diff options
| author | John Garry <john.g.garry@oracle.com> | 2024-11-11 11:21:46 +0000 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-11-11 08:35:46 -0700 |
| commit | 27b26f09a7e6ae3ecae460299349b31fe0b5452f (patch) | |
| tree | 9eebe59b80d38ba7e2feb167017cb11e7b4a7a73 | |
| parent | e546fe1da9bd47a6fddce6b37c17b1aa1811f7d3 (diff) | |
block: Error an attempt to split an atomic write in bio_split()
This is disallowed.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: John Garry <john.g.garry@oracle.com>
Link: https://lore.kernel.org/r/20241111112150.3756529-3-john.g.garry@oracle.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | block/bio.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/block/bio.c b/block/bio.c index 948b22825510..699a78c85c75 100644 --- a/block/bio.c +++ b/block/bio.c @@ -1674,6 +1674,10 @@ 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); |