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authorVladimir Davydov <vdavydov@virtuozzo.com>2016-03-17 14:18:42 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-03-17 15:09:34 -0700
commit0a6b76dd23fa08c5fd7b68acdb55018a37afd4aa (patch)
treec2e94f95e0217dedaca710315500a9495fb021a6 /mm/memcontrol.c
parentcdcbb72ebfec52373e57092eccaadd5a6e261c3e (diff)
downloadop-kernel-dev-0a6b76dd23fa08c5fd7b68acdb55018a37afd4aa.zip
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mm: workingset: make shadow node shrinker memcg aware
Workingset code was recently made memcg aware, but shadow node shrinker is still global. As a result, one small cgroup can consume all memory available for shadow nodes, possibly hurting other cgroups by reclaiming their shadow nodes, even though reclaim distances stored in its shadow nodes have no effect. To avoid this, we need to make shadow node shrinker memcg aware. Signed-off-by: Vladimir Davydov <vdavydov@virtuozzo.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memcontrol.c')
-rw-r--r--mm/memcontrol.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 341bf86..ae8b81c 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -638,9 +638,8 @@ static void mem_cgroup_charge_statistics(struct mem_cgroup *memcg,
__this_cpu_add(memcg->stat->nr_page_events, nr_pages);
}
-static unsigned long mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg,
- int nid,
- unsigned int lru_mask)
+unsigned long mem_cgroup_node_nr_lru_pages(struct mem_cgroup *memcg,
+ int nid, unsigned int lru_mask)
{
unsigned long nr = 0;
int zid;
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