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Kirill A. Shutemov ef18a1ca84 mm/thp: allow dropping THP from page cache 
Once a THP is added to the page cache, it cannot be dropped via
/proc/sys/vm/drop_caches.  Fix this issue with proper handling in
invalidate_mapping_pages().

Link: http://lkml.kernel.org/r/20191017164223.2762148-5-songliubraving@fb.com
Fixes: 99cb0dbd47 ("mm,thp: add read-only THP support for (non-shmem) FS")
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
Tested-by: Song Liu <songliubraving@fb.com>
Acked-by: Yang Shi <yang.shi@linux.alibaba.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: William Kucharski <william.kucharski@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-10-19 06:32:33 -04:00
..
kasan
mm: introduce compound_nr()
2019-09-24 15:54:08 -07:00
backing-dev.c
bdi: Do not use freezable workqueue
2019-10-06 09:11:35 -06:00
balloon_compaction.c
mm/balloon_compaction: suppress allocation warnings
2019-09-04 07:42:01 -04:00
cleancache.c
…
cma_debug.c
…
cma.c
…
cma.h
…
compaction.c
mm, compaction: fix wrong pfn handling in __reset_isolation_pfn()
2019-10-14 15:04:01 -07:00
debug_page_ref.c
…
debug.c
…
dmapool.c
…
early_ioremap.c
…
fadvise.c
fs: Export generic_fadvise()
2019-08-30 22:43:58 -07:00
failslab.c
…
filemap.c
mm/filemap.c: include <linux/ramfs.h> for generic_file_vm_ops definition
2019-10-19 06:32:32 -04:00
frame_vector.c
mm: untag user pointers in get_vaddr_frames
2019-09-25 17:51:41 -07:00
frontswap.c
…
gup_benchmark.c
…
gup.c
mm/gup: fix a misnamed "write" argument, and a related bug
2019-10-19 06:32:32 -04:00
highmem.c
…
hmm.c
pagewalk: separate function pointers from iterator data
2019-09-07 04:28:04 -03:00
huge_memory.c
mm/thp: fix node page state in split_huge_page_to_list()
2019-10-19 06:32:32 -04:00
hugetlb_cgroup.c
mm: introduce compound_nr()
2019-09-24 15:54:08 -07:00
hugetlb.c
hugetlbfs: don't access uninitialized memmaps in pfn_range_valid_gigantic()
2019-10-19 06:32:32 -04:00
hwpoison-inject.c
…
init-mm.c
mm/init-mm.c: include <linux/mman.h> for vm_committed_as_batch
2019-10-19 06:32:32 -04:00
internal.h
mm: introduce MADV_COLD
2019-09-25 17:51:41 -07:00
interval_tree.c
…
Kconfig
mm,thp: add read-only THP support for (non-shmem) FS
2019-09-24 15:54:11 -07:00
Kconfig.debug
mm, page_owner, debug_pagealloc: save and dump freeing stack trace
2019-09-24 15:54:08 -07:00
khugepaged.c
khugepaged: enable collapse pmd for pte-mapped THP
2019-09-24 15:54:11 -07:00
kmemleak-test.c
…
kmemleak.c
kmemleak: Do not corrupt the object_list during clean-up
2019-10-14 08:56:16 -07:00
ksm.c
mm: move memcmp_pages() and pages_identical()
2019-09-24 15:54:11 -07:00
list_lru.c
…
maccess.c
…
madvise.c
mm: factor out common parts between MADV_COLD and MADV_PAGEOUT
2019-09-25 17:51:41 -07:00
Makefile
mm: silence -Woverride-init/initializer-overrides
2019-09-24 15:54:10 -07:00
memblock.c
mm: memblock: do not enforce current limit for memblock_phys* family
2019-10-19 06:32:32 -04:00
memcontrol.c
mm/memcontrol: update lruvec counters in mem_cgroup_move_account
2019-10-19 06:32:32 -04:00
memfd.c
mm: page cache: store only head pages in i_pages
2019-09-24 15:54:08 -07:00
memory_hotplug.c
mm/memory_hotplug: don't access uninitialized memmaps in shrink_pgdat_span()
2019-10-19 06:32:31 -04:00
memory-failure.c
mm/memory-failure.c: don't access uninitialized memmaps in memory_failure()
2019-10-19 06:32:31 -04:00
memory.c
mm: do not hash address in print_bad_pte()
2019-09-24 15:54:09 -07:00
mempolicy.c
Merge branch 'hugepage-fallbacks' (hugepatch patches from David Rientjes)
2019-09-28 14:26:47 -07:00
mempool.c
…
memremap.c
mm/memunmap: don't access uninitialized memmap in memunmap_pages()
2019-10-19 06:32:32 -04:00
memtest.c
…
migrate.c
mm: untag user pointers passed to memory syscalls
2019-09-25 17:51:41 -07:00
mincore.c
mm: untag user pointers passed to memory syscalls
2019-09-25 17:51:41 -07:00
mlock.c
mm: untag user pointers passed to memory syscalls
2019-09-25 17:51:41 -07:00
mm_init.c
…
mmap.c
