From: John Garry <john.g.garry@oracle.com>
To: axboe@kernel.dk, hch@lst.de
Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-raid@vger.kernel.org, martin.petersen@oracle.com,
John Garry <john.g.garry@oracle.com>
Subject: [PATCH RFC 2/6] block: Error an attempt to split an atomic write in bio_split()
Date: Thu, 19 Sep 2024 09:22:58 +0000 [thread overview]
Message-ID: <20240919092302.3094725-3-john.g.garry@oracle.com> (raw)
In-Reply-To: <20240919092302.3094725-1-john.g.garry@oracle.com>
This is disallowed.
Signed-off-by: John Garry <john.g.garry@oracle.com>
---
block/bio.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/block/bio.c b/block/bio.c
index 784ad8d35bd0..08caee855ca4 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -1737,6 +1737,10 @@ struct bio *bio_split(struct bio *bio, int sectors,
if (WARN_ON_ONCE(bio_op(bio) == REQ_OP_ZONE_APPEND))
return ERR_PTR(-EINVAL);
+ /* atomic writes cannot be split */
+ if (bio->bi_opf & REQ_ATOMIC)
+ return ERR_PTR(-EINVAL);
+
split = bio_alloc_clone(bio->bi_bdev, bio, gfp, bs);
if (!split)
return ERR_PTR(-ENOMEM);
--
2.31.1
next prev parent reply other threads:[~2024-09-19 9:23 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-19 9:22 [PATCH RFC 0/6] bio_split() error handling rework John Garry
2024-09-19 9:22 ` [PATCH RFC 1/6] block: Rework bio_split() return value John Garry
2024-09-19 15:50 ` Johannes Thumshirn
2024-09-23 7:27 ` John Garry
2024-09-20 14:07 ` Christoph Hellwig
2024-09-19 9:22 ` John Garry [this message]
2024-09-19 9:22 ` [PATCH RFC 3/6] block: Handle bio_split() errors in bio_submit_split() John Garry
2024-09-20 14:09 ` Christoph Hellwig
2024-09-23 10:33 ` John Garry
2024-09-19 9:23 ` [PATCH RFC 4/6] md/raid0: Handle bio_split() errors John Garry
2024-09-20 14:10 ` Christoph Hellwig
2024-09-19 9:23 ` [PATCH RFC 5/6] md/raid1: " John Garry
2024-09-20 6:58 ` Yu Kuai
2024-09-20 10:04 ` John Garry
2024-09-23 6:15 ` Yu Kuai
2024-09-23 7:44 ` John Garry
2024-09-23 8:18 ` Yu Kuai
2024-09-23 9:21 ` John Garry
2024-09-23 9:38 ` Yu Kuai
2024-09-23 10:40 ` John Garry
2024-10-23 11:16 ` John Garry
2024-10-23 11:46 ` Geoff Back
2024-10-23 12:11 ` John Garry
2024-10-24 2:10 ` Yu Kuai
2024-10-24 8:57 ` John Garry
2024-10-24 9:12 ` Yu Kuai
2024-10-24 9:56 ` John Garry
2024-10-25 1:39 ` Yu Kuai
2024-10-23 11:21 ` John Garry
2024-10-24 3:08 ` Yu Kuai
2024-10-24 13:51 ` John Garry
2024-10-25 1:24 ` Yu Kuai
2024-09-19 9:23 ` [PATCH RFC 6/6] md/raid10: " John Garry
2024-09-23 5:53 ` [PATCH RFC 0/6] bio_split() error handling rework Hannes Reinecke
2024-09-23 7:19 ` John Garry
2024-09-23 9:43 ` Hannes Reinecke
2024-09-23 10:21 ` John Garry
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