If a bio is submitted to the brd driver that does not satisfy the
requirements of this driver, split the bio.
Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxxxxxx>
Cc: Jan Kara <jack@xxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Cc: Mike Snitzer <snitzer@xxxxxxxxxx>
Cc: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Cc: Dmitry Monakhov <dmonakhov@xxxxxxxxxx>
---
drivers/block/brd.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index 51a071e..91eb844 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -339,6 +339,8 @@ static blk_qc_t brd_make_request(struct request_queue *q, struct bio *bio)
if (bio_end_sector(bio) > get_capacity(bdev->bd_disk))
goto io_error;
+ blk_queue_split(q, &bio, q->bio_split);
+
if (unlikely(bio->bi_rw & REQ_DISCARD)) {
if (sector & ((PAGE_SIZE >> SECTOR_SHIFT) - 1) ||
bio->bi_iter.bi_size & ~PAGE_MASK)
--
2.8.1
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