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| author | Max Gurtovoy <maxg@mellanox.com> | 2019-09-16 18:44:29 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-09-17 20:03:49 -0600 |
| commit | 54d4e6ab91eb24b47a58403d8561206e916f0242 (patch) | |
| tree | 3bd64c92b614284071d893012abcf01bfc55cabc /block/blk-integrity.c | |
| parent | 5eaed68dd38c14907be2ce5a45c73a5f2acb75f4 (diff) | |
| download | lwn-54d4e6ab91eb24b47a58403d8561206e916f0242.tar.gz lwn-54d4e6ab91eb24b47a58403d8561206e916f0242.zip | |
block: centralize PI remapping logic to the block layer
Currently t10_pi_prepare/t10_pi_complete functions are called during the
NVMe and SCSi layers command preparetion/completion, but their actual
place should be the block layer since T10-PI is a general data integrity
feature that is used by block storage protocols. Introduce .prepare_fn
and .complete_fn callbacks within the integrity profile that each type
can implement according to its needs.
Suggested-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Suggested-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Max Gurtovoy <maxg@mellanox.com>
Fixed to not call queue integrity functions if BLK_DEV_INTEGRITY
isn't defined in the config.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-integrity.c')
| -rw-r--r-- | block/blk-integrity.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/block/blk-integrity.c b/block/blk-integrity.c index ca39b4624cf8..ff1070edbb40 100644 --- a/block/blk-integrity.c +++ b/block/blk-integrity.c @@ -368,10 +368,21 @@ static blk_status_t blk_integrity_nop_fn(struct blk_integrity_iter *iter) return BLK_STS_OK; } +static void blk_integrity_nop_prepare(struct request *rq) +{ +} + +static void blk_integrity_nop_complete(struct request *rq, + unsigned int nr_bytes) +{ +} + static const struct blk_integrity_profile nop_profile = { .name = "nop", .generate_fn = blk_integrity_nop_fn, .verify_fn = blk_integrity_nop_fn, + .prepare_fn = blk_integrity_nop_prepare, + .complete_fn = blk_integrity_nop_complete, }; /** |