kernel/linux.git/include/linux/bio-integrity.h, branch v6.12.80

block: don't free the integrity payload in bio_integrity_unmap_free_user

2024-07-03T16:21:16+00:00

Now that the integrity payload is always freed in bio_uninit, don't bother freeing it a little earlier in bio_integrity_unmap_free_user. With that the separate bio_integrity_unmap_free_user can go away by just passing the bio to bio_integrity_unmap_user. Signed-off-by: Christoph Hellwig Reviewed-by: Johannes Thumshirn Reviewed-by: Kanchan Joshi Reviewed-by: Martin K. Petersen Link: https://lore.kernel.org/r/20240702151047.1746127-7-hch@lst.de Signed-off-by: Jens Axboe

block: don't free submitter owned integrity payload on I/O completion

2024-07-03T16:21:16+00:00

Currently __bio_integrity_endio frees the integrity payload unless it is explicitly marked as user-mapped. This means in-kernel callers that allocate their own integrity payload never get to see it on I/O completion. The current two users don't need it as they just pre-mapped PI tuples received over the network, but this limits uses of integrity data lot. Change bio_integrity_endio to call __bio_integrity_endio for block layer generated integrity data only, and leave freeing of submitter allocated integrity data to bio_uninit which also gets called from the final bio_put. This requires that unmapping user mapped or copied integrity data is now always done by the caller, and the special BIP_INTEGRITY_USER flag can go away. Signed-off-by: Christoph Hellwig Reviewed-by: Johannes Thumshirn Reviewed-by: Kanchan Joshi Reviewed-by: Martin K. Petersen Link: https://lore.kernel.org/r/20240702151047.1746127-6-hch@lst.de Signed-off-by: Jens Axboe

block: also return bio_integrity_payload * from stubs

2024-07-03T16:21:16+00:00

struct bio_integrity_payload is defined unconditionally. No need to return void * from bio_integrity() and bio_integrity_alloc(). Signed-off-by: Christoph Hellwig Reviewed-by: Kanchan Joshi Reviewed-by: Anuj Gupta Reviewed-by: Johannes Thumshirn Reviewed-by: Martin K. Petersen Link: https://lore.kernel.org/r/20240702151047.1746127-3-hch@lst.de Signed-off-by: Jens Axboe

block: split integrity support out of bio.h

2024-07-03T16:21:15+00:00

Split struct bio_integrity_payload and the related prototypes out of bio.h into a separate bio-integrity.h header so that it is only pulled in by the few places that need it. Signed-off-by: Christoph Hellwig Reviewed-by: Anuj Gupta Reviewed-by: Kanchan Joshi Reviewed-by: Johannes Thumshirn Reviewed-by: Martin K. Petersen Link: https://lore.kernel.org/r/20240702151047.1746127-2-hch@lst.de Signed-off-by: Jens Axboe