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md: add a mddev_trace_remap helper

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Add a helper to trace bio remapping that hides some argument
dereferences and the check for a DM-mapped MD device.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed--by: Song Liu <song@kernel.org>
Tested-by: Song Liu <song@kernel.org>
Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20240303140150.5435-2-hch@lst.de
This commit is contained in:
Christoph Hellwig
2024-03-03 07:01:40 -07:00
committed by Song Liu
parent 3a889fdce7
commit c396b90e50
6 changed files with 17 additions and 37 deletions
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5
drivers/md/raid0.c
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@@ -578,10 +578,7 @@ static void raid0_map_submit_bio(struct mddev *mddev, struct bio *bio)
bio_set_dev(bio, tmp_dev->bdev);
bio->bi_iter.bi_sector = sector + zone->dev_start +
tmp_dev->data_offset;
if (mddev->gendisk)
trace_block_bio_remap(bio, disk_devt(mddev->gendisk),
bio_sector);
mddev_trace_remap(mddev, bio, bio_sector);
mddev_check_write_zeroes(mddev, bio);
submit_bio_noacct(bio);
}