commit 6d61ef409d6ba168972f7c2f8c35baaade636a58
author Balbir Singh <balbir@linux.vnet.ibm.com> Wed Jan 07 18:08:06 2009 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> Thu Jan 08 08:31:06 2009 -0800
tree b43ef8d2426ced40bd3ed4741ea8523e4496da23
parent 28dbc4b6a01fb579a9441c7b81e3d3413dc452df

memcg: memory cgroup hierarchical reclaim

This patch introduces hierarchical reclaim.  When an ancestor goes over
its limit, the charging routine points to the parent that is above its
limit.  The reclaim process then starts from the last scanned child of the
ancestor and reclaims until the ancestor goes below its limit.

[akpm@linux-foundation.org: coding-style fixes]
[d-nishimura@mtf.biglobe.ne.jp: mem_cgroup_from_res_counter should handle both mem->res and mem->memsw]
Signed-off-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Cc: Paul Menage <menage@google.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Pavel Emelianov <xemul@openvz.org>
Cc: Dhaval Giani <dhaval@linux.vnet.ibm.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>