Johannes Weiner fff4068cba mm: page_alloc: revert NUMA aspect of fair allocation policy ... Commit 81c0a2bb51 ("mm: page_alloc: fair zone allocator policy") meant to bring aging fairness among zones in system, but it was overzealous and badly regressed basic workloads on NUMA systems. Due to the way kswapd and page allocator interacts, we still want to make sure that all zones in any given node are used equally for all allocations to maximize memory utilization and prevent thrashing on the highest zone in the node. While the same principle applies to NUMA nodes - memory utilization is obviously improved by spreading allocations throughout all nodes - remote references can be costly and so many workloads prefer locality over memory utilization. The original change assumed that zone_reclaim_mode would be a good enough predictor for that, but it turned out to be as indicative as a coin flip. Revert the NUMA aspect of the fairness until we can find a proper way to make it configurable and agree on a sane default. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Reviewed-by: Michal Hocko <mhocko@suse.cz> Signed-off-by: Mel Gorman <mgorman@suse.de> Cc: <stable@kernel.org> # 3.12 Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2013-12-20 12:19:18 -08:00
..
backing-dev.c	mm/backing-dev.c: check user buffer length before copying data to the related user buffer	2013-09-11 15:58:03 -07:00
balloon_compaction.c
bootmem.c	mm/bootmem.c: remove unused local `map'	2013-11-13 12:09:09 +09:00
bounce.c	mm/bounce.c: fix a regression where MS_SNAP_STABLE (stable pages snapshotting) was ignored	2013-09-30 14:31:02 -07:00
cleancache.c
compaction.c	mm/compaction: respect ignore_skip_hint in update_pageblock_skip	2013-12-18 19:04:52 -08:00
debug-pagealloc.c
dmapool.c
fadvise.c
failslab.c
filemap.c	mm: drop actor argument of do_generic_file_read()	2013-11-15 09:32:13 +09:00
filemap_xip.c	seqcount: Add lockdep functionality to seqcount/seqlock structures	2013-11-06 12:40:26 +01:00
fremap.c	mm: save soft-dirty bits on file pages	2013-08-13 17:57:48 -07:00
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	mm: numa: defer TLB flush for THP migration as long as possible	2013-12-18 19:04:51 -08:00
hugetlb.c	mm: hugetlbfs: fix hugetlbfs optimization	2013-11-21 16:42:27 -08:00
hugetlb_cgroup.c	cgroup: pass around cgroup_subsys_state instead of cgroup in file methods	2013-08-08 20:11:24 -04:00
hwpoison-inject.c	mm/hwpoison: fix the lack of one reference count against poisoned page	2013-09-30 14:31:03 -07:00
init-mm.c
internal.h	mm: vmscan: fix do_try_to_free_pages() livelock	2013-09-11 15:58:01 -07:00
interval_tree.c
Kconfig	mm: add missing dependency in Kconfig	2013-12-18 19:04:52 -08:00
Kconfig.debug
kmemcheck.c
kmemleak-test.c
kmemleak.c	mm: kmemleak: avoid false negatives on vmalloc'ed objects	2013-11-13 12:09:07 +09:00
ksm.c	ksm: remove redundant __GFP_ZERO from kcalloc	2013-11-13 12:09:02 +09:00
list_lru.c	mm: list_lru: fix almost infinite loop causing effective livelock	2013-10-30 12:57:46 -07:00
maccess.c
madvise.c	mm/hwpoison: fix traversal of hugetlbfs pages to avoid printk flood	2013-09-30 14:31:02 -07:00
Makefile	list: add a new LRU list type	2013-09-10 18:56:30 -04:00
memblock.c	mm/memblock.c: introduce bottom-up allocation mode	2013-11-13 12:09:08 +09:00
memcontrol.c	mm: memcg: do not allow task about to OOM kill to bypass the limit	2013-12-12 18:19:26 -08:00
memory-failure.c	mm/memory-failure.c: recheck PageHuge() after hugetlb page migrate successfully	2013-12-18 19:04:52 -08:00
memory.c	Revert "mm: create a separate slab for page->ptl allocation"	2013-11-20 14:41:47 -08:00
memory_hotplug.c	mem-hotplug: introduce movable_node boot option	2013-11-13 12:09:09 +09:00
mempolicy.c	mm/mempolicy: fix !vma in new_vma_page()	2013-12-18 19:04:52 -08:00
