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Kirill A. Shutemov d965432234 thp: increase split_huge_page() success rate 
During freeze_page(), we remove the page from rmap.  It munlocks the
page if it was mlocked.  clear_page_mlock() uses thelru cache, which
temporary pins the page.

Let's drain the lru cache before checking page's count vs.  mapcount.
The change makes mlocked page split on first attempt, if it was not
pinned by somebody else.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Sasha Levin <sasha.levin@oracle.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-01-15 17:56:32 -08:00
..
kasan
kasan: fix kmemleak false-positive in kasan_module_alloc()
2015-11-20 16:17:32 -08:00
backing-dev.c
mm: memcontrol: export root_mem_cgroup
2016-01-14 16:00:49 -08:00
balloon_compaction.c
mm: page migration trylock newpage at same level as oldpage
2015-11-05 19:34:48 -08:00
bootmem.c
x86/mm: Introduce max_possible_pfn
2015-12-06 12:46:31 +01:00
cleancache.c
cleancache: remove limit on the number of cleancache enabled filesystems
2015-04-14 16:49:03 -07:00
cma_debug.c
mm/cma_debug: correct size input to bitmap function
2015-07-17 16:39:54 -07:00
cma.c
mm/cma.c: suppress warning
2015-11-05 19:34:48 -08:00
cma.h
mm: cma: mark cma_bitmap_maxno() inline in header
2015-08-14 15:56:32 -07:00
compaction.c
mm/compaction.c: __compact_pgdat() code cleanuup
2016-01-14 16:00:49 -08:00
debug-pagealloc.c
mm/debug-pagealloc: make debug-pagealloc boottime configurable
2014-12-13 12:42:48 -08:00
debug.c
mm: rework mapcount accounting to enable 4k mapping of THPs
2016-01-15 17:56:32 -08:00
dmapool.c
mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd
2015-11-06 17:50:42 -08:00
early_ioremap.c
mm/early_ioremap: use offset_in_page macro
2015-11-05 19:34:48 -08:00
fadvise.c
writeback: implement and use inode_congested()
2015-06-02 08:33:35 -06:00
failslab.c
mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM
2015-11-06 17:50:42 -08:00
filemap.c
mm: differentiate page_mapped() from page_mapcount() for compound pages
2016-01-15 17:56:32 -08:00
frame_vector.c
mm: fix docbook comment for get_vaddr_frames()
2015-11-05 19:34:48 -08:00
frontswap.c
frontswap: allow multiple backends
2015-06-24 17:49:45 -07:00
gup.c
thp: allow mlocked THP again
2016-01-15 17:56:32 -08:00
highmem.c
mm/highmem: make kmap cache coloring aware
2014-08-06 18:01:22 -07:00
huge_memory.c
thp: increase split_huge_page() success rate
2016-01-15 17:56:32 -08:00
hugetlb_cgroup.c
mm: make compound_head() robust
2015-11-06 17:50:42 -08:00
hugetlb.c
mm: rework mapcount accounting to enable 4k mapping of THPs
2016-01-15 17:56:32 -08:00
hwpoison-inject.c
hwpoison: use page_cgroup_ino for filtering by memcg
2015-09-10 13:29:01 -07:00
init-mm.c
…
internal.h
thp: reintroduce split_huge_page()
2016-01-15 17:56:32 -08:00
interval_tree.c
mm: replace vma->sharead.linear with vma->shared
2015-02-10 14:30:31 -08:00
Kconfig
mm: re-enable THP
2016-01-15 17:56:32 -08:00
Kconfig.debug
mm/debug_pagealloc: remove obsolete Kconfig options
2015-01-08 15:10:52 -08:00
kmemcheck.c
