mm: memcontrol: drop superfluous entry in the per-memcg stats array
authorJohannes Weiner <hannes@cmpxchg.org>
Wed, 3 Feb 2016 00:57:38 +0000 (16:57 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Wed, 3 Feb 2016 16:28:43 +0000 (08:28 -0800)
MEM_CGROUP_STAT_NSTATS is just a delimiter for cgroup1 statistics, not
an actual array entry.  Reuse it for the first cgroup2 stat entry, like
in the event array.

Fixes: b2807f07f4f8 ("mm: memcontrol: add "sock" to cgroup2 memory.stat")
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Vladimir Davydov <vdavydov@virtuozzo.com>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
include/linux/memcontrol.h

index 9ae48d4aeb5ec7d6fafa9528c79f65f62a091ed3..792c8981e63365b06a03e7feda7e647eafb533c0 100644 (file)
@@ -51,7 +51,7 @@ enum mem_cgroup_stat_index {
        MEM_CGROUP_STAT_SWAP,           /* # of pages, swapped out */
        MEM_CGROUP_STAT_NSTATS,
        /* default hierarchy stats */
-       MEMCG_SOCK,
+       MEMCG_SOCK = MEM_CGROUP_STAT_NSTATS,
        MEMCG_NR_STAT,
 };