block: Introduce integrity data ownership flag

A filesystem might supply its own integrity metadata.  Introduce a
flag that indicates whether the filesystem or the block layer owns the
integrity buffer.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/fs/bio-integrity.c b/fs/bio-integrity.c
index 6e28dcdd23a2..19caf7c962ac 100644
--- a/fs/bio-integrity.c
+++ b/fs/bio-integrity.c
@@ -107,7 +107,8 @@ void bio_integrity_free(struct bio *bio, struct bio_set *bs)
         BUG_ON(bip == NULL);
 
         /* A cloned bio doesn't own the integrity metadata */
-        if (!bio_flagged(bio, BIO_CLONED) && bip->bip_buf != NULL)
+        if (!bio_flagged(bio, BIO_CLONED) && !bio_flagged(bio, BIO_FS_INTEGRITY)
+            && bip->bip_buf != NULL)
                 kfree(bip->bip_buf);
 
         mempool_free(bip->bip_vec, bs->bvec_pools[bip->bip_pool]);