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authorNaoya Horiguchi <n-horiguchi@ah.jp.nec.com>2012-03-21 16:34:28 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-21 17:55:02 -0700
commit12724850e8064f64b6223d26d78c0597c742c65a (patch)
treef0b91eeae069fe92906db7ad9d0d8a8003f05db4 /mm/mprotect.c
parentd8c37c480678ebe09bc570f33e085e28049db035 (diff)
downloadop-kernel-dev-12724850e8064f64b6223d26d78c0597c742c65a.zip
op-kernel-dev-12724850e8064f64b6223d26d78c0597c742c65a.tar.gz
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>
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