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nbd: remove nbd_del_disk

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Fold nbd_del_disk and remove the pointless NULL check on ->disk given
that it is always set for a successfully allocated nbd_device structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20210811124428.2368491-4-hch@lst.de
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2021-08-11 14:44:25 +02:00 committed by Jens Axboe
parent 3f74e0645c
commit 327b501b1d
1 changed files with 5 additions and 12 deletions
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17
drivers/block/nbd.c
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@ -235,17 +235,6 @@ static const struct device_attribute backend_attr = {
.show = backend_show,
};
static void nbd_del_disk(struct nbd_device *nbd)
{
struct gendisk *disk = nbd->disk;
if (disk) {
del_gendisk(disk);
blk_cleanup_disk(disk);
blk_mq_free_tag_set(&nbd->tag_set);
}
}
/*
* Place this in the last just before the nbd is freed to
* make sure that the disk and the related kobject are also
@ -261,7 +250,11 @@ static void nbd_notify_destroy_completion(struct nbd_device *nbd)
static void nbd_dev_remove(struct nbd_device *nbd)
{
nbd_del_disk(nbd);
struct gendisk *disk = nbd->disk;
del_gendisk(disk);
blk_cleanup_disk(disk);
blk_mq_free_tag_set(&nbd->tag_set);
/*
* Remove from idr after del_gendisk() completes, so if the same ID is