Merge branch 'linus' into sched/locking

Merge reason: Pick up this upstream commit:

  6631e635c65d: block: don't flush plugged IO on forced preemtion scheduling

As it modifies the scheduler and we'll queue up dependent patches.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 10 insertions, 10 deletions

diff --git a/kernel/sched.c b/kernel/sched.c
index 4801363..a187c3f 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -4111,20 +4111,20 @@ need_resched:
 					try_to_wake_up_local(to_wakeup);
 			}
 			deactivate_task(rq, prev, DEQUEUE_SLEEP);
+
+			/*
+			 * If we are going to sleep and we have plugged IO queued, make
+			 * sure to submit it to avoid deadlocks.
+			 */
+			if (blk_needs_flush_plug(prev)) {
+				raw_spin_unlock(&rq->lock);
+				blk_flush_plug(prev);
+				raw_spin_lock(&rq->lock);
+			}
 		}
 		switch_count = &prev->nvcsw;
 	}
 
-	/*
-	 * If we are going to sleep and we have plugged IO queued, make
-	 * sure to submit it to avoid deadlocks.
-	 */
-	if (prev->state != TASK_RUNNING && blk_needs_flush_plug(prev)) {
-		raw_spin_unlock(&rq->lock);
-		blk_flush_plug(prev);
-		raw_spin_lock(&rq->lock);
-	}
-
 	pre_schedule(rq, prev);
 
 	if (unlikely(!rq->nr_running))