From 0ca44b148ef2596882742dc03ef1c3adcd40f03b Mon Sep 17 00:00:00 2001 From: Greg Thelen Date: Wed, 11 Feb 2015 15:25:58 -0800 Subject: [PATCH] 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 Acked-by: Johannes Weiner Acked-by: Michal Hocko Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memcontrol.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 6187ca4..dc5c4cd 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++) { -- 2.7.4