mm: untag user pointers in mmap/munmap/mremap/brk
2019-09-25 17:51:41 -07:00
mmu_context.c
…
mmu_gather.c
mm: remove quicklist page table caches
2019-09-24 15:54:09 -07:00
mmu_notifier.c
mm, notifier: Catch sleeping/blocking for !blockable
2019-09-07 04:28:05 -03:00
mmzone.c
…
mprotect.c
mm: untag user pointers passed to memory syscalls
2019-09-25 17:51:41 -07:00
mremap.c
mm: untag user pointers in mmap/munmap/mremap/brk
2019-09-25 17:51:41 -07:00
msync.c
mm: untag user pointers passed to memory syscalls
2019-09-25 17:51:41 -07:00
nommu.c
mm: introduce page_size()
2019-09-24 15:54:08 -07:00
oom_kill.c
mm: introduce MADV_COLD
2019-09-25 17:51:41 -07:00
page_alloc.c
mm, hugetlb: allow hugepage allocations to reclaim as needed
2019-10-14 15:04:01 -07:00
page_counter.c
…
page_ext.c
mm, page_owner: fix off-by-one error in __set_page_owner_handle()
2019-10-14 15:04:00 -07:00
page_idle.c
…
page_io.c
…
page_isolation.c
…
page_owner.c
mm/page_owner: don't access uninitialized memmaps when reading /proc/pagetypeinfo
2019-10-19 06:32:31 -04:00
page_poison.c
mm/page_poison.c: fix a typo in a comment
2019-09-24 15:54:08 -07:00
page_vma_mapped.c
mm: introduce page_size()
2019-09-24 15:54:08 -07:00
page-writeback.c
writeback, memcg: Implement foreign dirty flushing
2019-08-27 09:22:38 -06:00
pagewalk.c
pagewalk: use lockdep_assert_held for locking validation
2019-09-07 04:28:04 -03:00
percpu-internal.h
…
percpu-km.c
…
percpu-stats.c
…
percpu-vm.c
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percpu.c
percpu: Use struct_size() helper
2019-09-04 13:40:49 -07:00
pgtable-generic.c
…
process_vm_access.c
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readahead.c
…
rmap.c
mm: include <linux/huge_mm.h> for is_vma_temporary_stack
2019-10-19 06:32:32 -04:00
rodata_test.c
…
shmem.c
Merge branch 'work.mount3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-10-10 08:16:44 -07:00
shuffle.c
mm: fix -Wmissing-prototypes warnings
2019-10-07 15:47:19 -07:00
shuffle.h
…
slab_common.c
mm: memcg/slab: fix panic in __free_slab() caused by premature memcg pointer release
2019-10-19 06:32:32 -04:00
slab.c
mm/slab.c: fix kernel-doc warning for __ksize()
2019-10-14 15:04:01 -07:00
slab.h
mm, slab: move memcg_cache_params structure to mm/slab.h
2019-09-24 15:54:07 -07:00
slob.c
mm, sl[aou]b: guarantee natural alignment for kmalloc(power-of-two)
2019-10-07 15:47:20 -07:00
slub.c
mm/slub.c: init_on_free=1 should wipe freelist ptr for bulk allocations
2019-10-14 15:04:01 -07:00
sparse-vmemmap.c
mm/sparsemem: convert kmalloc_section_memmap() to populate_section_memmap()
2019-07-18 17:08:07 -07:00
sparse.c
mm: fix -Wmissing-prototypes warnings
2019-10-07 15:47:19 -07:00
swap_cgroup.c
…
swap_slots.c
…
swap_state.c
mm: page cache: store only head pages in i_pages
2019-09-24 15:54:08 -07:00
swap.c
mm: introduce MADV_COLD
2019-09-25 17:51:41 -07:00
swapfile.c
vfs: don't allow writes to swap files
2019-08-20 07:55:16 -07:00
truncate.c
mm/thp: allow dropping THP from page cache
2019-10-19 06:32:33 -04:00
usercopy.c
usercopy: Avoid HIGHMEM pfn warning
2019-09-17 15:20:17 -07:00
userfaultfd.c
…
util.c
arm64, mm: make randomization selected by generic topdown mmap layout
2019-09-24 15:54:11 -07:00
vmacache.c
…
vmalloc.c
augmented rbtree: add new RB_DECLARE_CALLBACKS_MAX macro
2019-09-25 17:51:39 -07:00
vmpressure.c
mm/vmpressure.c: fix a signedness bug in vmpressure_register_event()
2019-10-07 15:47:19 -07:00
vmscan.c
mm/vmscan.c: support removing arbitrary sized pages from mapping
2019-10-19 06:32:32 -04:00
vmstat.c
mm,thp: stats for file backed THP
2019-09-24 15:54:11 -07:00
workingset.c
mm: workingset: fix vmstat counters for shadow nodes
2019-08-13 16:06:52 -07:00
z3fold.c
mm/z3fold.c: claim page in the beginning of free
2019-10-07 15:47:19 -07:00
zbud.c
…
zpool.c
zpool: add malloc_support_movable to zpool_driver
2019-09-24 15:54:12 -07:00
zsmalloc.c
mm/zsmalloc.c: fix a -Wunused-function warning
2019-09-24 15:54:12 -07:00
zswap.c
zswap: do not map same object twice
2019-09-24 15:54:12 -07:00