From: Goldwyn Rodrigues <rgoldwyn@xxxxxxxx>
I/O should bail out if any value for delay is set.
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@xxxxxxxx>
---
drivers/md/dm-delay.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/md/dm-delay.c b/drivers/md/dm-delay.c
index ae3158795d26..97da97c3c039 100644
--- a/drivers/md/dm-delay.c
+++ b/drivers/md/dm-delay.c
@@ -240,6 +240,10 @@ static int delay_bio(struct delay_c *dc, int delay, struct bio *bio)
if (!delay || !atomic_read(&dc->may_delay))
return DM_MAPIO_REMAPPED;
+ if (bio->bi_opf & REQ_NOWAIT) {
+ bio_wouldblock_error(bio);
+ return DM_MAPIO_SUBMITTED;
+ }
delayed = dm_per_bio_data(bio, sizeof(struct dm_delay_info));
delayed->context = dc;
--
2.12.3
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