The patch titled Subject: memcg: avoid dangling reference count in creation failure. has been removed from the -mm tree. Its filename was memcg-avoid-dangling-reference-count-in-creation-failure.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: Glauber Costa <glommer@xxxxxxxxxxxxx> Subject: memcg: avoid dangling reference count in creation failure. When use_hierarchy is enabled, we acquire an extra reference count in our parent during cgroup creation. We don't release it, though, if any failure exist in the creation process. Signed-off-by: Glauber Costa <glommer@xxxxxxxxxxxxx> Reported-by: Michal Hocko <mhocko@xxxxxxx> Acked-by: Michal Hocko <mhocko@xxxxxxx> Cc: Tejun Heo <tj@xxxxxxxxxx> Cc: Hiroyuki Kamezawa <kamezawa.hiroyuki@xxxxxxxxx> Cc: Johannes Weiner <hannes@xxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/memcontrol.c | 2 ++ 1 file changed, 2 insertions(+) diff -puN mm/memcontrol.c~memcg-avoid-dangling-reference-count-in-creation-failure mm/memcontrol.c --- a/mm/memcontrol.c~memcg-avoid-dangling-reference-count-in-creation-failure +++ a/mm/memcontrol.c @@ -6196,6 +6196,8 @@ mem_cgroup_css_online(struct cgroup *con * call __mem_cgroup_free, so return directly */ mem_cgroup_put(memcg); + if (parent->use_hierarchy) + mem_cgroup_put(parent); } return error; } _ Patches currently in -mm which might be from glommer@xxxxxxxxxxxxx are origin.patch linux-next.patch slub-correctly-bootstrap-boot-caches.patch memcg-debugging-facility-to-access-dangling-memcgs.patch memcg-debugging-facility-to-access-dangling-memcgs-fix.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html