diff options
Diffstat (limited to 'block')
| -rw-r--r-- | block/ll_rw_blk.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c index 56f2646..3e4e8bf 100644 --- a/block/ll_rw_blk.c +++ b/block/ll_rw_blk.c @@ -3221,6 +3221,7 @@ static inline void __generic_make_request(struct bio *bio) sector_t old_sector; int ret, nr_sectors = bio_sectors(bio); dev_t old_dev; + int err = -EIO; might_sleep(); @@ -3248,7 +3249,7 @@ static inline void __generic_make_request(struct bio *bio) bdevname(bio->bi_bdev, b), (long long) bio->bi_sector); end_io: - bio_endio(bio, -EIO); + bio_endio(bio, err); break; } @@ -3283,6 +3284,10 @@ end_io: if (bio_check_eod(bio, nr_sectors)) goto end_io; + if (bio_empty_barrier(bio) && !q->prepare_flush_fn) { + err = -EOPNOTSUPP; + goto end_io; + } ret = q->make_request_fn(q, bio); } while (ret); |