block core handles REQ_FUA by its flush state machine, so
won't do it in loop explicitly.
Signed-off-by: Ming Lei <ming....@canonical.com>
---
drivers/block/loop.c | 14 +++-----------
1 file changed, 3 insertions(+), 11 deletions(-)
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index d7cdb60..74ad96b 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -457,23 +457,15 @@ static int do_req_filebacked(struct loop_device *lo,
struct request *rq)
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;
}
--
1.7.9.5
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