[PATCH 4/5] balancenuma: check mem node in finding placement

[Hillf Danton]

No point to migrate task from node A to node A.

Signed-off-by: Hillf Danton <dhillf@xxxxxxxxx>
---

--- a/kernel/sched/fair.c	Sat Nov 17 12:25:44 2012
+++ b/kernel/sched/fair.c	Sat Nov 17 12:25:54 2012
@@ -891,6 +891,8 @@ static void task_numa_find_placement(str
 	/* Examine a task on every other node */
 	for_each_online_node(nid) {
 		int cpu;
+		if (nid == this_nid)
+			continue;
 		for_each_cpu_and(cpu, cpumask_of_node(nid), allowed) {
 			struct rq *rq;
 			struct mm_struct *other_mm;
--
--
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