diff options
| author | Kanchan Joshi <joshi.k@samsung.com> | 2024-11-28 16:52:40 +0530 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2024-12-23 08:17:17 -0700 |
| commit | 3d8b5a22d40435b4a7e58f06ae2cd3506b222898 (patch) | |
| tree | 4cb97a78e8f3f2458e7d890b55e9b941b00bcc51 /include/linux/bio-integrity.h | |
| parent | 18623503a3a514780214850bf8ba8b03ea0f3a4b (diff) | |
block: add support to pass user meta buffer
If an iocb contains metadata, extract that and prepare the bip.
Based on flags specified by the user, set corresponding guard/app/ref
tags to be checked in bip.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Anuj Gupta <anuj20.g@samsung.com>
Signed-off-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Link: https://lore.kernel.org/r/20241128112240.8867-11-anuj20.g@samsung.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/bio-integrity.h')
| -rw-r--r-- | include/linux/bio-integrity.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/bio-integrity.h b/include/linux/bio-integrity.h index 2195bc06dcde..de0a6c9de4d1 100644 --- a/include/linux/bio-integrity.h +++ b/include/linux/bio-integrity.h @@ -23,6 +23,7 @@ struct bio_integrity_payload { unsigned short bip_vcnt; /* # of integrity bio_vecs */ unsigned short bip_max_vcnt; /* integrity bio_vec slots */ unsigned short bip_flags; /* control flags */ + u16 app_tag; /* application tag value */ struct bvec_iter bio_iter; /* for rewinding parent bio */ @@ -78,6 +79,7 @@ struct bio_integrity_payload *bio_integrity_alloc(struct bio *bio, gfp_t gfp, int bio_integrity_add_page(struct bio *bio, struct page *page, unsigned int len, unsigned int offset); 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_advance(struct bio *bio, unsigned int bytes_done); @@ -108,6 +110,11 @@ static int bio_integrity_map_user(struct bio *bio, struct iov_iter *iter) return -EINVAL; } +static inline int bio_integrity_map_iter(struct bio *bio, struct uio_meta *meta) +{ + return -EINVAL; +} + static inline void bio_integrity_unmap_user(struct bio *bio) { } |