diff mbox series

[for-next] block: fix req_bio_endio append error handling

Message ID 344ea4e334aace9148b41af5f2426da38c8aa65a.1634914228.git.asml.silence@gmail.com (mailing list archive)
State New, archived
Headers show
Series [for-next] block: fix req_bio_endio append error handling | expand

Commit Message

Pavel Begunkov Oct. 22, 2021, 3:01 p.m. UTC
Shinichiro Kawasaki reports that there is a bug in a recent
req_bio_endio() patch causing problems with zonefs. As Shinichiro
suggested, inverse the condition in zone append path to resemble how it
was before: fail when it's not fully completed.

Fixes: 478eb72b815f3 ("block: optimise req_bio_endio()")
Reported-by: Shinichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
 block/blk-mq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Jens Axboe Oct. 22, 2021, 3:12 p.m. UTC | #1
On Fri, 22 Oct 2021 16:01:44 +0100, Pavel Begunkov wrote:
> Shinichiro Kawasaki reports that there is a bug in a recent
> req_bio_endio() patch causing problems with zonefs. As Shinichiro
> suggested, inverse the condition in zone append path to resemble how it
> was before: fail when it's not fully completed.
> 
> 

Applied, thanks!

[1/1] block: fix req_bio_endio append error handling
      commit: 297db731847e7808881ec2123c7564067d594d39

Best regards,
diff mbox series

Patch

diff --git a/block/blk-mq.c b/block/blk-mq.c
index d04ee72ba125..c19dfa8ea65e 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -640,7 +640,7 @@  static void req_bio_endio(struct request *rq, struct bio *bio,
 		 * Partial zone append completions cannot be supported as the
 		 * BIO fragments may end up not being written sequentially.
 		 */
-		if (bio->bi_iter.bi_size == nbytes)
+		if (bio->bi_iter.bi_size != nbytes)
 			bio->bi_status = BLK_STS_IOERR;
 		else
 			bio->bi_iter.bi_sector = rq->__sector;