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Matthew Wilcox (Oracle) 5eaf35ab12 mm/rmap: fix assumptions of THP size 
Ask the page what size it is instead of assuming it's PMD size.  Do this
for anon pages as well as file pages for when someone decides to support
that.  Leave the assumption alone for pages which are PMD mapped; we don't
currently grow THPs beyond PMD size, so we don't need to change this code
yet.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: SeongJae Park <sjpark@amazon.de>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Huang Ying <ying.huang@intel.com>
Link: https://lkml.kernel.org/r/20200908195539.25896-9-willy@infradead.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-16 11:11:15 -07:00
..
kasan
mm: kasan: do not panic if both panic_on_warn and kasan_multishot set
2020-10-13 18:38:32 -07:00
backing-dev.c
bdi: replace BDI_CAP_NO_{WRITEBACK,ACCT_DIRTY} with a single flag
2020-09-24 13:43:39 -06:00
balloon_compaction.c
…
cleancache.c
…
cma_debug.c
debugfs: make sure we can remove u32_array files cleanly
2020-07-10 13:54:00 -07:00
cma.c
cma: don't quit at first error when activating reserved areas
2020-08-12 10:57:57 -07:00
cma.h
mm: cma: use CMA_MAX_NAME to define the length of cma name array
2020-09-01 09:19:43 +02:00
compaction.c
mm/compaction.c: micro-optimization remove unnecessary branch
2020-10-13 18:38:34 -07:00
debug_page_ref.c
…
debug_vm_pgtable.c
mm/debug_vm_pgtable: avoid doing memory allocation with pgtable_t mapped.
2020-10-16 11:11:14 -07:00
debug.c
mm, dump_page: rename head_mapcount() --> head_compound_mapcount()
2020-10-13 18:38:29 -07:00
dmapool.c
mm/dmapool.c: replace hard coded function name with __func__
2020-10-13 18:38:32 -07:00
early_ioremap.c
…
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: fix page cache removal for arbitrary sized THPs
2020-10-16 11:11:15 -07:00
frame_vector.c
mmap locking API: convert mmap_sem comments
2020-06-09 09:39:14 -07:00
frontswap.c
mm/frontswap: mark various intentional data races
2020-08-14 19:56:56 -07:00
gup_benchmark.c
mm/gup_benchmark: use pin_user_pages for FOLL_LONGTERM flag
2020-10-13 18:38:29 -07:00
gup.c
mm/gup: protect unpin_user_pages() against npages==-ERRNO
2020-10-13 18:38:29 -07:00
highmem.c
…
hmm.c
mm: do page fault accounting in handle_mm_fault
2020-08-12 10:58:02 -07:00
huge_memory.c
mm/huge_memory: fix can_split_huge_page assumption of THP size
2020-10-16 11:11:15 -07:00
hugetlb_cgroup.c
hugetlb_cgroup: convert comma to semicolon
2020-08-21 09:52:52 -07:00
hugetlb.c
dma-mapping updates for 5.10
2020-10-15 14:43:29 -07:00
hwpoison-inject.c
…
init-mm.c
mmap locking API: add MMAP_LOCK_INITIALIZER
2020-06-09 09:39:14 -07:00
internal.h
i915: use find_lock_page instead of find_lock_entry
2020-10-13 18:38:29 -07:00
interval_tree.c
…
ioremap.c
mm: move p?d_alloc_track to separate header file
2020-08-07 11:33:26 -07:00
Kconfig
dma-mapping updates for 5.10
2020-10-15 14:43:29 -07:00
Kconfig.debug
treewide: replace '---help---' in Kconfig files with 'help'
2020-06-14 01:57:21 +09:00
khugepaged.c
mm: khugepaged: recalculate min_free_kbytes after memory hotplug as expected by khugepaged
2020-10-11 10:31:11 -07:00
kmemleak.c
mm/kmemleak: rely on rcu for task stack scanning
2020-10-13 18:38:27 -07:00
ksm.c
ksm: reinstate memcg charge on copied pages
2020-09-19 13:13:38 -07:00
list_lru.c
mm/list_lru: fix a data race in list_lru_count_one
2020-08-14 19:56:57 -07:00
maccess.c
