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Subject[PATCH] memcg: remove the unnecessary MEM_CGROUP_STAT_DATA
Date
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 <baozich@gmail.com>
---
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


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