In the rare event a task gets its affinity changed off the current CPU, it
should only resched another CPU if it is not being deactivated.

-ck
---
 kernel/sched/bfs.c |    7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

Index: linux-3.7-bfs/kernel/sched/bfs.c
===================================================================
--- linux-3.7-bfs.orig/kernel/sched/bfs.c	2013-01-29 01:22:37.207770272 +1100
+++ linux-3.7-bfs/kernel/sched/bfs.c	2013-01-29 01:22:37.621765097 +1100
@@ -3292,9 +3292,10 @@ need_resched:
 		prev->last_ran = rq->clock;
 
 		/* Task changed affinity off this CPU */
-		if (needs_other_cpu(prev, cpu))
-			resched_suitable_idle(prev);
-		else if (!deactivate) {
+		if (needs_other_cpu(prev, cpu)) {
+			if (!deactivate)
+				resched_suitable_idle(prev);
+		} else if (!deactivate) {
 			if (!queued_notrunning()) {
 				/*
 				* We now know prev is the only thing that is