From: Rik van Riel <riel@redhat.com>
Date: Mon, 23 Jun 2014 15:41:29 +0000 (-0400)
Subject: sched/numa: Use group's max nid as task's preferred nid
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~177^2~22
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f0b8a4afd6a8c500161e45065a91738b490bf5ae;p=pandora-kernel.git

sched/numa: Use group's max nid as task's preferred nid

From task_numa_placement, always try to consolidate the tasks
in a group on the group's top nid.

In case this task is part of a group that is interleaved over
multiple nodes, task_numa_migrate will set the task's preferred
nid to the best node it could find for the task, so this patch
will cause at most one run through task_numa_migrate.

Signed-off-by: Rik van Riel <riel@redhat.com>
Cc: mgorman@suse.de
Cc: chegu_vinod@hp.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1403538095-31256-2-git-send-email-riel@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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