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mm: memcg: group swapped-out statistics counter logically

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The counter of currently swapped out pages in a memcg (hierarchy) is
sitting amidst ever-increasing event counters.  Move this item to the
other counters that reflect current state rather than history.

This technically breaks the kernel ABI, but hopefully nobody relies on the
order of items in memory.stat.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Ying Han <yinghan@google.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Johannes Weiner 2012-05-29 15:07:07 -07:00 committed by Linus Torvalds
parent 13114716c7
commit fad02c2de0
1 changed files with 2 additions and 2 deletions
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4
mm/memcontrol.c
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@ -4043,9 +4043,9 @@ enum {
MCS_CACHE, MCS_CACHE,
MCS_RSS, MCS_RSS,
MCS_FILE_MAPPED, MCS_FILE_MAPPED,
MCS_SWAP,
MCS_PGPGIN, MCS_PGPGIN,
MCS_PGPGOUT, MCS_PGPGOUT,
MCS_SWAP,
MCS_PGFAULT, MCS_PGFAULT,
MCS_PGMAJFAULT, MCS_PGMAJFAULT,
MCS_INACTIVE_ANON, MCS_INACTIVE_ANON,
@ -4064,9 +4064,9 @@ static const char *memcg_stat_strings[NR_MCS_STAT] = {
"cache", "cache",
"rss", "rss",
"mapped_file", "mapped_file",
"swap",
"pgpgin", "pgpgin",
"pgpgout", "pgpgout",
"swap",
"pgfault", "pgfault",
"pgmajfault", "pgmajfault",
"inactive_anon", "inactive_anon",