https://github.com/torvalds/linux
Revision 615d66c37c755c49ce022c9e5ac0875d27d2603d authored by Vladimir Davydov on 11 August 2016, 22:33:03 UTC, committed by Linus Torvalds on 11 August 2016, 23:58:13 UTC
Since commit 73f576c04b94 ("mm: memcontrol: fix cgroup creation failure
after many small jobs") swap entries do not pin memcg->css.refcnt
directly.  Instead, they pin memcg->id.ref.  So we should adjust the
reference counters accordingly when moving swap charges between cgroups.

Fixes: 73f576c04b941 ("mm: memcontrol: fix cgroup creation failure after many small jobs")
Link: http://lkml.kernel.org/r/9ce297c64954a42dc90b543bc76106c4a94f07e8.1470219853.git.vdavydov@virtuozzo.com
Signed-off-by: Vladimir Davydov <vdavydov@virtuozzo.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: <stable@vger.kernel.org>	[3.19+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 1f47b61
History
Tip revision: 615d66c37c755c49ce022c9e5ac0875d27d2603d authored by Vladimir Davydov on 11 August 2016, 22:33:03 UTC
mm: memcontrol: fix memcg id ref counter on swap charge move
Tip revision: 615d66c
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