X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=kernel%2Fsched_rt.c;h=0a6d2e516420516cb1d0c35a5345db1f356f71ab;hb=6fa46fa526f2cab9ce21fa5e39501553a40d196d;hp=76e828517541b742c960de0b48bd503ea88f99d6;hpb=810b38179e9e4d4f57b4b733767bb08f8291a965;p=safe%2Fjmp%2Flinux-2.6

diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
index 76e8285..0a6d2e5 100644
--- a/kernel/sched_rt.c
+++ b/kernel/sched_rt.c
@@ -1107,9 +1107,11 @@ static void prio_changed_rt(struct rq *rq, struct task_struct *p,
 			pull_rt_task(rq);
 		/*
 		 * If there's a higher priority task waiting to run
-		 * then reschedule.
+		 * then reschedule. Note, the above pull_rt_task
+		 * can release the rq lock and p could migrate.
+		 * Only reschedule if p is still on the same runqueue.
 		 */
-		if (p->prio > rq->rt.highest_prio)
+		if (p->prio > rq->rt.highest_prio && rq->curr == p)
 			resched_task(p);
 #else
 		/* For UP simply resched on drop of prio */