kernel/linux.git/include/linux/bio-integrity.h, branch v6.12.92

block: make bio_integrity_map_user() static inline

2026-06-01T15:46:33+00:00

[ Upstream commit 546d191427cf5cf3215529744c2ea8558f0279db ] If CONFIG_BLK_DEV_INTEGRITY isn't set, then the dummy helper must be static inline to avoid complaints about the function being unused. Fixes: fe8f4ca7107e ("block: modify bio_integrity_map_user to accept iov_iter as argument") Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202411300229.y7h60mDg-lkp@intel.com/ Signed-off-by: Jens Axboe Signed-off-by: Sasha Levin

block: modify bio_integrity_map_user to accept iov_iter as argument

2026-06-01T15:46:28+00:00

[ Upstream commit fe8f4ca7107e968b0eb7328155c8811f2a19424a ] This patch refactors bio_integrity_map_user to accept iov_iter as argument. This is a prep patch. Signed-off-by: Anuj Gupta Signed-off-by: Kanchan Joshi Reviewed-by: Christoph Hellwig Reviewed-by: Keith Busch Link: https://lore.kernel.org/r/20241128112240.8867-4-anuj20.g@samsung.com Signed-off-by: Jens Axboe Stable-dep-of: 8582792cf23b ("block: bio-integrity: Fix null-ptr-deref in bio_integrity_map_user()") Signed-off-by: Sasha Levin

blk-integrity: remove seed for user mapped buffers

2026-06-01T15:46:28+00:00

[ Upstream commit 133008e84b99e4f5f8cf3d8b768c995732df9406 ] 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 Reviewed-by: Christoph Hellwig Reviewed-by: Anuj Gupta Reviewed-by: Kanchan Joshi Link: https://lore.kernel.org/r/20241016201309.1090320-1-kbusch@meta.com Signed-off-by: Jens Axboe Stable-dep-of: 637ad3a56a3b ("block: don't overwrite bip_vcnt in bio_integrity_copy_user()") Signed-off-by: Sasha Levin

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