diff options
| author | Christoph Hellwig <hch@lst.de> | 2026-02-23 05:20:01 -0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2026-03-09 07:47:02 -0600 |
| commit | 7ea25eaad5ae3a6c837a3df9bdb822194f002565 (patch) | |
| tree | 605d25cad14d147da1fa955036226bc9fcb9fd3d /include | |
| parent | 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f (diff) | |
block: factor out a bio_integrity_action helper
Split the logic to see if a bio needs integrity metadata from
bio_integrity_prep into a reusable helper than can be called from
file system code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Anuj Gupta <anuj20.g@samsung.com>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Tested-by: Anuj Gupta <anuj20.g@samsung.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/bio-integrity.h | 5 | ||||
| -rw-r--r-- | include/linux/blk-integrity.h | 23 |
2 files changed, 25 insertions, 3 deletions
diff --git a/include/linux/bio-integrity.h b/include/linux/bio-integrity.h index 21e4652dcfd2..276cbbdd2c9d 100644 --- a/include/linux/bio-integrity.h +++ b/include/linux/bio-integrity.h @@ -78,7 +78,7 @@ int bio_integrity_add_page(struct bio *bio, struct page *page, unsigned int len, int bio_integrity_map_user(struct bio *bio, struct iov_iter *iter); int bio_integrity_map_iter(struct bio *bio, struct uio_meta *meta); void bio_integrity_unmap_user(struct bio *bio); -bool bio_integrity_prep(struct bio *bio); +void bio_integrity_prep(struct bio *bio, unsigned int action); void bio_integrity_advance(struct bio *bio, unsigned int bytes_done); void bio_integrity_trim(struct bio *bio); int bio_integrity_clone(struct bio *bio, struct bio *bio_src, gfp_t gfp_mask); @@ -104,9 +104,8 @@ static inline void bio_integrity_unmap_user(struct bio *bio) { } -static inline bool bio_integrity_prep(struct bio *bio) +static inline void bio_integrity_prep(struct bio *bio, unsigned int action) { - return true; } static inline int bio_integrity_clone(struct bio *bio, struct bio *bio_src, diff --git a/include/linux/blk-integrity.h b/include/linux/blk-integrity.h index c15b1ac62765..fd3f3c8c0fcd 100644 --- a/include/linux/blk-integrity.h +++ b/include/linux/blk-integrity.h @@ -180,4 +180,27 @@ static inline struct bio_vec rq_integrity_vec(struct request *rq) } #endif /* CONFIG_BLK_DEV_INTEGRITY */ +enum bio_integrity_action { + BI_ACT_BUFFER = (1u << 0), /* allocate buffer */ + BI_ACT_CHECK = (1u << 1), /* generate / verify PI */ + BI_ACT_ZERO = (1u << 2), /* zero buffer */ +}; + +/** + * bio_integrity_action - return the integrity action needed for a bio + * @bio: bio to operate on + * + * Returns the mask of integrity actions (BI_ACT_*) that need to be performed + * for @bio. + */ +unsigned int __bio_integrity_action(struct bio *bio); +static inline unsigned int bio_integrity_action(struct bio *bio) +{ + if (!blk_get_integrity(bio->bi_bdev->bd_disk)) + return 0; + if (bio_integrity(bio)) + return 0; + return __bio_integrity_action(bio); +} + #endif /* _LINUX_BLK_INTEGRITY_H */ |