Kirill A. Shutemov 0a2e280b6d mm, thp: fix migration of PTE-mapped transparent huge pages ... We don't have native support of THP migration, so we have to split huge page into small pages in order to migrate it to different node. This includes PTE-mapped huge pages. I made mistake in refcounting patchset: we don't actually split PTE-mapped huge page in queue_pages_pte_range(), if we step on head page. The result is that the head page is queued for migration, but none of tail pages: putting head page on queue takes pin on the page and any subsequent attempts of split_huge_pages() would fail and we skip queuing tail pages. unmap_and_move_huge_page() will eventually split the huge pages, but only one of 512 pages would get migrated. Let's fix the situation. Fixes: 248db92da1 ("migrate_pages: try to split pages on queuing") Signed-off-by: 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>		2016-03-09 15:43:42 -08:00
..
kasan	kasan: add functions to clear stack poison	2016-03-09 15:43:42 -08:00
backing-dev.c	mm/backing-dev.c: fix error path in wb_init()	2016-02-11 18:35:48 -08:00
balloon_compaction.c	virtio_balloon: fix race between migration and ballooning	2016-01-12 20:47:06 +02:00
bootmem.c	x86/mm: Introduce max_possible_pfn	2015-12-06 12:46:31 +01:00
cleancache.c	cleancache: constify cleancache_ops structure	2016-01-27 09:09:57 -05:00
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
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: __delete_from_page_cache show Bad page if mapped	2016-03-09 15:43:42 -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	mm: retire GUP WARN_ON_ONCE that outlived its usefulness	2016-02-03 08:57:14 -08:00
highmem.c
huge_memory.c	thp: call pmdp_invalidate() with correct virtual address	2016-02-24 10:46:30 -08:00
hugetlb_cgroup.c	mm: make compound_head() robust	2015-11-06 17:50:42 -08:00
hugetlb.c	mm/hugetlb: hugetlb_no_page: rate-limit warning message	2016-03-09 15:43:42 -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: polish virtual memory accounting	2016-02-03 08:28:43 -08:00
interval_tree.c
Kconfig	mm/Kconfig: correct description of DEFERRED_STRUCT_PAGE_INIT	2016-02-05 18:10:40 -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	mm/ksm.c: mark stable page dirty	2016-01-15 17:56:32 -08:00
list_lru.c	mm: memcontrol: move kmem accounting code to CONFIG_MEMCG	2016-01-20 17:09:18 -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/huge_memory.c: don't split THP page when MADV_FREE syscall is called	2016-01-15 17:56:32 -08:00
Makefile	media updates for v4.3-rc1	2015-09-11 16:42:39 -07:00
memblock.c	memblock: don't mark memblock_phys_mem_size() as __init	2016-02-05 18:10:40 -08:00
memcontrol.c	thp: change pmd_trans_huge_lock() interface to return ptl	2016-01-21 17:20:51 -08:00
memory_hotplug.c	x86, mm: introduce vmem_altmap to augment vmemmap_populate()	2016-01-15 17:56:32 -08:00
memory-failure.c	mm: soft-offline: exit with failure for non anonymous thp	2016-01-15 17:56:32 -08:00
memory.c	mm: thp: fix SMP race condition between THP page fault and MADV_DONTNEED	2016-02-27 10:28:52 -08:00
mempolicy.c	mm, thp: fix migration of PTE-mapped transparent huge pages	2016-03-09 15:43:42 -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	mm: numa: quickly fail allocations for NUMA balancing on full nodes	2016-02-27 10:28:52 -08:00
