The patch titled
Subject: memcg: fix pgpgin/pgpgout documentation
has been removed from the -mm tree. Its filename was
memcg-fix-pgpgin-pgpgout-documentation.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
From: Ying Han <yinghan@xxxxxxxxxx>
Subject: memcg: fix pgpgin/pgpgout documentation
The two memcg stats pgpgin/pgpgout have different meaning than the ones in
vmstat, which indicates that we picked a bad naming for them. It might be
late to change the stat name, but better documentation is always helpful.
Signed-off-by: Ying Han <yinghan@xxxxxxxxxx>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/cgroups/memory.txt | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff -puN Documentation/cgroups/memory.txt~memcg-fix-pgpgin-pgpgout-documentation Documentation/cgroups/memory.txt
--- a/Documentation/cgroups/memory.txt~memcg-fix-pgpgin-pgpgout-documentation
+++ a/Documentation/cgroups/memory.txt
@@ -410,8 +410,11 @@ memory.stat file includes following stat
cache - # of bytes of page cache memory.
rss - # of bytes of anonymous and swap cache memory.
mapped_file - # of bytes of mapped file (includes tmpfs/shmem)
-pgpgin - # of pages paged in (equivalent to # of charging events).
-pgpgout - # of pages paged out (equivalent to # of uncharging events).
+pgpgin - # of charging events to the memory cgroup. The charging
+ event happens each time a page is accounted as either mapped
+ anon page(RSS) or cache page(Page Cache) to the cgroup.
+pgpgout - # of uncharging events to the memory cgroup. The uncharging
+ event happens each time a page is unaccounted from the cgroup.
swap - # of bytes of swap usage
inactive_anon - # of bytes of anonymous memory and swap cache memory on
LRU list.
_
Patches currently in -mm which might be from yinghan@xxxxxxxxxx are
origin.patch
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