diff options
| -rw-r--r-- | drivers/md/dm-thin.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index 423df92f1c1..7510cb3d571 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -1315,7 +1315,7 @@ static void process_shared_bio(struct thin_c *tc, struct bio *bio, if (bio_detain(pool->prison, &key, bio, &cell)) return; - if (bio_data_dir(bio) == WRITE) + if (bio_data_dir(bio) == WRITE && bio->bi_size) break_sharing(tc, bio, block, &key, lookup_result, cell); else { struct dm_thin_endio_hook *h = dm_get_mapinfo(bio)->ptr; |