mincore.c	thp: change pmd_trans_huge_lock() interface to return ptl	2016-01-21 17:20:51 -08:00
mlock.c	mm: fix mlock accouting	2016-01-21 17:20:51 -08:00
mm_init.c	mm: meminit: remove mminit_verify_page_links	2015-06-30 19:44:56 -07:00
mmap.c	mm: fix regression in remap_file_pages() emulation	2016-02-18 16:23:24 -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	mm, dax: check for pmd_none() after split_huge_pmd()	2016-02-11 18:35:48 -08:00
mremap.c	mm, dax: check for pmd_none() after split_huge_pmd()	2016-02-11 18:35:48 -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, hugetlb: don't require CMA for runtime gigantic pages	2016-02-05 18:10:40 -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: add page_check_address_transhuge() helper	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: do some cleanup in "undo_isolate_page_range"	2016-01-15 17:56:32 -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-vm.c
percpu.c	tree wide: use kvfree() than conditional kfree()/vfree()	2016-01-22 17:02:18 -08:00
pgtable-generic.c	mm,thp: fix spellos in describing __HAVE_ARCH_FLUSH_PMD_TLB_RANGE	2016-02-11 18:35:48 -08:00
process_vm_access.c	ptrace: use fsuid, fsgid, effective creds for fs access checks	2016-01-20 17:09:18 -08:00
quicklist.c
readahead.c	mm: move lru_to_page to mm_inline.h	2016-01-14 16:00:49 -08:00
rmap.c	mm: fix locking order in mm_take_all_locks()	2016-01-15 17:56:32 -08:00
shmem.c	make sure that freeing shmem fast symlinks is RCU-delayed	2016-01-22 18:08:52 -05:00
slab_common.c	mm: slab: free kmem_cache_node after destroy sysfs file	2016-02-18 16:23:24 -08:00
slab.c	mm: slab: free kmem_cache_node after destroy sysfs file	2016-02-18 16:23:24 -08:00
slab.h	mm: slab: free kmem_cache_node after destroy sysfs file	2016-02-18 16:23:24 -08:00
slob.c	mm: slab: free kmem_cache_node after destroy sysfs file	2016-02-18 16:23:24 -08:00
slub.c	mm: slab: free kmem_cache_node after destroy sysfs file	2016-02-18 16:23:24 -08:00
sparse-vmemmap.c	x86, mm: introduce vmem_altmap to augment vmemmap_populate()	2016-01-15 17:56:32 -08:00
sparse.c	x86, mm: introduce vmem_altmap to augment vmemmap_populate()	2016-01-15 17:56:32 -08:00
swap_cgroup.c
swap_state.c	mm: memcontrol: charge swap to cgroup2	2016-01-20 17:09:18 -08:00
swap.c	mm, x86: get_user_pages() for dax mappings	2016-01-15 17:56:32 -08:00
swapfile.c	wrappers for ->i_mutex access	2016-01-22 18:04:28 -05:00
truncate.c	dax: support dirty DAX entries in radix tree	2016-01-22 17:02:18 -08:00
userfaultfd.c	memcg: adjust to support new THP refcounting	2016-01-15 17:56:32 -08:00
util.c	proc: revert /proc/<pid>/maps [stack:TID] annotation	2016-02-03 08:28:43 -08:00
vmacache.c	mm/vmacache: inline vmacache_valid_mm()	2015-11-05 19:34:48 -08:00
vmalloc.c	mm/vmalloc.c: use macro IS_ALIGNED to judge the aligment	2016-01-15 17:56:32 -08:00
vmpressure.c	mm/vmpressure.c: fix subtree pressure detection	2016-02-03 08:28:43 -08:00
vmscan.c	mm: downgrade VM_BUG in isolate_lru_page() to warning	2016-02-05 18:10:40 -08:00
vmstat.c	vmstat: make vmstat_update deferrable	2016-02-05 18:10:40 -08:00
workingset.c	dax: support dirty DAX entries in radix tree	2016-01-22 17:02:18 -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: fix migrate_zspage-zs_free race condition	2016-01-20 17:09:18 -08:00
zswap.c	mm/zswap: change incorrect strncmp use to strcmp	2015-12-18 14:25:40 -08:00