From 74aa8c2cc010035a7eef2b4ca4d6430e0dae206a Mon Sep 17 00:00:00 2001 From: "Martin K. Petersen" Date: Wed, 1 Oct 2008 03:38:37 -0400 Subject: [PATCH] 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 Signed-off-by: Jens Axboe --- fs/bio-integrity.c | 3 ++- include/linux/bio.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) 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))) /* -- 2.30.2