David Rientjes f0432d1596 mm, mempolicy: remove per-process flag ... PF_MEMPOLICY is an unnecessary optimization for CONFIG_SLAB users. There's no significant performance degradation to checking current->mempolicy rather than current->flags & PF_MEMPOLICY in the allocation path, especially since this is considered unlikely(). Running TCP_RR with netperf-2.4.5 through localhost on 16 cpu machine with 64GB of memory and without a mempolicy: threads before after 16 1249409 1244487 32 1281786 1246783 48 1239175 1239138 64 1244642 1241841 80 1244346 1248918 96 1266436 1254316 112 1307398 1312135 128 1327607 1326502 Per-process flags are a scarce resource so we should free them up whenever possible and make them available. We'll be using it shortly for memcg oom reserves. Signed-off-by: David Rientjes <rientjes@google.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@suse.cz> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Pekka Enberg <penberg@kernel.org> Cc: Tejun Heo <tj@kernel.org> Cc: Mel Gorman <mgorman@suse.de> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Rik van Riel <riel@redhat.com> Cc: Jianguo Wu <wujianguo@huawei.com> Cc: Tim Hockin <thockin@google.com> Cc: Christoph Lameter <cl@linux.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2014-04-07 16:35:54 -07:00
..
backing-dev.c
balloon_compaction.c
bootmem.c
bounce.c
cleancache.c
compaction.c	mm/compaction: clean-up code on success of ballon isolation	2014-04-07 16:35:51 -07:00
debug-pagealloc.c
dmapool.c
fadvise.c
failslab.c
filemap_xip.c
filemap.c	mm: cleanup size checks in filemap_fault() and filemap_map_pages()	2014-04-07 16:35:53 -07:00
fremap.c
frontswap.c
highmem.c
huge_memory.c	mm: revert "thp: make MADV_HUGEPAGE check for mm->def_flags"	2014-04-07 16:35:51 -07:00
hugetlb_cgroup.c
hugetlb.c	mm: use macros from compiler.h instead of __attribute__((...))	2014-04-07 16:35:54 -07:00
hwpoison-inject.c
init-mm.c
internal.h
interval_tree.c
Kconfig	mm: disable split page table lock for !MMU	2014-04-07 16:35:52 -07:00
Kconfig.debug
kmemcheck.c
kmemleak-test.c
kmemleak.c
ksm.c
list_lru.c
maccess.c
madvise.c
Makefile	mm: per-thread vma caching	2014-04-07 16:35:53 -07:00
memblock.c
memcontrol.c
memory_hotplug.c
memory-failure.c
memory.c	mm: add debugfs tunable for fault_around_order	2014-04-07 16:35:53 -07:00
mempolicy.c	mm, mempolicy: remove per-process flag	2014-04-07 16:35:54 -07:00
mempool.c
migrate.c
mincore.c
mlock.c
mm_init.c
mmap.c	mm: per-thread vma caching	2014-04-07 16:35:53 -07:00
mmu_context.c
mmu_notifier.c
mmzone.c
mprotect.c	mm: move mmu notifier call from change_protection to change_pmd_range	2014-04-07 16:35:50 -07:00
mremap.c
msync.c
nobootmem.c
nommu.c	mm: use macros from compiler.h instead of __attribute__((...))	2014-04-07 16:35:54 -07:00
oom_kill.c
page_alloc.c	mm: exclude memoryless nodes from zone_reclaim	2014-04-07 16:35:50 -07:00
page_cgroup.c
page_io.c
page_isolation.c
page-writeback.c
pagewalk.c
percpu-km.c
percpu-vm.c
percpu.c
pgtable-generic.c
process_vm_access.c
quicklist.c
readahead.c
rmap.c
shmem.c	mm: implement ->map_pages for shmem/tmpfs	2014-04-07 16:35:53 -07:00
slab_common.c
slab.c	mm, mempolicy: remove per-process flag	2014-04-07 16:35:54 -07:00
slab.h
slob.c
slub.c	mm, mempolicy: rename slab_node for clarity	2014-04-07 16:35:54 -07:00
sparse-vmemmap.c
sparse.c	mm: use macros from compiler.h instead of __attribute__((...))	2014-04-07 16:35:54 -07:00
swap_state.c
swap.c
swapfile.c
truncate.c
util.c	mm: use macros from compiler.h instead of __attribute__((...))	2014-04-07 16:35:54 -07:00
vmacache.c	mm: per-thread vma caching	2014-04-07 16:35:53 -07:00
vmalloc.c	mm: use macros from compiler.h instead of __attribute__((...))	2014-04-07 16:35:54 -07:00
vmpressure.c
vmscan.c	mm/vmscan: do not check compaction_ready on promoted zones	2014-04-07 16:35:50 -07:00
vmstat.c
workingset.c
zbud.c
zsmalloc.c
zswap.c