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| author | Martin K. Petersen <martin.petersen@oracle.com> | 2008-10-01 03:38:37 -0400 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2008-10-09 08:56:21 +0200 |
| commit | 74aa8c2cc010035a7eef2b4ca4d6430e0dae206a (patch) | |
| tree | 4a1c84cd687343028d21288ccd70036fa4d4a89a | |
| parent | b04accc425d52ca59699290661e0dfd09b0feeeb (diff) | |
| download | linux-stable-74aa8c2cc010035a7eef2b4ca4d6430e0dae206a.tar.gz linux-stable-74aa8c2cc010035a7eef2b4ca4d6430e0dae206a.tar.bz2 linux-stable-74aa8c2cc010035a7eef2b4ca4d6430e0dae206a.zip | |
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>
| -rw-r--r-- | fs/bio-integrity.c | 3 | ||||
| -rw-r--r-- | include/linux/bio.h | 1 |
2 files changed, 3 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]); diff --git a/include/linux/bio.h b/include/linux/bio.h index 98c2d0570657..d86d39d490e6 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -109,6 +109,7 @@ struct bio { #define BIO_EOPNOTSUPP 7 /* not supported */ #define BIO_CPU_AFFINE 8 /* complete bio on same CPU as submitted */ #define BIO_NULL_MAPPED 9 /* contains invalid user pages */ +#define BIO_FS_INTEGRITY 10 /* fs owns integrity data, not block layer */ #define bio_flagged(bio, flag) ((bio)->bi_flags & (1 << (flag))) /* |