From: Greg Thelen <gthelen@google.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>,
Michal Hocko <mhocko@suse.cz>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Greg Thelen <gthelen@google.com>
Subject: [PATCH] memcg: add BUILD_BUG_ON() for string tables
Date: Mon, 12 Jan 2015 10:54:23 -0800 [thread overview]
Message-ID: <1421088863-14270-1-git-send-email-gthelen@google.com> (raw)
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>
---
mm/memcontrol.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index ef91e856c7e4..8d1ca6c55480 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -3699,6 +3699,10 @@ 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++) {
--
2.2.0.rc0.207.ga3a616c
--
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next reply other threads:[~2015-01-12 18:54 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-12 18:54 Greg Thelen [this message]
2015-01-12 22:13 ` Johannes Weiner
2015-01-13 8:15 ` Michal Hocko
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