diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/block/brd.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/block/brd.c b/drivers/block/brd.c index c2e5b2ad88bc..a8730cc4db10 100644 --- a/drivers/block/brd.c +++ b/drivers/block/brd.c @@ -297,6 +297,10 @@ static blk_qc_t brd_make_request(struct request_queue *q, struct bio *bio) unsigned int len = bvec.bv_len; int err; + /* Don't support un-aligned buffer */ + WARN_ON_ONCE((bvec.bv_offset & (SECTOR_SIZE - 1)) || + (len & (SECTOR_SIZE - 1))); + err = brd_do_bvec(brd, bvec.bv_page, len, bvec.bv_offset, bio_op(bio), sector); if (err) |