mm: workingset: make shadow node shrinker memcg aware
authorVladimir Davydov <vdavydov@virtuozzo.com>
Thu, 17 Mar 2016 21:18:42 +0000 (14:18 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 17 Mar 2016 22:09:34 +0000 (15:09 -0700)
commit0a6b76dd23fa08c5fd7b68acdb55018a37afd4aa
treec2e94f95e0217dedaca710315500a9495fb021a6
parentcdcbb72ebfec52373e57092eccaadd5a6e261c3e
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>
include/linux/memcontrol.h
mm/memcontrol.c
mm/workingset.c