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Commit 0527b6903b2838e214c895d527806aefd61b3c8f

Authored by Ying Han
Committed by Linus Torvalds
1 parent d66c1ce7df
Exists in master and in 6 other branches imx_3.10.17_1.0.1_ga, imx_3.10.53_1.1.0_ga, imx_3.14.28_1.0.0_ga, smarc-imx_3.10.53_1.1.0_ga, smarc-imx_3.14.28_1.0.0_ga, smarc-l5.0.0_1.0.0-ga

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@google.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Showing 1 changed file with 5 additions and 2 deletions Side-by-side Diff

Documentation/cgroups/memory.txt
Diff comments   View file @ 0527b69
... ... @@ -410,8 +410,11 @@
410 410 cache - # of bytes of page cache memory.
411 411 rss - # of bytes of anonymous and swap cache memory.
412 412 mapped_file - # of bytes of mapped file (includes tmpfs/shmem)
413   -pgpgin - # of pages paged in (equivalent to # of charging events).
414   -pgpgout - # of pages paged out (equivalent to # of uncharging events).
  413 +pgpgin - # of charging events to the memory cgroup. The charging
  414 + event happens each time a page is accounted as either mapped
  415 + anon page(RSS) or cache page(Page Cache) to the cgroup.
  416 +pgpgout - # of uncharging events to the memory cgroup. The uncharging
  417 + event happens each time a page is unaccounted from the cgroup.
415 418 swap - # of bytes of swap usage
416 419 inactive_anon - # of bytes of anonymous memory and swap cache memory on
417 420 LRU list.