David Rientjes 1144d70b37 mm, thp: do not allow thp faults to avoid cpuset restrictions ...

commit b104a35d32 upstream.

The page allocator relies on __GFP_WAIT to determine if ALLOC_CPUSET
should be set in allocflags.  ALLOC_CPUSET controls if a page allocation
should be restricted only to the set of allowed cpuset mems.

Transparent hugepages clears __GFP_WAIT when defrag is disabled to prevent
the fault path from using memory compaction or direct reclaim.  Thus, it
is unfairly able to allocate outside of its cpuset mems restriction as a
side-effect.

This patch ensures that ALLOC_CPUSET is only cleared when the gfp mask is
truly GFP_ATOMIC by verifying it is also not a thp allocation.

Signed-off-by: David Rientjes <rientjes@google.com>
Reported-by: Alex Thorlton <athorlton@sgi.com>
Tested-by: Alex Thorlton <athorlton@sgi.com>
Cc: Bob Liu <lliubbo@gmail.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Hedi Berriche <hedi@sgi.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2014-08-07 14:30:26 -07:00

..

backing-dev.c

bdi: avoid oops on device removal

2014-04-26 17:15:35 -07:00

balloon_compaction.c

…

bootmem.c

…

bounce.c

mm/bounce.c: fix a regression where MS_SNAP_STABLE (stable pages snapshotting) was ignored

2013-10-13 16:08:33 -07:00

cleancache.c

mm: cleancache: clean up cleancache_enabled

2013-04-30 17:04:01 -07:00

compaction.c

mm/compaction: make isolate_freepages start at pageblock boundary

2014-06-16 13:42:53 -07:00

debug-pagealloc.c

…

dmapool.c

…

fadvise.c

…

failslab.c

…

filemap_xip.c

…

filemap.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2013-05-01 17:51:54 -07:00

fremap.c

mm: fix use-after-free in sys_remap_file_pages

2014-01-09 12:24:24 -08:00

frontswap.c

frontswap: fix incorrect zeroing and allocation size for frontswap_map

2013-06-12 16:29:46 -07:00

highmem.c

…

huge_memory.c

thp: fix copy_page_rep GPF by testing is_huge_zero_pmd once only

2014-01-25 08:27:12 -08:00

hugetlb_cgroup.c

…

hugetlb.c

mm: hugetlb: fix copy_hugetlb_page_range()

2014-07-31 12:53:51 -07:00

hwpoison-inject.c

…

init-mm.c

…

internal.h

…

interval_tree.c

…

Kconfig

mmKconfig: add an option to disable bounce

2013-04-29 15:54:40 -07:00

Kconfig.debug

…

kmemcheck.c

…

kmemleak-test.c

…

kmemleak.c

…

ksm.c

mm: close PageTail race

2014-04-03 12:01:05 -07:00

maccess.c

…

madvise.c

…

Makefile

…

memblock.c

…

memcontrol.c

memcg: reparent charges of children before processing parent

2014-03-23 21:38:20 -07:00

memory_hotplug.c

mm/memory_hotplug.c: fix printk format warnings

2013-05-24 16:22:52 -07:00

memory-failure.c

mm/memory-failure.c: don't let collect_procs() skip over processes for MF_ACTION_REQUIRED

2014-06-30 20:09:42 -07:00

memory.c

mm: make fixup_user_fault() check the vma access rights too

2014-06-07 13:25:29 -07:00

mempolicy.c

cpuset,mempolicy: fix sleeping function called from invalid context

2014-07-17 15:58:00 -07:00

mempool.c

…

migrate.c

mm: numa: avoid unnecessary work on the failure path

2014-01-09 12:24:23 -08:00

mincore.c

…

mlock.c

mm: try_to_unmap_cluster() should lock_page() before mlocking

2014-05-06 07:55:32 -07:00

mm_init.c

…

mmap.c

mm: ensure get_unmapped_area() returns higher address than mmap_min_addr

2013-12-04 10:56:39 -08:00

mmu_context.c

mm: remove old aio use_mm() comment

2013-05-07 18:38:27 -07:00

mmu_notifier.c

mm: mmu_notifier: re-fix freed page still mapped in secondary MMU

2013-05-24 16:22:51 -07:00

mmzone.c

…

mprotect.c

mm: fix TLB flush race between migration, and change_protection_range

2014-01-09 12:24:23 -08:00

mremap.c

mm, thp: close race between mremap() and split_huge_page()

2014-06-07 13:25:31 -07:00

msync.c

…

nobootmem.c

mm, nobootmem: do memset() after memblock_reserve()

2013-04-29 15:54:39 -07:00

nommu.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal

2013-05-01 07:21:43 -07:00

oom_kill.c

mm, oom: base root bonus on current usage

2014-02-13 13:48:02 -08:00

page_alloc.c

mm, thp: do not allow thp faults to avoid cpuset restrictions

2014-08-07 14:30:26 -07:00

page_cgroup.c

…

page_io.c

Merge branch 'for-3.10/core' of git://git.kernel.dk/linux-block

2013-05-08 10:13:35 -07:00

page_isolation.c

…

page-writeback.c

mm: __set_page_dirty_nobuffers() uses spin_lock_irqsave() instead of spin_lock_irq()

2014-02-20 11:06:11 -08:00

pagewalk.c

mm/pagewalk.c: fix walk_page_range() access of wrong PTEs

2013-11-13 12:05:34 +09:00

percpu-km.c

…

percpu-vm.c

…

percpu.c

percpu: make pcpu_alloc_chunk() use pcpu_mem_free() instead of kfree()

2014-06-07 13:25:37 -07:00

pgtable-generic.c

mm: fix TLB flush race between migration, and change_protection_range

2014-01-09 12:24:23 -08:00

process_vm_access.c

…

quicklist.c

…

readahead.c

…

rmap.c

mm: fix sleeping function warning from __put_anon_vma

2014-06-30 20:09:42 -07:00

shmem.c

shmem: fix splicing from a hole while it's punched

2014-07-28 08:00:03 -07:00

slab_common.c

slab_common: fix the check for duplicate slab names

2014-07-31 12:53:50 -07:00

slab.c

slab: fix init_lock_keys

2013-07-21 18:21:26 -07:00

slab.h

memcg: check that kmem_cache has memcg_params before accessing it

2013-09-07 22:09:58 -07:00

slob.c

…

slub.c

slub: Fix calculation of cpu slabs

2014-02-13 13:48:00 -08:00

sparse-vmemmap.c

…

sparse.c

…

swap_state.c

swap: avoid read_swap_cache_async() race to deadlock while waiting on discard I/O completion

2013-06-12 16:29:45 -07:00

swap.c

mm: close PageTail race

2014-04-03 12:01:05 -07:00

swapfile.c

frontswap: fix incorrect zeroing and allocation size for frontswap_map

2013-06-12 16:29:46 -07:00

truncate.c

…

util.c

…

vmalloc.c

mm/vmalloc.c: fix an overflow bug in alloc_vmap_area()

2013-11-13 12:05:34 +09:00

vmpressure.c

…

vmscan.c

mm: vmscan: clear kswapd's special reclaim powers before exiting

2014-06-30 20:09:42 -07:00

vmstat.c

mm: numa: return the number of base pages altered by protection changes

2013-12-08 07:29:27 -08:00