1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 78ae3dbf2de1..0c9f8793c87e 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -666,6 +666,9 @@ static inline bool rq_mergeable(struct request *rq)
         if (rq->cmd_type != REQ_TYPE_FS)
                 return false;
 
+        if (req_op(rq) == REQ_OP_FLUSH)
+                return false;
+
         if (rq->cmd_flags & REQ_NOMERGE_FLAGS)
                 return false;