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nbd: pass queue_limits to blk_mq_alloc_disk

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Pass the few limits nbd imposes directly to blk_mq_alloc_disk instead
of setting them one at a time.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240215070300.2200308-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2024-02-15 08:02:48 +01:00 committed by Jens Axboe
parent 68c3135fb5
commit 9a0d497028
1 changed files with 7 additions and 6 deletions
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13
drivers/block/nbd.c
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@ -1783,6 +1783,12 @@ static const struct blk_mq_ops nbd_mq_ops = {
static struct nbd_device *nbd_dev_add(int index, unsigned int refs)
{
struct queue_limits lim = {
.max_hw_sectors = 65536,
.max_user_sectors = 256,
.max_segments = USHRT_MAX,
.max_segment_size = UINT_MAX,
};
struct nbd_device *nbd;
struct gendisk *disk;
int err = -ENOMEM;
@ -1823,7 +1829,7 @@ static struct nbd_device *nbd_dev_add(int index, unsigned int refs)
if (err < 0)
goto out_free_tags;
disk = blk_mq_alloc_disk(&nbd->tag_set, NULL, NULL);
disk = blk_mq_alloc_disk(&nbd->tag_set, &lim, NULL);
if (IS_ERR(disk)) {
err = PTR_ERR(disk);
goto out_free_idr;
@ -1843,11 +1849,6 @@ static struct nbd_device *nbd_dev_add(int index, unsigned int refs)
* Tell the block layer that we are not a rotational device
*/
blk_queue_flag_set(QUEUE_FLAG_NONROT, disk->queue);
blk_queue_max_discard_sectors(disk->queue, 0);
blk_queue_max_segment_size(disk->queue, UINT_MAX);
blk_queue_max_segments(disk->queue, USHRT_MAX);
blk_queue_max_hw_sectors(disk->queue, 65536);
disk->queue->limits.max_sectors = 256;
mutex_init(&nbd->config_lock);
refcount_set(&nbd->config_refs, 0);