tree f0b91eeae069fe92906db7ad9d0d8a8003f05db4
parent d8c37c480678ebe09bc570f33e085e28049db035
author Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> 1332372868 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1332377702 -0700

memcg: avoid THP split in task migration

Currently we can't do task migration among memory cgroups without THP
split, which means processes heavily using THP experience large overhead
in task migration.  This patch introduces the code for moving charge of
THP and makes THP more valuable.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Acked-by: Hillf Danton <dhillf@gmail.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: David Rientjes <rientjes@google.com>
Cc: 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>