From: Damien Le Moal <dlemoal@kernel.org>
To: linux-block@vger.kernel.org, Jens Axboe <axboe@kernel.dk>,
dm-devel@lists.linux.dev, Mike Snitzer <snitzer@redhat.com>
Subject: [PATCH 08/13] block: Fix flush request sector restore
Date: Tue, 30 Apr 2024 21:51:26 +0900 [thread overview]
Message-ID: <20240430125131.668482-9-dlemoal@kernel.org> (raw)
In-Reply-To: <20240430125131.668482-1-dlemoal@kernel.org>
Make sure that a request bio is not NULL before trying to restore the
request start sector.
Reported-by: Yi Zhang <yi.zhang@redhat.com>
Fixes: 6f8fd758de63 ("block: Restore sector of flush requests")
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
---
block/blk-flush.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/block/blk-flush.c b/block/blk-flush.c
index 2f58ae018464..c17cf8ed8113 100644
--- a/block/blk-flush.c
+++ b/block/blk-flush.c
@@ -130,7 +130,8 @@ static void blk_flush_restore_request(struct request *rq)
* original @rq->bio. Restore it.
*/
rq->bio = rq->biotail;
- rq->__sector = rq->bio->bi_iter.bi_sector;
+ if (rq->bio)
+ rq->__sector = rq->bio->bi_iter.bi_sector;
/* make @rq a normal request */
rq->rq_flags &= ~RQF_FLUSH_SEQ;
--
2.44.0
next prev parent reply other threads:[~2024-04-30 12:51 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-30 12:51 [PATCH 00/13] Zone write plugging fixes and cleanup Damien Le Moal
2024-04-30 12:51 ` [PATCH 01/13] dm: Check that a zoned table leads to a valid mapped device Damien Le Moal
2024-04-30 12:51 ` [PATCH 02/13] block: Exclude conventional zones when faking max open limit Damien Le Moal
2024-04-30 15:24 ` Christoph Hellwig
2024-04-30 19:04 ` Jens Axboe
2024-05-01 4:57 ` Christoph Hellwig
2024-04-30 12:51 ` [PATCH 03/13] block: Fix zone write plug initialization from blk_revalidate_zone_cb() Damien Le Moal
2024-04-30 15:26 ` Christoph Hellwig
2024-04-30 22:50 ` Damien Le Moal
2024-04-30 23:54 ` Damien Le Moal
2024-04-30 12:51 ` [PATCH 04/13] block: Fix reference counting for zone write plugs in error state Damien Le Moal
2024-04-30 15:28 ` Christoph Hellwig
2024-04-30 12:51 ` [PATCH 05/13] block: Hold a reference on zone write plugs to schedule submission Damien Le Moal
2024-04-30 15:30 ` Christoph Hellwig
2024-04-30 12:51 ` [PATCH 06/13] block: Unhash a zone write plug only if needed Damien Le Moal
2024-04-30 15:31 ` Christoph Hellwig
2024-04-30 12:51 ` [PATCH 07/13] block: Do not remove zone write plugs still in use Damien Le Moal
2024-04-30 15:34 ` Christoph Hellwig
2024-04-30 23:06 ` Damien Le Moal
2024-04-30 23:55 ` Damien Le Moal
2024-04-30 12:51 ` Damien Le Moal [this message]
2024-04-30 15:26 ` [PATCH 08/13] block: Fix flush request sector restore Christoph Hellwig
2024-04-30 12:51 ` [PATCH 09/13] block: Fix handling of non-empty flush write requests to zones Damien Le Moal
2024-04-30 15:34 ` Christoph Hellwig
2024-04-30 12:51 ` [PATCH 10/13] block: Improve blk_zone_write_plug_bio_merged() Damien Le Moal
2024-04-30 15:35 ` Christoph Hellwig
2024-04-30 12:51 ` [PATCH 11/13] block: Improve zone write request completion handling Damien Le Moal
2024-04-30 15:39 ` Christoph Hellwig
2024-04-30 12:51 ` [PATCH 12/13] block: Simplify blk_zone_write_plug_bio_endio() Damien Le Moal
2024-04-30 15:36 ` Christoph Hellwig
2024-04-30 12:51 ` [PATCH 13/13] block: Simplify zone write plug BIO abort Damien Le Moal
2024-04-30 15:36 ` Christoph Hellwig
2024-04-30 17:00 ` [PATCH 00/13] Zone write plugging fixes and cleanup Johannes Thumshirn
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