tree 32d279856032fd9d84ebd5d6746b2bd382baaac9
parent d8046582d5ee24448800e71c6933fdb6813aa062
author Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> 1260924430 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1260976807 -0800

memcg: add mem_cgroup_cancel_charge()

There are some places calling both res_counter_uncharge() and css_put() to
cancel the charge and the refcnt we have got by mem_cgroup_tyr_charge().

This patch introduces mem_cgroup_cancel_charge() and call it in those
places.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Reviewed-by: 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>