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@xxxxxx>
---
block/blk-settings.c | 5 +++++
block/bounce.c | 2 --
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/block/blk-settings.c b/block/blk-settings.c
index db12396ff5c7..83e9d71001bd 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -117,6 +117,11 @@ 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 integruty metadata\n");
+ return -EINVAL;
+ }
+
if (!IS_ENABLED(CONFIG_BLK_DEV_INTEGRITY)) {
pr_warn("integrity support disabled.\n");
return -EINVAL;
diff --git a/block/bounce.c b/block/bounce.c
index 0d898cd5ec49..09a9616cf209 100644
--- a/block/bounce.c
+++ b/block/bounce.c
@@ -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);
--
2.45.2
