blk-mq: avoid infinite recursion with the FUA flag

[mirror_ubuntu-bionic-kernel.git] / block / blk-exec.c

diff --git a/block/blk-exec.c b/block/blk-exec.c
index f4d27b12c90b2778182cc3c0cf5a6cd09e2b0310..9924725fa50dcac5563d2654a24df0d85cfada7a 100644 (file)
--- a/block/blk-exec.c
+++ b/block/blk-exec.c
@@ -56,6 +56,7 @@ void blk_execute_rq_nowait(struct request_queue *q, struct gendisk *bd_disk,
        bool is_pm_resume;
 
        WARN_ON(irqs_disabled());
+       WARN_ON(rq->cmd_type == REQ_TYPE_FS);
 
        rq->rq_disk = bd_disk;
        rq->end_io = done;