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authorMel Gorman <mgorman@suse.de>2013-10-07 11:28:58 +0100
committerIngo Molnar <mingo@kernel.org>2013-10-09 12:40:23 +0200
commit688b7585d16ab57a17aa4422a3b290b3a55fa679 (patch)
tree2a016719cf05336bf49db699a9268dae6b99310f /include/linux/sched.h
parentsched/numa: Track NUMA hinting faults on per-node basis (diff)
downloadlinux-dev-688b7585d16ab57a17aa4422a3b290b3a55fa679.tar.xz
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sched/numa: Select a preferred node with the most numa hinting faults
This patch selects a preferred node for a task to run on based on the NUMA hinting faults. This information is later used to migrate tasks towards the node during balancing. Signed-off-by: Mel Gorman <mgorman@suse.de> Reviewed-by: Rik van Riel <riel@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1381141781-10992-21-git-send-email-mgorman@suse.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/sched.h')
-rw-r--r--include/linux/sched.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h
index a810e95bca2b..b1fc75e7187b 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1344,6 +1344,7 @@ struct task_struct {
struct callback_head numa_work;
unsigned long *numa_faults;
+ int numa_preferred_nid;
#endif /* CONFIG_NUMA_BALANCING */
struct rcu_head rcu;