mm/slab_common: move kmem_cache definition to internal header
2014-10-09 22:25:50 -04:00
kmemleak-test.c
mm/kmemleak-test.c: use pr_fmt for logging
2014-06-06 16:08:18 -07:00
kmemleak.c
Revert "gfp: add __GFP_NOACCOUNT"
2016-01-14 16:00:49 -08:00
ksm.c
ksm: prepare to new THP semantics
2016-01-15 17:56:32 -08:00
list_lru.c
memcg: simplify and inline __mem_cgroup_from_kmem
2015-11-05 19:34:48 -08:00
maccess.c
mm/maccess.c: actually return -EFAULT from strncpy_from_unsafe
2015-11-05 19:34:48 -08:00
madvise.c
mm: madvise allow remove operation for hugetlbfs
2015-09-08 15:35:28 -07:00
Makefile
media updates for v4.3-rc1
2015-09-11 16:42:39 -07:00
memblock.c
mm/memblock: introduce for_each_memblock_type()
2016-01-14 16:00:49 -08:00
memcontrol.c
mm: rework mapcount accounting to enable 4k mapping of THPs
2016-01-15 17:56:32 -08:00
memory_hotplug.c
memory-hotplug: don't BUG() in register_memory_resource()
2016-01-14 16:00:49 -08:00
memory-failure.c
mm: hwpoison: adjust for new thp refcounting
2016-01-15 17:56:32 -08:00
memory.c
thp: allow mlocked THP again
2016-01-15 17:56:32 -08:00
mempolicy.c
migrate_pages: try to split pages on queuing
2016-01-15 17:56:32 -08:00
mempool.c
mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd
2015-11-06 17:50:42 -08:00
memtest.c
memtest: remove unused header files
2015-09-08 15:35:28 -07:00
migrate.c
thp: introduce deferred_split_huge_page()
2016-01-15 17:56:32 -08:00
mincore.c
mm, thp: remove infrastructure for handling splitting PMDs
2016-01-15 17:56:32 -08:00
mlock.c
thp: allow mlocked THP again
2016-01-15 17:56:32 -08:00
mm_init.c
mm: meminit: remove mminit_verify_page_links
2015-06-30 19:44:56 -07:00
mmap.c
mm: rework virtual memory accounting
2016-01-14 16:00:49 -08:00
mmu_context.c
sched/mm: call finish_arch_post_lock_switch in idle_task_exit and use_mm
2014-02-21 08:50:17 +01:00
mmu_notifier.c
mmu-notifier: add clear_young callback
2015-09-10 13:29:01 -07:00
mmzone.c
mm/mmzone.c: memmap_valid_within() can be boolean
2016-01-14 16:00:49 -08:00
mprotect.c
thp: rename split_huge_page_pmd() to split_huge_pmd()
2016-01-15 17:56:32 -08:00
mremap.c
mm, thp: remove infrastructure for handling splitting PMDs
2016-01-15 17:56:32 -08:00
msync.c
mm/msync: use offset_in_page macro
2015-11-05 19:34:48 -08:00
nobootmem.c
x86/mm: Introduce max_possible_pfn
2015-12-06 12:46:31 +01:00
nommu.c
kmemcg: account certain kmem allocations to memcg
2016-01-14 16:00:49 -08:00
oom_kill.c
mm, shmem: add internal shmem resident memory accounting
2016-01-14 16:00:49 -08:00
page_alloc.c
thp: introduce deferred_split_huge_page()
2016-01-15 17:56:32 -08:00
page_counter.c
mm: page_counter: let page_counter_try_charge() return bool
2015-11-05 19:34:48 -08:00
page_ext.c
mm: introduce idle page tracking
2015-09-10 13:29:01 -07:00
page_idle.c
mm: prepare page_referenced() and page_idle to new THP refcounting
2016-01-15 17:56:32 -08:00
page_io.c
fs: use helper bio_add_page() instead of open coding on bi_io_vec
2015-08-13 12:32:00 -06:00
page_isolation.c
mm/page_isolation: use macro to judge the alignment
2016-01-14 16:00:49 -08:00
