]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
memcg: make oom less frequently
authorDaisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Thu, 15 Jan 2009 21:51:14 +0000 (13:51 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Fri, 16 Jan 2009 00:39:39 +0000 (16:39 -0800)
commit4d1c627389c8ba6d9e703208567ffcdbd356f682
tree535720830c6f547e2d544d1dd02d23bae41da45e
parentc268e9946d7dc30ac4e55cdc3f43c8af1ae8153c
memcg: make oom less frequently

In previous implementation, mem_cgroup_try_charge checked the return
value of mem_cgroup_try_to_free_pages, and just retried if some pages
had been reclaimed.
But now, try_charge(and mem_cgroup_hierarchical_reclaim called from it)
only checks whether the usage is less than the limit.

This patch tries to change the behavior as before to cause oom less
frequently.

Signed-off-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Paul Menage <menage@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/memcontrol.c