From: Goldwyn Rodrigues <rgoldwyn@xxxxxxxx>
If the I/O would block because the devices are syncing, bail.
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@xxxxxxxx>
---
drivers/md/dm-raid1.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index a4fbd911d566..446ac581627f 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -1219,6 +1219,11 @@ static int mirror_map(struct dm_target *ti, struct bio *bio)
if (bio->bi_opf & REQ_RAHEAD)
return DM_MAPIO_KILL;
+ if (bio->bi_opf & REQ_NOWAIT) {
+ bio_wouldblock_error(bio);
+ return DM_MAPIO_SUBMITTED;
+ }
+
queue_bio(ms, bio, rw);
return DM_MAPIO_SUBMITTED;
}
--
2.12.3
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