David Rientjes 74eb879f48 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: Ben Hutchings <ben@decadent.org.uk>		2014-09-13 23:41:40 +01:00
..
backing-dev.c	backing-dev: fix wakeup timer races with bdi_unregister()	2012-02-20 12:46:18 -08:00
bootmem.c	bootmem/sparsemem: remove limit constraint in alloc_bootmem_section	2012-04-02 09:52:37 -07:00
bounce.c	block: Add bio_for_each_segment_all()	2013-09-10 01:57:27 +01:00
cleancache.c	mm: cleancache core ops functions and config	2011-05-26 10:01:36 -06:00
compaction.c	mm: compaction: fix echo 1 > compact_memory return error issue	2013-02-06 04:33:31 +00:00
debug-pagealloc.c	debug-pagealloc: add support for highmem pages	2011-10-31 17:30:48 -07:00
dmapool.c	mm: dmapool: use provided gfp flags for all dma_alloc_coherent() calls	2013-01-03 03:33:36 +00:00
fadvise.c	mm/fadvise.c: drain all pagevecs if POSIX_FADV_DONTNEED fails to discard all pages	2013-03-06 03:24:12 +00:00
failslab.c	fault-injection: add ability to export fault_attr in arbitrary directory	2011-08-03 14:25:20 -10:00
filemap_xip.c	mm/filemap_xip.c: fix race condition in xip_file_fault()	2012-02-13 11:16:54 -08:00
filemap.c	cpuset: mm: reduce large amounts of memory barrier related damage v3	2012-08-02 14:37:36 +01:00
fremap.c	mm: delete various needless include <linux/module.h>	2011-10-31 09:20:11 -04:00
highmem.c	mm: highmem: don't treat PKMAP_ADDR(LAST_PKMAP) as a highmem address	2014-07-11 13:33:33 +01:00
huge_memory.c	mm/huge_memory.c: fix potential NULL pointer dereference	2013-10-26 21:06:03 +01:00
hugetlb.c	mm: hugetlb: fix copy_hugetlb_page_range()	2014-08-06 18:07:42 +01:00
hwpoison-inject.c	Fix common misspellings	2011-03-31 11:26:23 -03:00
init-mm.c	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
internal.h	mm: setup pageblock_order before it's used by sparsemem	2012-08-10 00:25:09 +01:00
Kconfig	memblock: add NO_BOOTMEM config symbol	2011-10-31 17:30:47 -07:00
Kconfig.debug	mm: debug-pagealloc: fix kconfig dependency warning	2011-03-22 17:44:02 -07:00
kmemcheck.c	kmemcheck: Fix build errors due to missing slab.h	2010-03-30 22:02:32 +09:00
kmemleak-test.c	kmemleak: remove memset by using kzalloc	2011-01-27 18:31:51 +00:00
kmemleak.c	mm: kmemleak: avoid false negatives on vmalloc'ed objects	2014-08-06 18:07:42 +01:00
ksm.c	oom: fix race while temporarily setting current's oom_score_adj	2011-10-31 17:30:45 -07:00
maccess.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
madvise.c	mm: Hold a file reference in madvise_remove	2012-07-12 04:32:19 +01:00
Makefile	Cross Memory Attach	2011-10-31 17:30:44 -07:00
memblock.c	mm/memblock.c: quiet sparse noise	2011-10-31 17:30:50 -07:00
memcontrol.c	memcg: fix multiple large threshold notifications	2013-10-26 21:06:03 +01:00
memory_hotplug.c	mm/hotplug: correctly add new zone to all other nodes' zone lists	2013-03-20 15:03:39 +00:00
memory-failure.c	mm/memory-failure.c: fix memory leak by race between poison and unpoison	2014-06-09 13:29:15 +01:00
memory.c	mm: make fixup_user_fault() check the vma access rights too	2014-05-18 14:58:06 +01:00
mempolicy.c	cpuset,mempolicy: fix sleeping function called from invalid context	2014-08-06 18:07:33 +01:00
mempool.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
migrate.c	mm: migration: add migrate_entry_wait_huge()	2013-06-19 02:17:01 +01:00
mincore.c	mm: thp: fix pmd_bad() triggering in code paths holding mmap_sem read mode	2012-04-02 09:52:37 -07:00
mlock.c	mm: try_to_unmap_cluster() should lock_page() before mlocking	2014-04-30 16:23:26 +01:00
mm_init.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
