Commit 6104621d authored by Johannes Weiner's avatar Johannes Weiner Committed by Linus Torvalds

mm: memcg: remove obsolete statistics array boundary enum item

MEM_CGROUP_STAT_DATA is a leftover from when item counters were living in
the same array as ever-increasing event counters.  It's no longer needed,
use MEM_CGROUP_STAT_NSTATS to iterate over the stat array.
Signed-off-by: default avatarJohannes Weiner <hannes@cmpxchg.org>
Acked-by: default avatarMichal Hocko <mhocko@suse.cz>
Acked-by: default avatarKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Ying Han <yinghan@google.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 04eac7ff
...@@ -88,7 +88,6 @@ enum mem_cgroup_stat_index { ...@@ -88,7 +88,6 @@ enum mem_cgroup_stat_index {
MEM_CGROUP_STAT_RSS, /* # of pages charged as anon rss */ MEM_CGROUP_STAT_RSS, /* # of pages charged as anon rss */
MEM_CGROUP_STAT_FILE_MAPPED, /* # of pages charged as file rss */ MEM_CGROUP_STAT_FILE_MAPPED, /* # of pages charged as file rss */
MEM_CGROUP_STAT_SWAPOUT, /* # of pages, swapped out */ MEM_CGROUP_STAT_SWAPOUT, /* # of pages, swapped out */
MEM_CGROUP_STAT_DATA, /* end of data requires synchronization */
MEM_CGROUP_STAT_NSTATS, MEM_CGROUP_STAT_NSTATS,
}; };
...@@ -2135,7 +2134,7 @@ static void mem_cgroup_drain_pcp_counter(struct mem_cgroup *memcg, int cpu) ...@@ -2135,7 +2134,7 @@ static void mem_cgroup_drain_pcp_counter(struct mem_cgroup *memcg, int cpu)
int i; int i;
spin_lock(&memcg->pcp_counter_lock); 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); long x = per_cpu(memcg->stat->count[i], cpu);
per_cpu(memcg->stat->count[i], cpu) = 0; per_cpu(memcg->stat->count[i], cpu) = 0;
......
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