Merge branch 'for-linus' into for-3.2/core

2 files changed, 3 insertions, 2 deletions

diff --git a/block/blk-core.c b/block/blk-core.c
index da697936d220..f65871116404 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1769,6 +1769,8 @@ int blk_insert_cloned_request(struct request_queue *q, struct request *rq)
                 where = ELEVATOR_INSERT_FLUSH;
 
         add_acct_request(q, rq, where);
+        if (where == ELEVATOR_INSERT_FLUSH)
+                __blk_run_queue(q);
         spin_unlock_irqrestore(q->queue_lock, flags);
 
         return 0;
diff --git a/block/blk-flush.c b/block/blk-flush.c
index 491eb30a242d..720ad607ff91 100644
--- a/block/blk-flush.c
+++ b/block/blk-flush.c
@@ -320,7 +320,7 @@ void blk_insert_flush(struct request *rq)
                 return;
         }
 
-        BUG_ON(!rq->bio || rq->bio != rq->biotail);
+        BUG_ON(rq->bio != rq->biotail); /*assumes zero or single bio rq */
 
         /*
          * If there's data but flush is not necessary, the request can be
@@ -330,7 +330,6 @@ void blk_insert_flush(struct request *rq)
         if ((policy & REQ_FSEQ_DATA) &&
             !(policy & (REQ_FSEQ_PREFLUSH | REQ_FSEQ_POSTFLUSH))) {
                 list_add_tail(&rq->queuelist, &q->queue_head);
-                blk_run_queue_async(q);
                 return;
         }