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path: root/include/linux/bio-integrity.h
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2024-10-30blk-integrity: remove seed for user mapped buffersKeith Busch
The seed is only used for kernel generation and verification. That doesn't happen for user buffers, so passing the seed around doesn't accomplish anything. Signed-off-by: Keith Busch <kbusch@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Anuj Gupta <anuj20.g@samsung.com> Reviewed-by: Kanchan Joshi <joshi.k@samsung.com> Link: https://lore.kernel.org/r/20241016201309.1090320-1-kbusch@meta.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-07-03block: don't free the integrity payload in bio_integrity_unmap_free_userChristoph Hellwig
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 <hch@lst.de> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Kanchan Joshi <joshi.k@samsung.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Link: https://lore.kernel.org/r/20240702151047.1746127-7-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-07-03block: don't free submitter owned integrity payload on I/O completionChristoph Hellwig
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 <hch@lst.de> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Kanchan Joshi <joshi.k@samsung.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Link: https://lore.kernel.org/r/20240702151047.1746127-6-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-07-03block: also return bio_integrity_payload * from stubsChristoph Hellwig
struct bio_integrity_payload is defined unconditionally. No need to return void * from bio_integrity() and bio_integrity_alloc(). Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Kanchan Joshi <joshi.k@samsung.com> Reviewed-by: Anuj Gupta <anuj20.g@samsung.com> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Link: https://lore.kernel.org/r/20240702151047.1746127-3-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2024-07-03block: split integrity support out of bio.hChristoph Hellwig
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 <hch@lst.de> Reviewed-by: Anuj Gupta <anuj20.g@samsung.com> Reviewed-by: Kanchan Joshi <joshi.k@samsung.com> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Link: https://lore.kernel.org/r/20240702151047.1746127-2-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>