From e7258c1a269e0967856c81d182c286a78f5ecf15 Mon Sep 17 00:00:00 2001 From: "Martin K. Petersen" Date: Fri, 26 Sep 2014 19:19:55 -0400 Subject: [PATCH] block: Get rid of bdev_integrity_enabled() bdev_integrity_enabled() is only used by bio_integrity_enabled(). Combine these two functions. Signed-off-by: Martin K. Petersen Reviewed-by: Christoph Hellwig Reviewed-by: Sagi Grimberg Signed-off-by: Jens Axboe --- Documentation/block/data-integrity.txt | 10 ------- block/bio-integrity.c | 39 +++++++++++--------------- include/linux/bio.h | 6 ++-- 3 files changed, 20 insertions(+), 35 deletions(-) diff --git a/Documentation/block/data-integrity.txt b/Documentation/block/data-integrity.txt index 2d735b0ae383..b4eacf48053c 100644 --- a/Documentation/block/data-integrity.txt +++ b/Documentation/block/data-integrity.txt @@ -192,16 +192,6 @@ will require extra work due to the application tag. supported by the block device. - int bdev_integrity_enabled(block_device, int rw); - - bdev_integrity_enabled() will return 1 if the block device - supports integrity metadata transfer for the data direction - specified in 'rw'. - - bdev_integrity_enabled() honors the write_generate and - read_verify flags in sysfs and will respond accordingly. - - int bio_integrity_prep(bio); To generate IMD for WRITE and to set up buffers for READ, the diff --git a/block/bio-integrity.c b/block/bio-integrity.c index f14b4abbebd8..36b788552c3e 100644 --- a/block/bio-integrity.c +++ b/block/bio-integrity.c @@ -147,24 +147,6 @@ int bio_integrity_add_page(struct bio *bio, struct page *page, } EXPORT_SYMBOL(bio_integrity_add_page); -static int bdev_integrity_enabled(struct block_device *bdev, int rw) -{ - struct blk_integrity *bi = bdev_get_integrity(bdev); - - if (bi == NULL) - return 0; - - if (rw == READ && bi->verify_fn != NULL && - (bi->flags & INTEGRITY_FLAG_READ)) - return 1; - - if (rw == WRITE && bi->generate_fn != NULL && - (bi->flags & INTEGRITY_FLAG_WRITE)) - return 1; - - return 0; -} - /** * bio_integrity_enabled - Check whether integrity can be passed * @bio: bio to check @@ -174,16 +156,29 @@ static int bdev_integrity_enabled(struct block_device *bdev, int rw) * set prior to calling. The functions honors the write_generate and * read_verify flags in sysfs. */ -int bio_integrity_enabled(struct bio *bio) +bool bio_integrity_enabled(struct bio *bio) { + struct blk_integrity *bi = bdev_get_integrity(bio->bi_bdev); + if (!bio_is_rw(bio)) - return 0; + return false; /* Already protected? */ if (bio_integrity(bio)) - return 0; + return false; + + if (bi == NULL) + return false; + + if (bio_data_dir(bio) == READ && bi->verify_fn != NULL && + (bi->flags & INTEGRITY_FLAG_READ)) + return true; + + if (bio_data_dir(bio) == WRITE && bi->generate_fn != NULL && + (bi->flags & INTEGRITY_FLAG_WRITE)) + return true; - return bdev_integrity_enabled(bio->bi_bdev, bio_data_dir(bio)); + return false; } EXPORT_SYMBOL(bio_integrity_enabled); diff --git a/include/linux/bio.h b/include/linux/bio.h index b39e5000ff58..63e399b4fde5 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -666,7 +666,7 @@ struct biovec_slab { extern struct bio_integrity_payload *bio_integrity_alloc(struct bio *, gfp_t, unsigned int); extern void bio_integrity_free(struct bio *); extern int bio_integrity_add_page(struct bio *, struct page *, unsigned int, unsigned int); -extern int bio_integrity_enabled(struct bio *bio); +extern bool bio_integrity_enabled(struct bio *bio); extern int bio_integrity_set_tag(struct bio *, void *, unsigned int); extern int bio_integrity_get_tag(struct bio *, void *, unsigned int); extern int bio_integrity_prep(struct bio *); @@ -685,9 +685,9 @@ static inline int bio_integrity(struct bio *bio) return 0; } -static inline int bio_integrity_enabled(struct bio *bio) +static inline bool bio_integrity_enabled(struct bio *bio) { - return 0; + return false; } static inline int bioset_integrity_create(struct bio_set *bs, int pool_size) -- 2.20.1