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authorVladimir Davydov <vdavydov@parallels.com>2014-04-03 14:47:19 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-04-03 16:20:58 -0700
commit99120b772b52853f9a2b829a21dd44d9b20558f1 (patch)
tree74046a072f579357e6d4e4f3f60fff46e55e2e12 /mm
parent62572e29bc530b38921ef6059088b4788a9832a5 (diff)
downloadop-kernel-dev-99120b772b52853f9a2b829a21dd44d9b20558f1.zip
op-kernel-dev-99120b772b52853f9a2b829a21dd44d9b20558f1.tar.gz
mm: vmscan: respect NUMA policy mask when shrinking slab on direct reclaim
When direct reclaim is executed by a process bound to a set of NUMA nodes, we should scan only those nodes when possible, but currently we will scan kmem from all online nodes even if the kmem shrinker is NUMA aware. That said, binding a process to a particular NUMA node won't prevent it from shrinking inode/dentry caches from other nodes, which is not good. Fix this. Signed-off-by: Vladimir Davydov <vdavydov@parallels.com> Cc: Mel Gorman <mgorman@suse.de> Cc: Michal Hocko <mhocko@suse.cz> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Rik van Riel <riel@redhat.com> Cc: Dave Chinner <dchinner@redhat.com> Cc: Glauber Costa <glommer@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/vmscan.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c
index a9c74b4..4acee0f 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2425,8 +2425,8 @@ static unsigned long do_try_to_free_pages(struct zonelist *zonelist,
unsigned long lru_pages = 0;
nodes_clear(shrink->nodes_to_scan);
- for_each_zone_zonelist(zone, z, zonelist,
- gfp_zone(sc->gfp_mask)) {
+ for_each_zone_zonelist_nodemask(zone, z, zonelist,
+ gfp_zone(sc->gfp_mask), sc->nodemask) {
if (!cpuset_zone_allowed_hardwall(zone, GFP_KERNEL))
continue;
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