block: loop: don't handle REQ_FUA explicitly
block core handles REQ_FUA by its flush state machine, so
won't do it in loop explicitly.
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 018af27..185a86d 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -459,23 +459,15 @@
pos = ((loff_t) blk_rq_pos(rq) << 9) + lo->lo_offset;
if (rq->cmd_flags & REQ_WRITE) {
-
if (rq->cmd_flags & REQ_FLUSH)
ret = lo_req_flush(lo, rq);
-
- if (rq->cmd_flags & REQ_DISCARD) {
+ else if (rq->cmd_flags & REQ_DISCARD)
ret = lo_discard(lo, rq, pos);
- goto out;
- }
-
- ret = lo_send(lo, rq, pos);
-
- if ((rq->cmd_flags & REQ_FUA) && !ret)
- ret = lo_req_flush(lo, rq);
+ else
+ ret = lo_send(lo, rq, pos);
} else
ret = lo_receive(lo, rq, lo->lo_blocksize, pos);
-out:
return ret;
}