The patch titled
Subject: mm-memcontrol-fix-swap-counter-leak-on-swapout-from-offline-cgroup-fix
has been added to the -mm tree. Its filename is
mm-memcontrol-fix-swap-counter-leak-on-swapout-from-offline-cgroup-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-memcontrol-fix-swap-counter-leak-on-swapout-from-offline-cgroup-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-memcontrol-fix-swap-counter-leak-on-swapout-from-offline-cgroup-fix.patch
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------------------------------------------------------
From: Vladimir Davydov <vdavydov@xxxxxxxxxxxxx>
Subject: mm-memcontrol-fix-swap-counter-leak-on-swapout-from-offline-cgroup-fix
use WARN_ON_ONCE() in mem_cgroup_id_get_online()
Link: http://lkml.kernel.org/r/20160803123445.GJ13263@esperanza
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memcontrol.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/memcontrol.c~mm-memcontrol-fix-swap-counter-leak-on-swapout-from-offline-cgroup-fix mm/memcontrol.c
--- a/mm/memcontrol.c~mm-memcontrol-fix-swap-counter-leak-on-swapout-from-offline-cgroup-fix
+++ a/mm/memcontrol.c
@@ -4089,7 +4089,7 @@ static struct mem_cgroup *mem_cgroup_id_
* The root cgroup cannot be destroyed, so it's refcount must
* always be >= 1.
*/
- if (memcg == root_mem_cgroup) {
+ if (WARN_ON_ONCE(memcg == root_mem_cgroup)) {
VM_BUG_ON(1);
break;
}
_
Patches currently in -mm which might be from vdavydov@xxxxxxxxxxxxx are
mm-memcontrol-fix-swap-counter-leak-on-swapout-from-offline-cgroup.patch
mm-memcontrol-fix-swap-counter-leak-on-swapout-from-offline-cgroup-fix.patch
mm-memcontrol-fix-memcg-id-ref-counter-on-swap-charge-move.patch
mm-oom-deduplicate-victim-selection-code-for-memcg-and-global-oom.patch
mm-memcontrol-add-sanity-checks-for-memcg-idref-on-get-put.patch
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