[PATCH] memcg: remove the unnecessary MEM_CGROUP_STAT_DATA
From: Chen Baozi <hidden>
Date: 2012-05-25 16:12:24
Also in:
linux-mm, lkml
Subsystem:
control group - memory resource controller (memcg), memory management, the rest · Maintainers:
Johannes Weiner, Michal Hocko, Roman Gushchin, Shakeel Butt, Andrew Morton, Linus Torvalds
Since MEM_CGROUP_ON_MOVE has been removed, it comes to be redudant to hold MEM_CGROUP_STAT_DATA to mark the end of data requires synchronization. Signed-off-by: Chen Baozi <redacted> --- mm/memcontrol.c | 3 +-- 1 files changed, 1 insertions(+), 2 deletions(-)
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index f342778..446ca94 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c@@ -88,7 +88,6 @@ enum mem_cgroup_stat_index { MEM_CGROUP_STAT_RSS, /* # of pages charged as anon rss */ MEM_CGROUP_STAT_FILE_MAPPED, /* # of pages charged as file rss */ MEM_CGROUP_STAT_SWAPOUT, /* # of pages, swapped out */ - MEM_CGROUP_STAT_DATA, /* end of data requires synchronization */ MEM_CGROUP_STAT_NSTATS, };
@@ -2139,7 +2138,7 @@ static void mem_cgroup_drain_pcp_counter(struct mem_cgroup *memcg, int cpu) int i; spin_lock(&memcg->pcp_counter_lock); - for (i = 0; i < MEM_CGROUP_STAT_DATA; i++) { + for (i = 0; i < MEM_CGROUP_STAT_NSTATS; i++) { long x = per_cpu(memcg->stat->count[i], cpu); per_cpu(memcg->stat->count[i], cpu) = 0;
--
1.7.1