From: Glauber Costa <glom...@openvz.org>
Those structures are only used for memcgs that are effectively using
kmemcg. However, in a later patch I intend to use scan that list
inconditionally (list empty meaning no kmem caches present), which
simplifies the code a lot.
So move the initialization to early kmem creation.
Signed-off-by: Glauber Costa <glom...@openvz.org>
Cc: Dave Chinner <dchin...@redhat.com>
Cc: Mel Gorman <mgor...@suse.de>
Cc: Rik van Riel <r...@redhat.com>
Cc: Johannes Weiner <han...@cmpxchg.org>
Cc: Michal Hocko <mho...@suse.cz>
Cc: Hugh Dickins <hu...@google.com>
Cc: Kamezawa Hiroyuki <kamezawa.hir...@jp.fujitsu.com>
Cc: Andrew Morton <a...@linux-foundation.org>
---
mm/memcontrol.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 41c216a..5104d1f 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -3120,8 +3120,6 @@ int memcg_update_cache_sizes(struct mem_cgroup *memcg)
}
memcg->kmemcg_id = num;
- INIT_LIST_HEAD(&memcg->memcg_slab_caches);
- mutex_init(&memcg->slab_caches_mutex);
return 0;
}
@@ -5916,6 +5914,8 @@ static int memcg_init_kmem(struct mem_cgroup *memcg,
struct cgroup_subsys *ss)
{
int ret;
+ INIT_LIST_HEAD(&memcg->memcg_slab_caches);
+ mutex_init(&memcg->slab_caches_mutex);
memcg->kmemcg_id = -1;
ret = memcg_propagate_kmem(memcg);
if (ret)
--
1.7.10.4
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