linux/Documentation/controllers
KAMEZAWA Hiroyuki 5b4e655e94 memcg: avoid accounting special pages
There are not-on-LRU pages which can be mapped and they are not worth to
be accounted.  (becasue we can't shrink them and need dirty codes to
handle specical case) We'd like to make use of usual objrmap/radix-tree's
protcol and don't want to account out-of-vm's control pages.

When special_mapping_fault() is called, page->mapping is tend to be NULL
and it's charged as Anonymous page.  insert_page() also handles some
special pages from drivers.

This patch is for avoiding to account special pages.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-20 08:52:38 -07:00
..
devices.txt devcgroup: fix odd behaviour when writing 'a' to devices.allow 2008-07-04 10:40:10 -07:00
memory.txt memcg: avoid accounting special pages 2008-10-20 08:52:38 -07:00
resource_counter.txt memcgroups: add a document describing the resource counter abstraction 2008-04-29 08:06:10 -07:00