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authorGreg Thelen <gthelen@google.com>2015-02-11 15:25:58 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-02-11 17:06:02 -0800
commit0ca44b148ef2596882742dc03ef1c3adcd40f03b (patch)
tree5bd974396d0348cb6fd03e588302c8cc50716c98
parent90cbc2508827e1e15dca23361c33cc26dd2b9e99 (diff)
memcg: add BUILD_BUG_ON() for string tables
Use BUILD_BUG_ON() to compile assert that memcg string tables are in sync with corresponding enums. There aren't currently any issues with these tables. This is just defensive. Signed-off-by: Greg Thelen <gthelen@google.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Acked-by: Michal Hocko <mhocko@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--mm/memcontrol.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 6187ca4d5dc2..dc5c4cd0afdf 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -3568,6 +3568,10 @@ static int memcg_stat_show(struct seq_file *m, void *v)
struct mem_cgroup *mi;
unsigned int i;
+ BUILD_BUG_ON(ARRAY_SIZE(mem_cgroup_stat_names) !=
+ MEM_CGROUP_STAT_NSTATS);
+ BUILD_BUG_ON(ARRAY_SIZE(mem_cgroup_events_names) !=
+ MEM_CGROUP_EVENTS_NSTATS);
BUILD_BUG_ON(ARRAY_SIZE(mem_cgroup_lru_names) != NR_LRU_LISTS);
for (i = 0; i < MEM_CGROUP_STAT_NSTATS; i++) {