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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 <[email protected]>
Reviewed-by: Kanchan Joshi <[email protected]>
Reviewed-by: Martin K. Petersen <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Christoph Hellwig authored and Jens Axboe committed 2024-06-28 10:29:41 -06:00
1 parent dac18fabba
commit df3c485e0e
1 file changed
+7 -5
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block/bio-integrity.c
+7 -5
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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 */