The patch titled
memcg: simple stats for memory resource controller
has been added to the -mm tree. Its filename is
simple-stats-for-memory-resource-controller.patch
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------------------------------------------------------
Subject: memcg: simple stats for memory resource controller
From: Balaji Rao <balajirrao@xxxxxxxxx>
Implement trivial statistics for the memory resource controller.
Signed-off-by: Balaji Rao <balajirrao@xxxxxxxxx>
Cc: Balbir Singh <balbir@xxxxxxxxxxxxxxxxxx>
Cc: Dhaval Giani <dhaval@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memcontrol.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff -puN mm/memcontrol.c~simple-stats-for-memory-resource-controller mm/memcontrol.c
--- a/mm/memcontrol.c~simple-stats-for-memory-resource-controller
+++ a/mm/memcontrol.c
@@ -48,6 +48,8 @@ enum mem_cgroup_stat_index {
*/
MEM_CGROUP_STAT_CACHE, /* # of pages charged as cache */
MEM_CGROUP_STAT_RSS, /* # of pages charged as rss */
+ MEM_CGROUP_STAT_PGPGIN_COUNT, /* # of pages paged in */
+ MEM_CGROUP_STAT_PGPGOUT_COUNT, /* # of pages paged out */
MEM_CGROUP_STAT_NSTATS,
};
@@ -199,6 +201,13 @@ static void mem_cgroup_charge_statistics
__mem_cgroup_stat_add_safe(stat, MEM_CGROUP_STAT_CACHE, val);
else
__mem_cgroup_stat_add_safe(stat, MEM_CGROUP_STAT_RSS, val);
+
+ if (charge)
+ __mem_cgroup_stat_add_safe(stat,
+ MEM_CGROUP_STAT_PGPGIN_COUNT, 1);
+ else
+ __mem_cgroup_stat_add_safe(stat,
+ MEM_CGROUP_STAT_PGPGOUT_COUNT, 1);
}
static struct mem_cgroup_per_zone *
@@ -884,6 +893,8 @@ static const struct mem_cgroup_stat_desc
} mem_cgroup_stat_desc[] = {
[MEM_CGROUP_STAT_CACHE] = { "cache", PAGE_SIZE, },
[MEM_CGROUP_STAT_RSS] = { "rss", PAGE_SIZE, },
+ [MEM_CGROUP_STAT_PGPGIN_COUNT] = {"pgpgin", 1, },
+ [MEM_CGROUP_STAT_PGPGOUT_COUNT] = {"pgpgout", 1, },
};
static int mem_control_stat_show(struct cgroup *cont, struct cftype *cft,
_
Patches currently in -mm which might be from balajirrao@xxxxxxxxx are
simple-stats-for-memory-resource-controller.patch
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