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From: Andreas Gruenbacher <agruenba@redhat.com>
To: Christoph Hellwig <hch@infradead.org>,
	Jens Axboe <axboe@kernel.dk>, Chris Mason <clm@fb.com>,
	David Sterba <dsterba@suse.com>,
	Satya Tangirala <satyat@google.com>
Cc: Andreas Gruenbacher <agruenba@redhat.com>,
	linux-block@vger.kernel.org, linux-btrfs@vger.kernel.org,
	linux-raid@vger.kernel.org, dm-devel@lists.linux.dev,
	linux-kernel@vger.kernel.org
Subject: [RFC v2 15/17] bio: never set bi_status to BLK_STS_OK during completion
Date: Sun, 21 Dec 2025 03:52:30 +0100	[thread overview]
Message-ID: <20251221025233.87087-16-agruenba@redhat.com> (raw)
In-Reply-To: <20251221025233.87087-1-agruenba@redhat.com>

In a few places in the code, we don't know if a bio has failed or
completed successfully, so use bio_set_status() instead of setting
bi_status directly.  That way, bi_status will never be set to
BI_STS_OK (0) during completion.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
---
 block/blk-crypto-fallback.c   | 2 +-
 drivers/block/ps3vram.c       | 2 +-
 drivers/md/dm-flakey.c        | 2 +-
 drivers/md/dm-verity-target.c | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/block/blk-crypto-fallback.c b/block/blk-crypto-fallback.c
index 8a2631b1e7e1..7014f646e236 100644
--- a/block/blk-crypto-fallback.c
+++ b/block/blk-crypto-fallback.c
@@ -150,7 +150,7 @@ static void blk_crypto_fallback_encrypt_endio(struct bio *enc_bio)
 		mempool_free(enc_bio->bi_io_vec[i].bv_page,
 			     blk_crypto_bounce_page_pool);
 
-	src_bio->bi_status = enc_bio->bi_status;
+	bio_set_status(src_bio, enc_bio->bi_status);
 
 	bio_uninit(enc_bio);
 	kfree(enc_bio);
diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c
index bdcf083b45e2..06844674c998 100644
--- a/drivers/block/ps3vram.c
+++ b/drivers/block/ps3vram.c
@@ -573,7 +573,7 @@ static struct bio *ps3vram_do_bio(struct ps3_system_bus_device *dev,
 	next = bio_list_peek(&priv->list);
 	spin_unlock_irq(&priv->lock);
 
-	bio->bi_status = error;
+	bio_set_status(bio, error);
 	bio_endio(bio);
 	return next;
 }
diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c
index 08925aca838c..8dde47beb387 100644
--- a/drivers/md/dm-flakey.c
+++ b/drivers/md/dm-flakey.c
@@ -420,7 +420,7 @@ static void clone_free(struct bio *clone)
 static void clone_endio(struct bio *clone)
 {
 	struct bio *bio = clone->bi_private;
-	bio->bi_status = clone->bi_status;
+	bio_set_status(bio, clone->bi_status);
 	clone_free(clone);
 	bio_endio(bio);
 }
diff --git a/drivers/md/dm-verity-target.c b/drivers/md/dm-verity-target.c
index 66a00a8ccb39..4793bcf546ad 100644
--- a/drivers/md/dm-verity-target.c
+++ b/drivers/md/dm-verity-target.c
@@ -544,7 +544,7 @@ static void verity_finish_io(struct dm_verity_io *io, blk_status_t status)
 	struct bio *bio = dm_bio_from_per_bio_data(io, v->ti->per_io_data_size);
 
 	bio->bi_end_io = io->orig_bi_end_io;
-	bio->bi_status = status;
+	bio_set_status(bio, status);
 
 	if (!static_branch_unlikely(&use_bh_wq_enabled) || !io->in_bh)
 		verity_fec_finish_io(io);
-- 
2.52.0


  parent reply	other threads:[~2025-12-21  2:53 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-12-21  2:52 [RFC v2 00/17] bio cleanups Andreas Gruenbacher
2025-12-21  2:52 ` [RFC v2 01/17] xfs: don't clobber bi_status in xfs_zone_alloc_and_submit Andreas Gruenbacher
2025-12-21 15:39   ` Andreas Gruenbacher
2025-12-21  2:52 ` [RFC v2 02/17] bio: rename bio_chain arguments Andreas Gruenbacher
2025-12-21  2:52 ` [RFC v2 03/17] bio: use bio_io_error more often Andreas Gruenbacher
2025-12-21  2:52 ` [RFC v2 04/17] bio: add bio_set_status Andreas Gruenbacher
2025-12-21  2:52 ` [RFC v2 05/17] bio: use bio_set_status for BLK_STS_* status codes Andreas Gruenbacher
2025-12-21  2:52 ` [RFC v2 06/17] bio: do not check bio->bi_status before assigning to it Andreas Gruenbacher
2025-12-21  2:52 ` [RFC v2 07/17] block: consecutive blk_status_t error codes Andreas Gruenbacher
2025-12-21  2:52 ` [RFC v2 08/17] block: fix blk_status_to_{errno,str} inconsistency Andreas Gruenbacher
2025-12-21  2:52 ` [RFC v2 09/17] block: turn blk_errors array into a macro Andreas Gruenbacher
2025-12-21  2:52 ` [RFC v2 10/17] block: optimize blk_status <=> errno conversion Andreas Gruenbacher
2025-12-21  2:52 ` [RFC v2 11/17] bio: bio_set_status from non-zero errno Andreas Gruenbacher
2025-12-21  2:52 ` [RFC v2 12/17] bio: do not check bio->bi_status before assigning to it (part 2) Andreas Gruenbacher
2025-12-21  2:52 ` [RFC v2 13/17] xfs: use bio_set_status in xfs_zone_alloc_and_submit Andreas Gruenbacher
2025-12-21  2:52 ` [RFC v2 14/17] bio: switch to bio_set_status in submit_bio_noacct Andreas Gruenbacher
2025-12-21  2:52 ` Andreas Gruenbacher [this message]
2025-12-21  2:52 ` [RFC v2 16/17] bio: never set bi_status to BLK_STS_OK during completion (part 2) Andreas Gruenbacher
2025-12-21  2:52 ` [RFC v2 17/17] bio: add bio_endio_status Andreas Gruenbacher

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