Yang Shi 5ade3c9618 mm: thp: fix potential clearing to referenced flag in page_idle_clear_pte_refs_one() ... [ Upstream commit f0849ac0b8 ] For PTE-mapped THP, the compound THP has not been split to normal 4K pages yet, the whole THP is considered referenced if any one of sub page is referenced. When walking PTE-mapped THP by pvmw, all relevant PTEs will be checked to retrieve referenced bit. But, the current code just returns the result of the last PTE. If the last PTE has not referenced, the referenced flag will be cleared. Just set referenced when ptep{pmdp}_clear_young_notify() returns true. Link: http://lkml.kernel.org/r/1518212451-87134-1-git-send-email-yang.shi@linux.alibaba.com Signed-off-by: Yang Shi <yang.shi@linux.alibaba.com> Reported-by: Gang Deng <gavin.dg@linux.alibaba.com> Suggested-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-05-30 07:52:24 +02:00
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kasan	kasan: fix memory hotplug during boot	2018-05-30 07:51:50 +02:00
Kconfig	mm: don't allow deferred pages with NEED_PER_CPU_KM	2018-05-22 18:53:58 +02:00
Kconfig.debug	kmemcheck: rip it out	2018-02-22 15:42:24 +01:00
Makefile	kmemcheck: rip it out	2018-02-22 15:42:24 +01:00
backing-dev.c	bdi: wake up concurrent wb_shutdown() callers.	2018-05-16 10:10:25 +02:00
balloon_compaction.c	…
bootmem.c	…
cleancache.c	…
cma.c	…
cma.h	…
cma_debug.c	…
compaction.c	…
debug.c	…
debug_page_ref.c	…
dmapool.c	…
early_ioremap.c	mm/early_ioremap: Fix boot hang with earlyprintk=efi,keep	2018-02-25 11:08:03 +01:00
fadvise.c	mm/fadvise: discard partial page if endbyte is also EOF	2018-04-26 11:02:15 +02:00
failslab.c	…
filemap.c	mm/filemap.c: fix NULL pointer in page_cache_tree_insert()	2018-04-24 09:36:39 +02:00
frame_vector.c	mm/frame_vector.c: release a semaphore in 'get_vaddr_frames()'	2018-03-03 10:24:21 +01:00
frontswap.c	…
gup.c	proc: do not access cmdline nor environ from file-backed areas	2018-05-19 10:20:27 +02:00
highmem.c	…
hmm.c	mm/hmm: hmm_pfns_bad() was accessing wrong struct	2018-04-24 09:36:22 +02:00
huge_memory.c	mm, thp: do not cause memcg oom for thp	2018-05-30 07:52:19 +02:00
hugetlb.c	hugetlbfs: check for pgoff value overflow	2018-03-28 18:24:38 +02:00
hugetlb_cgroup.c	…
hwpoison-inject.c	…
init-mm.c	…
internal.h	…
interval_tree.c	…
khugepaged.c	mm, thp: do not cause memcg oom for thp	2018-05-30 07:52:19 +02:00
kmemleak-test.c	…
kmemleak.c	mm/kmemleak.c: wait for scan completion before disabling free	2018-05-30 07:52:21 +02:00
ksm.c	mm/ksm: fix interaction with THP	2018-05-30 07:52:24 +02:00
list_lru.c	…
maccess.c	…
madvise.c	…
memblock.c	Revert "mm: page_alloc: skip over regions of invalid pfns where possible"	2018-03-28 18:24:39 +02:00
memcontrol.c	memcg: fix per_node_info cleanup	2018-05-16 10:10:24 +02:00
memory-failure.c	x86/mm, mm/hwpoison: Don't unconditionally unmap kernel 1:1 pages	2018-02-22 15:42:31 +01:00
memory.c	mm: hide a #warning for COMPILE_TEST	2018-02-22 15:42:27 +01:00
memory_hotplug.c	…
mempolicy.c	mm/mempolicy.c: avoid use uninitialized preferred_node	2018-05-30 07:52:19 +02:00
mempool.c	…
memtest.c	…
migrate.c	…
mincore.c	…
mlock.c	…
mm_init.c	…
mmap.c	mm, oom: fix concurrent munlock and oom reaper unmap, v3	2018-05-16 10:10:27 +02:00
mmu_context.c	…
mmu_notifier.c	…
mmzone.c	…
mprotect.c	…
mremap.c	…
msync.c	…
nobootmem.c	…
nommu.c	…
oom_kill.c	mm, oom: fix concurrent munlock and oom reaper unmap, v3	2018-05-16 10:10:27 +02:00
page-writeback.c	writeback: safer lock nesting	2018-04-24 09:36:39 +02:00
page_alloc.c	Revert "mm: page_alloc: skip over regions of invalid pfns where possible"	2018-03-28 18:24:39 +02:00
page_counter.c	…
page_ext.c	…
page_idle.c	mm: thp: fix potential clearing to referenced flag in page_idle_clear_pte_refs_one()	2018-05-30 07:52:24 +02:00
page_io.c	…
page_isolation.c	…
page_owner.c	mm/page_owner: fix recursion bug after changing skip entries	2018-05-30 07:52:21 +02:00
page_poison.c	…
page_vma_mapped.c	…
pagewalk.c	…
percpu-internal.h	…
percpu-km.c	percpu: add __GFP_NORETRY semantics to the percpu balancing path	2018-04-08 14:26:29 +02:00
percpu-stats.c	…
percpu-vm.c	percpu: add __GFP_NORETRY semantics to the percpu balancing path	2018-04-08 14:26:29 +02:00
percpu.c	percpu: include linux/sched.h for cond_resched()	2018-05-09 09:51:48 +02:00
pgtable-generic.c	…
process_vm_access.c	…
quicklist.c	…
readahead.c	…
rmap.c	…
rodata_test.c	…
shmem.c	mm/shmem: do not wait for lock_page() in shmem_unused_huge_shrink()	2018-03-28 18:24:39 +02:00
slab.c	mm, slab: memcg_link the SLAB's kmem_cache	2018-05-30 07:52:21 +02:00
slab.h	kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK	2018-02-22 15:42:23 +01:00
slab_common.c	kmemcheck: stop using GFP_NOTRACK and SLAB_NOTRACK	2018-02-22 15:42:23 +01:00
slob.c	…
slub.c	kmemcheck: rip it out	2018-02-22 15:42:24 +01:00
sparse-vmemmap.c	…
sparse.c	mm: sections are not offlined during memory hotremove	2018-05-16 10:10:27 +02:00
swap.c	…
swap_cgroup.c	…
swap_slots.c	…
swap_state.c	…
swapfile.c	swap: divide-by-zero when zero length swap file on ssd	2018-05-30 07:52:23 +02:00
truncate.c	…
usercopy.c	…
userfaultfd.c	…
util.c	…
vmacache.c	…
vmalloc.c	vmalloc: fix __GFP_HIGHMEM usage for vmalloc_32 on 32b systems	2018-02-25 11:08:04 +01:00
vmpressure.c	…
vmscan.c	mm: fix races between address_space dereference and free in page_evicatable	2018-05-30 07:52:24 +02:00
vmstat.c	mm/vmstat.c: fix vmstat_update() preemption BUG	2018-05-30 07:52:21 +02:00
workingset.c	…
z3fold.c	z3fold: fix memory leak	2018-05-30 07:52:23 +02:00
zbud.c	…
zpool.c	…
zsmalloc.c	…
zswap.c	mm, swap, frontswap: fix THP swap if frontswap enabled	2018-02-28 10:19:41 +01:00