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block: mark bounce buffering as incompatible with integrity

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[ Upstream commit 5fd0268a8806d35dcaf89139bfcda92be51b2b2f ]

None of the few drivers still using the legacy block layer bounce
buffering support integrity metadata.  Explicitly mark the features as
incompatible and stop creating the slab and mempool for integrity
buffers for the bounce bio_set.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Anuj Gupta <anuj20.g@samsung.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20250225154449.422989-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Christoph Hellwig
2025-02-25 07:44:31 -08:00
committed by Greg Kroah-Hartman
parent f7226dedac
commit 564f03a797
2 changed files with 5 additions and 2 deletions
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5
block/blk-settings.c
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@@ -124,6 +124,11 @@ static int blk_validate_integrity_limits(struct queue_limits *lim)
return 0;
}
if (lim->features & BLK_FEAT_BOUNCE_HIGH) {
pr_warn("no bounce buffer support for integrity metadata\n");
return -EINVAL;
}
if (!IS_ENABLED(CONFIG_BLK_DEV_INTEGRITY)) {
pr_warn("integrity support disabled.\n");
return -EINVAL;

2
block/bounce.c
View File

@@ -41,8 +41,6 @@ static void init_bounce_bioset(void)
ret = bioset_init(&bounce_bio_set, BIO_POOL_SIZE, 0, BIOSET_NEED_BVECS);
BUG_ON(ret);
if (bioset_integrity_create(&bounce_bio_set, BIO_POOL_SIZE))
BUG_ON(1);
ret = bioset_init(&bounce_bio_split, BIO_POOL_SIZE, 0, 0);
BUG_ON(ret);