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f765f54059
linux/mm
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Kirill A. Shutemov f765f54059 ksm: prepare to new THP semantics 
We don't need special code to stabilize THP.  If you've got reference to
any subpage of THP it will not be split under you.

New split_huge_page() also accepts tail pages: no need in special code
to get reference to head page.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Tested-by: Sasha Levin <sasha.levin@oracle.com>
Tested-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Jerome Marchand <jmarchan@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Steve Capper <steve.capper@linaro.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
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
cma_debug.c
cma.c mm/cma.c: suppress warning 2015-11-05 19:34:48 -08:00
cma.h
compaction.c mm/compaction.c: __compact_pgdat() code cleanuup 2016-01-14 16:00:49 -08:00
debug-pagealloc.c
debug.c mm: rework virtual memory accounting 2016-01-14 16:00:49 -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
failslab.c mm, page_alloc: rename __GFP_WAIT to __GFP_RECLAIM 2015-11-06 17:50:42 -08:00
filemap.c memcg: adjust to support new THP refcounting 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
gup.c mm: drop tail page refcounting 2016-01-15 17:56:32 -08:00
highmem.c
huge_memory.c mm: drop tail page refcounting 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: drop tail page refcounting 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 mm: drop tail page refcounting 2016-01-15 17:56:32 -08:00
interval_tree.c
Kconfig mm: temporarily mark THP broken 2016-01-15 17:56:32 -08:00
Kconfig.debug
kmemcheck.c
kmemleak-test.c
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 memcg: adjust to support new THP refcounting 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 page-flags: define PG_locked behavior on compound pages 2016-01-15 17:56:32 -08:00
memory.c thp: rename split_huge_page_pmd() to split_huge_pmd() 2016-01-15 17:56:32 -08:00
mempolicy.c thp: rename split_huge_page_pmd() to split_huge_pmd() 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 rmap: add argument to charge compound page 2016-01-15 17:56:32 -08:00
mincore.c mm/mincore: use offset_in_page macro 2015-11-05 19:34:48 -08:00
mlock.c thp, mlock: do not allow huge pages in mlocked area 2016-01-15 17:56:32 -08:00
mm_init.c
mmap.c mm: rework virtual memory accounting 2016-01-14 16:00:49 -08:00
mmu_context.c
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 thp: rename split_huge_page_pmd() to split_huge_pmd() 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 mm: sanitize page->mapping for tail pages 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: introduce idle page tracking 2015-09-10 13:29:01 -07:00
page_io.c
page_isolation.c mm/page_isolation: use macro to judge the alignment 2016-01-14 16:00:49 -08:00
page_owner.c
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-vm.c
percpu.c mm/percpu: use offset_in_page macro 2015-11-05 19:34:48 -08:00
pgtable-generic.c mm, thp: use list_first_entry_or_null() 2016-01-14 16:00:49 -08:00
process_vm_access.c
quicklist.c
readahead.c mm: move lru_to_page to mm_inline.h 2016-01-14 16:00:49 -08:00
rmap.c rmap: add argument to charge compound page 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
sparse.c
swap_cgroup.c
swap_state.c page-flags: define PG_locked behavior on compound pages 2016-01-15 17:56:32 -08:00
swap.c mm: drop tail page refcounting 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
userfaultfd.c memcg: adjust to support new THP refcounting 2016-01-15 17:56:32 -08:00
util.c mm: sanitize page->mapping for tail pages 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
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