page_owner.c
mm/page_owner: set correct gfp_mask on page_owner
2015-07-17 16:39:54 -07:00
page-writeback.c
mm: page_alloc: generalize the dirty balance reserve
2016-01-14 16:00:49 -08:00
pagewalk.c
thp: rename split_huge_page_pmd() to split_huge_pmd()
2016-01-15 17:56:32 -08:00
percpu-km.c
percpu: implmeent pcpu_nr_empty_pop_pages and chunk->nr_populated
2014-09-02 14:46:05 -04:00
percpu-vm.c
percpu: move region iterations out of pcpu_[de]populate_chunk()
2014-09-02 14:46:02 -04:00
percpu.c
mm/percpu: use offset_in_page macro
2015-11-05 19:34:48 -08:00
pgtable-generic.c
mm, thp: remove infrastructure for handling splitting PMDs
2016-01-15 17:56:32 -08:00
process_vm_access.c
process_vm_access: switch to {compat_,}import_iovec()
2015-04-11 22:27:12 -04:00
quicklist.c
…
readahead.c
mm: move lru_to_page to mm_inline.h
2016-01-14 16:00:49 -08:00
rmap.c
mm: prepare page_referenced() and page_idle to new THP refcounting
2016-01-15 17:56:32 -08:00
shmem.c
memcg: adjust to support new THP refcounting
2016-01-15 17:56:32 -08:00
slab_common.c
slab: add SLAB_ACCOUNT flag
2016-01-14 16:00:49 -08:00
slab.c
mm/slab.c: add a helper function get_first_slab
2016-01-14 16:00:49 -08:00
slab.h
slab: add SLAB_ACCOUNT flag
2016-01-14 16:00:49 -08:00
slob.c
slab/slub: adjust kmem_cache_alloc_bulk API
2015-11-22 11:58:44 -08:00
slub.c
page-flags: define PG_locked behavior on compound pages
2016-01-15 17:56:32 -08:00
sparse-vmemmap.c
mm/sparse: use memblock apis for early memory allocations
2014-01-21 16:19:47 -08:00
sparse.c
mm: use macros from compiler.h instead of __attribute__((...))
2014-04-07 16:35:54 -07:00
swap_cgroup.c
mm: page_cgroup: rename file to mm/swap_cgroup.c
2014-12-10 17:41:09 -08:00
swap_state.c
page-flags: define PG_locked behavior on compound pages
2016-01-15 17:56:32 -08:00
swap.c
thp: allow mlocked THP again
2016-01-15 17:56:32 -08:00
swapfile.c
mm, thp: adjust conditions when we can reuse the page on WP fault
2016-01-15 17:56:32 -08:00
truncate.c
memcg: add per cgroup dirty page accounting
2015-06-02 08:33:33 -06:00
userfaultfd.c
memcg: adjust to support new THP refcounting
2016-01-15 17:56:32 -08:00
util.c
mm: prepare page_referenced() and page_idle to new THP refcounting
2016-01-15 17:56:32 -08:00
vmacache.c
mm/vmacache: inline vmacache_valid_mm()
2015-11-05 19:34:48 -08:00
vmalloc.c
mm, vmalloc: remove VM_VPAGES
2016-01-14 16:00:49 -08:00
vmpressure.c
memcg: avoid vmpressure oops when memcg disabled
2016-01-14 16:00:49 -08:00
vmscan.c
page-flags: define PG_locked behavior on compound pages
2016-01-15 17:56:32 -08:00
vmstat.c
mm, vmstats: new THP splitting event
2016-01-15 17:56:32 -08:00
workingset.c
list_lru: add helpers to isolate items
2015-02-12 18:54:10 -08:00
zbud.c
mm/zbud.c: use list_last_entry() instead of list_tail_entry()
2016-01-15 11:40:52 -08:00
zpool.c
mm: zsmalloc: constify struct zs_pool name
2015-11-06 17:50:42 -08:00
zsmalloc.c
zsmalloc: reorganize struct size_class to pack 4 bytes hole
2016-01-15 11:40:52 -08:00
zswap.c
mm/zswap: change incorrect strncmp use to strcmp
2015-12-18 14:25:40 -08:00