mempool.c	mm/mempool.c: convert kmalloc_node(...GFP_ZERO...) to kzalloc_node(...)	2013-09-11 15:58:14 -07:00
migrate.c	mm: numa: defer TLB flush for THP migration as long as possible	2013-12-18 19:04:51 -08:00
mincore.c
mlock.c	mm/mlock.c: prevent walking off the end of a pagetable in no-pmd configuration	2013-09-30 14:31:02 -07:00
mm_init.c	mm: numa: Change page last {nid,pid} into {cpu,pid}	2013-10-09 14:47:45 +02:00
mmap.c	mm: convert mm->nr_ptes to atomic_long_t	2013-11-15 09:32:14 +09:00
mmu_context.c	mm: remove old aio use_mm() comment	2013-05-07 18:38:27 -07:00
mmu_notifier.c	treewide: relase -> release	2013-06-28 14:34:33 +02:00
mmzone.c	mm: numa: Change page last {nid,pid} into {cpu,pid}	2013-10-09 14:47:45 +02:00
mprotect.c	mm: fix TLB flush race between migration, and change_protection_range	2013-12-18 19:04:51 -08:00
mremap.c	mm: revert mremap pud_free anti-fix	2013-10-16 21:35:53 -07:00
msync.c
nobootmem.c	mm/nobootmem.c: have __free_pages_memory() free in larger chunks.	2013-11-13 12:09:04 +09:00
nommu.c	Merge branch 'akpm' (patches from Andrew Morton)	2013-11-13 15:45:43 +09:00
oom_kill.c	mm: convert mm->nr_ptes to atomic_long_t	2013-11-15 09:32:14 +09:00
page-writeback.c	writeback: fix negative bdi max pause	2013-10-16 21:35:53 -07:00
page_alloc.c	mm: page_alloc: revert NUMA aspect of fair allocation policy	2013-12-20 12:19:18 -08:00
page_cgroup.c
page_io.c	aio: Kill aio_rw_vect_retry()	2013-07-30 11:53:12 -04:00
page_isolation.c	mm: memory-hotplug: enable memory hotplug to handle hugepage	2013-09-11 15:57:48 -07:00
pagewalk.c	mm/pagewalk.c: fix walk_page_range() access of wrong PTEs	2013-10-30 14:27:03 -07:00
percpu-km.c
percpu-vm.c
percpu.c	percpu: fix bootmem error handling in pcpu_page_first_chunk()	2013-09-23 10:51:45 -04:00
pgtable-generic.c	mm: fix TLB flush race between migration, and change_protection_range	2013-12-18 19:04:51 -08:00
process_vm_access.c
quicklist.c
readahead.c	readahead: fix sequential read cache miss detection	2013-11-13 12:09:09 +09:00
rmap.c	mm/hugetlb: check for pte NULL pointer in __page_check_address()	2013-12-18 19:04:52 -08:00
shmem.c	security: shmem: implement kernel private shmem inodes	2013-12-02 11:24:19 +00:00
slab.c	Merge branch 'slab/next' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux	2013-11-22 08:10:34 -08:00
slab.h	memcg, kmem: rename cache_from_memcg to cache_from_memcg_idx	2013-11-13 12:09:10 +09:00
slab_common.c	memcg, kmem: rename cache_from_memcg to cache_from_memcg_idx	2013-11-13 12:09:10 +09:00
slob.c	mm/sl[aou]b: Move kmallocXXX functions to common code	2013-09-04 20:51:33 +03:00
slub.c	Merge branch 'slab/next' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux	2013-11-22 08:10:34 -08:00
sparse-vmemmap.c
sparse.c	mm/sparsemem: fix a bug in free_map_bootmem when CONFIG_SPARSEMEM_VMEMMAP	2013-11-13 12:09:06 +09:00
swap.c	mm: hugetlbfs: fix hugetlbfs optimization	2013-11-21 16:42:27 -08:00
swap_state.c	lib/radix-tree.c: make radix_tree_node_alloc() work correctly within interrupt	2013-09-11 15:59:36 -07:00
swapfile.c	frontswap: enable call to invalidate area on swapoff	2013-11-13 12:09:07 +09:00
truncate.c	truncate: drop 'oldsize' truncate_pagecache() parameter	2013-09-12 15:38:02 -07:00
util.c	mm: factor commit limit calculation	2013-11-13 12:09:11 +09:00
vmalloc.c	mm: kmemleak: avoid false negatives on vmalloc'ed objects	2013-11-13 12:09:07 +09:00
vmpressure.c	Merge branch 'for-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2013-09-03 18:25:03 -07:00
vmscan.c	mm/vmscan.c: don't forget to free shrinker->nr_deferred	2013-10-16 21:35:52 -07:00
vmstat.c	mm: numa: return the number of base pages altered by protection changes	2013-11-13 12:09:11 +09:00
zbud.c	mm/zbud: fix some trivial typos in comments	2013-09-11 15:57:35 -07:00
zswap.c	mm/zswap: refactor the get/put routines	2013-11-13 12:09:11 +09:00