021-07-01 11:06:03 -07:00
zbud.c
mm/zbud: add kerneldoc fields for zbud_pool
2021-07-01 11:06:03 -07:00
zpool.c
mm: fix typos in comments
2021-05-07 00:26:35 -07:00
zsmalloc.c
mm/zsmalloc.c: improve readability for async_free_zspage()
2021-07-01 11:06:02 -07:00
zswap.c
mm/zswap.c: fix two bugs in zswap_writeback_entry()
2021-06-30 20:47:31 -07:00