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md: ignore discard return value

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__blkdev_issue_discard() always returns 0, making all error checking at
call sites dead code.

Simplify md to only check !discard_bio by ignoring the
__blkdev_issue_discard() value.

Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Chaitanya Kulkarni
2026-02-11 12:44:36 -08:00
committed by Jens Axboe
parent 81e7223b1a
commit 699fcfb6cb
1 changed files with 2 additions and 2 deletions
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4
drivers/md/md.c
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@@ -9179,8 +9179,8 @@ void md_submit_discard_bio(struct mddev *mddev, struct md_rdev *rdev,
{
struct bio *discard_bio = NULL;
if (__blkdev_issue_discard(rdev->bdev, start, size, GFP_NOIO,
&discard_bio) || !discard_bio)
__blkdev_issue_discard(rdev->bdev, start, size, GFP_NOIO, &discard_bio);
if (!discard_bio)
return;
bio_chain(discard_bio, bio);