uaccess: add force_uaccess_{begin,end} helpers
2020-08-12 10:57:59 -07:00
madvise.c
mm: optimise madvise WILLNEED
2020-10-13 18:38:29 -07:00
Makefile
mm,kmemleak-test.c: move kmemleak-test.c to samples dir
2020-10-13 18:38:27 -07:00
mapping_dirty_helpers.c
…
memblock.c
memblock: use separate iterators for memory and reserved regions
2020-10-13 18:38:35 -07:00
memcontrol.c
mm/memcg: fix device private memcg accounting
2020-10-13 18:38:31 -07:00
memfd.c
…
memory_hotplug.c
mm/memory_hotplug: introduce default phys_to_target_node() implementation
2020-10-13 18:38:27 -07:00
memory-failure.c
mm/memory-failure.c: remove unused macro `writeback'
2020-10-13 18:38:32 -07:00
memory.c
mm/memory: remove page fault assumption of compound page size
2020-10-16 11:11:15 -07:00
mempolicy.c
mm: remove unused alloc_page_vma_node()
2020-10-13 18:38:34 -07:00
mempool.c
mm/mempool: add 'else' to split mutually exclusive case
2020-10-13 18:38:34 -07:00
memremap.c
mm/memremap.c: convert devmap static branch to {inc,dec}
2020-10-13 18:38:30 -07:00
memtest.c
…
migrate.c
mm/migrate: remove obsolete comment about device public
2020-10-13 18:38:36 -07:00
mincore.c
mm: factor find_get_incore_page out of mincore_page
2020-10-13 18:38:29 -07:00
mlock.c
mlock: fix unevictable_pgs event counts on THP
2020-09-19 13:13:38 -07:00
mm_init.c
mm: adjust vm_committed_as_batch according to vm overcommit policy
2020-08-07 11:33:26 -07:00
mmap.c
mm/mmap.c: replace do_brk with do_brk_flags in comment of insert_vm_struct()
2020-10-13 18:38:32 -07:00
mmu_gather.c
mmap locking API: convert mmap_sem comments
2020-06-09 09:39:14 -07:00
mmu_notifier.c
mm: mmu_notifier: fix and extend kerneldoc
2020-08-12 10:57:57 -07:00
mmzone.c
…
mprotect.c
mm: Introduce arch_validate_flags()
2020-09-04 12:46:07 +01:00
mremap.c
mm/mremap: start addresses are properly aligned
2020-08-07 11:33:27 -07:00
msync.c
mmap locking API: use coccinelle to convert mmap_sem rwsem call sites
2020-06-09 09:39:14 -07:00
nommu.c
Fix references to nommu-mmap.rst
2020-09-24 11:03:40 -06:00
oom_kill.c
mm, oom_adj: don't loop through tasks in __set_oom_adj when not necessary
2020-10-13 18:38:35 -07:00
page_alloc.c
mm/page_owner: change split_page_owner to take a count
2020-10-16 11:11:15 -07:00
page_counter.c
mm/page_counter: correct the obsolete func name in the comment of page_counter_try_charge()
2020-10-13 18:38:30 -07:00
page_ext.c
…
page_idle.c
mm/page_idle.c: skip offline pages
2020-06-08 11:05:55 -07:00
page_io.c
mm/page_io.c: remove useless out label in __swap_writepage()
2020-10-13 18:38:30 -07:00
page_isolation.c
mm/page_isolation: cleanup set_migratetype_isolate()
2020-10-13 18:38:33 -07:00
page_owner.c
mm/page_owner: change split_page_owner to take a count
2020-10-16 11:11:15 -07:00
page_poison.c
…
page_reporting.c
…
page_reporting.h
mm: introduce include/linux/pgtable.h
2020-06-09 09:39:13 -07:00
page_vma_mapped.c
mm: replace hpage_nr_pages with thp_nr_pages
2020-08-14 19:56:56 -07:00
page-writeback.c
bdi: replace BDI_CAP_NO_{WRITEBACK,ACCT_DIRTY} with a single flag
2020-09-24 13:43:39 -06:00
pagewalk.c
mmap locking API: convert mmap_sem comments
2020-06-09 09:39:14 -07:00
percpu-internal.h
mm: memcg/percpu: account percpu memory to memory cgroups
2020-08-12 10:57:55 -07:00
percpu-km.c
mm: memcg/percpu: account percpu memory to memory cgroups
2020-08-12 10:57:55 -07:00
percpu-stats.c
mm: memcg/percpu: account percpu memory to memory cgroups
2020-08-12 10:57:55 -07:00
