|author||Ying Han <email@example.com>||2012-04-12 12:49:10 -0700|
|committer||Linus Torvalds <firstname.lastname@example.org>||2012-04-12 13:12:11 -0700|
memcg: fix up documentation on global LRU
In v3.3-rc1, the global LRU was removed in commit 925b7673cce3 ("mm: make per-memcg LRU lists exclusive"). The patch fixes up the memcg docs. I left the swap session to someone who has better understanding of 'memory+swap'. Signed-off-by: Ying Han <email@example.com> Acked-by: Michal Hocko <firstname.lastname@example.org> Acked-by: KAMEZAWA Hiroyuki <email@example.com> Signed-off-by: Andrew Morton <firstname.lastname@example.org> Signed-off-by: Linus Torvalds <email@example.com>
Diffstat (limited to 'Documentation')
1 files changed, 2 insertions, 3 deletions
diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt
index 4c95c0034a4..9b1067afb22 100644
@@ -34,8 +34,7 @@ Current Status: linux-2.6.34-mmotm(development version of 2010/April)
- accounting anonymous pages, file caches, swap caches usage and limiting them.
- - private LRU and reclaim routine. (system's global LRU and private LRU
- work independently from each other)
+ - pages are linked to per-memcg LRU exclusively, and there is no global LRU.
- optionally, memory+swap usage can be accounted and limited.
- hierarchical accounting
- soft limit
@@ -154,7 +153,7 @@ updated. page_cgroup has its own LRU on cgroup.
2.2.1 Accounting details
All mapped anon pages (RSS) and cache pages (Page Cache) are accounted.
-Some pages which are never reclaimable and will not be on the global LRU
+Some pages which are never reclaimable and will not be on the LRU
are not accounted. We just account pages under usual VM management.
RSS pages are accounted at page_fault unless they've already been accounted