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block: switch on bio operation in bio_integrity_prep

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Use a single switch to perform read and write specific checks and exit
early for other operations instead of having two checks using different
predicates.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Kanchan Joshi <joshi.k@samsung.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20240626045950.189758-5-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2024-06-26 06:59:37 +02:00 committed by Jens Axboe
parent dac18fabba
commit df3c485e0e
1 changed files with 7 additions and 5 deletions
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12
block/bio-integrity.c
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@ -435,9 +435,6 @@ bool bio_integrity_prep(struct bio *bio)
if (!bi)
return true;
if (bio_op(bio) != REQ_OP_READ && bio_op(bio) != REQ_OP_WRITE)
return true;
if (!bio_sectors(bio))
return true;
@ -445,10 +442,12 @@ bool bio_integrity_prep(struct bio *bio)
if (bio_integrity(bio))
return true;
if (bio_data_dir(bio) == READ) {
switch (bio_op(bio)) {
case REQ_OP_READ:
if (bi->flags & BLK_INTEGRITY_NOVERIFY)
return true;
} else {
break;
case REQ_OP_WRITE:
if (bi->flags & BLK_INTEGRITY_NOGENERATE)
return true;
@ -459,6 +458,9 @@ bool bio_integrity_prep(struct bio *bio)
*/
if (bi->csum_type == BLK_INTEGRITY_CSUM_NONE)
gfp |= __GFP_ZERO;
break;
default:
return true;
}
/* Allocate kernel buffer for protection data */