percpu-vm.c
mm: memcg/percpu: account percpu memory to memory cgroups
2020-08-12 10:57:55 -07:00
percpu.c
percpu: fix first chunk size calculation for populated bitmap
2020-09-17 17:34:39 +00:00
pgalloc-track.h
mm: move p?d_alloc_track to separate header file
2020-08-07 11:33:26 -07:00
pgtable-generic.c
mm: introduce include/linux/pgtable.h
2020-06-09 09:39:13 -07:00
process_vm_access.c
mm: remove compat_process_vm_{readv,writev}
2020-10-03 00:02:15 -04:00
ptdump.c
mmap locking API: use coccinelle to convert mmap_sem rwsem call sites
2020-06-09 09:39:14 -07:00
readahead.c
mm: use memalloc_nofs_save in readahead path
2020-06-02 10:59:07 -07:00
rmap.c
mm/rmap: fix assumptions of THP size
2020-10-16 11:11:15 -07:00
rodata_test.c
mm/rodata_test.c: fix missing function declaration
2020-08-21 09:52:53 -07:00
shmem.c
mm/shmem: return head page from find_lock_entry
2020-10-13 18:38:29 -07:00
shuffle.c
mm/shuffle: remove dynamic reconfiguration
2020-08-07 11:33:29 -07:00
shuffle.h
mm/shuffle: remove dynamic reconfiguration
2020-08-07 11:33:29 -07:00
slab_common.c
mm/slab_common.c: delete duplicated word
2020-08-12 10:57:58 -07:00
slab.c
mm: memcg/slab: uncharge during kmem_cache_free_bulk()
2020-10-13 18:38:31 -07:00
slab.h
mm: memcg/slab: uncharge during kmem_cache_free_bulk()
2020-10-13 18:38:31 -07:00
slob.c
mm: memcg: convert vmstat slab counters to bytes
2020-08-07 11:33:24 -07:00
slub.c
mm: memcg/slab: uncharge during kmem_cache_free_bulk()
2020-10-13 18:38:31 -07:00
sparse-vmemmap.c
mm/sparse: only sub-section aligned range would be populated
2020-08-07 11:33:27 -07:00
sparse.c
arch, mm: replace for_each_memblock() with for_each_mem_pfn_range()
2020-10-13 18:38:35 -07:00
swap_cgroup.c
mm: memcontrol: make swap tracking an integral part of memory control
2020-06-03 20:09:48 -07:00
swap_slots.c
mm/swap_slots.c: remove always zero and unused return value of enable_swap_slots_cache()
2020-10-13 18:38:30 -07:00
swap_state.c
swap: rename SWP_FS to SWAP_FS_OPS to avoid ambiguity
2020-10-13 18:38:29 -07:00
swap.c
mm: move call to compound_head() in release_pages()
2020-10-13 18:38:33 -07:00
swapfile.c
mm/swapfile.c: fix potential memory leak in sys_swapon
2020-10-13 18:38:30 -07:00
truncate.c
mm, fadvise: improve the expensive remote LRU cache draining after FADV_DONTNEED
2020-10-13 18:38:29 -07:00
usercopy.c
mm/usercopy.c: delete duplicated word
2020-08-12 10:57:58 -07:00
userfaultfd.c
mm/vmscan: protect the workingset on anonymous LRU
2020-08-12 10:57:55 -07:00
util.c
arm64: mte: Tags-aware aware memcmp_pages() implementation
2020-09-04 12:46:07 +01:00
vmacache.c
kernel: better document the use_mm/unuse_mm API contract
2020-06-10 19:14:18 -07:00
vmalloc.c
mm/vmalloc.c: fix the comment of find_vm_area
2020-10-13 18:38:32 -07:00
vmpressure.c
…
vmscan.c
mm/vmscan: fix comments for isolate_lru_page()
2020-10-13 18:38:34 -07:00
vmstat.c
Merge branch 'simplify-do_wp_page'
2020-09-04 09:31:54 -07:00
workingset.c
mm: replace hpage_nr_pages with thp_nr_pages
2020-08-14 19:56:56 -07:00
z3fold.c
mm/z3fold.c: use xx_zalloc instead xx_alloc and memset
2020-10-13 18:38:34 -07:00
zbud.c
mm/zbud: remove redundant initialization
2020-10-13 18:38:34 -07:00
zpool.c
mm/zpool.c: delete duplicated word and fix grammar
2020-08-12 10:57:58 -07:00
zsmalloc.c
mm/zsmalloc.c: fix duplicated words
2020-08-12 10:57:58 -07:00
zswap.c
mm/zswap: allow setting default status, compressor and allocator in Kconfig
2020-04-07 10:43:41 -07:00