mmap.c	mm: ensure get_unmapped_area() returns higher address than mmap_min_addr	2014-02-15 19:20:11 +00:00
mmu_context.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
mmu_notifier.c	mm: mmu_notifier: re-fix freed page still mapped in secondary MMU	2013-05-30 14:35:06 +01:00
mmzone.c	mm: delete various needless include <linux/module.h>	2011-10-31 09:20:11 -04:00
mprotect.c	thp: mprotect: transparent huge page support	2011-01-13 17:32:44 -08:00
mremap.c	thp: mremap support and TLB optimization	2011-10-31 17:30:48 -07:00
msync.c	sanitize vfs_fsync calling conventions	2010-05-21 18:31:21 -04:00
nobootmem.c	mm: nobootmem: fix sign extend problem in __free_pages_memory()	2012-05-20 22:56:33 +01:00
nommu.c	vm: add no-mmu vm_iomap_memory() stub	2013-09-10 01:57:10 +01:00
oom_kill.c	mm, oom: base root bonus on current usage	2014-04-02 00:58:46 +01:00
page_alloc.c	mm, thp: do not allow thp faults to avoid cpuset restrictions	2014-09-13 23:41:40 +01:00
page_cgroup.c	mm/page_cgroup.c: quiet sparse noise	2011-11-02 16:07:00 -07:00
page_io.c	block: kill off REQ_UNPLUG	2011-03-10 08:52:27 +01:00
page_isolation.c	mm: page_isolation: codeclean fix comment and rm unneeded val init	2010-10-26 16:52:11 -07:00
page-writeback.c	mm/page-writeback.c: fix divide by zero in pos_ratio_polynom	2014-06-09 13:29:09 +01:00
pagewalk.c	mm/pagewalk.c: walk_page_range should avoid VM_PFNMAP areas	2013-05-30 14:35:08 +01:00
percpu-km.c	percpu: clear memory allocated with the km allocator	2010-10-02 10:28:42 +03:00
percpu-vm.c	percpu: fix chunk range calculation	2011-11-22 08:09:46 -08:00
percpu.c	percpu: pcpu_embed_first_chunk() should free unused parts after all allocs are complete	2012-05-20 22:56:31 +01:00
pgtable-generic.c	mm/pgtable-generic.c: fix CONFIG_SWAP=n build	2011-01-26 10:49:58 +10:00
prio_tree.c	sanitize <linux/prefetch.h> usage	2011-05-20 12:50:29 -07:00
process_vm_access.c	Fix: compat_rw_copy_check_uvector() misuse in aio, readv, writev, and security keys	2013-03-20 15:03:37 +00:00
quicklist.c	mm: delete various needless include <linux/module.h>	2011-10-31 09:20:11 -04:00
readahead.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
rmap.c	mm: rmap: fix use-after-free in __put_anon_vma	2014-07-11 13:33:50 +01:00
shmem.c	shmem: fix splicing from a hole while it's punched	2014-08-06 18:07:40 +01:00
slab.c	slab: fix the DEADLOCK issue on l3 alien lock	2012-10-17 03:48:22 +01:00
slob.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
slub.c	slub: Fix calculation of cpu slabs	2014-04-02 00:58:40 +01:00
sparse-vmemmap.c	mm: delete various needless include <linux/module.h>	2011-10-31 09:20:11 -04:00
sparse.c	mm/vmemmap: fix wrong use of virt_to_page	2012-12-06 11:20:36 +00:00
swap_state.c	swap: avoid read_swap_cache_async() race to deadlock while waiting on discard I/O completion	2013-06-19 02:17:01 +01:00
swap.c	mm: hugetlbfs: fix hugetlbfs optimization	2014-02-15 19:20:17 +00:00
swapfile.c	mm/swap: fix race on swap_info reuse between swapoff and swapon	2014-04-02 00:58:49 +01:00
thrash.c	mm/thrash.c: quiet sparse noise	2011-10-31 17:30:50 -07:00
truncate.c	shmem: fix faulting into a hole while it's punched	2014-08-06 18:07:40 +01:00
util.c	mm: Map most files to use export.h instead of module.h	2011-10-31 09:20:12 -04:00
vmalloc.c	mm: kmemleak: avoid false negatives on vmalloc'ed objects	2014-08-06 18:07:42 +01:00
vmscan.c	mm: vmscan: clear kswapd's special reclaim powers before exiting	2014-07-11 13:33:47 +01:00
vmstat.c	mm/vmstat.c: cache align vm_stat	2011-10-31 17:30:51 -07:00