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nbd: use the default discard granularity

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The discard granularity now defaults to a single sector, so don't set
that value explicitly.  Also don't bother clearing it as a discard
granularity without discard_sectors doesn't mean anything.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20231228075545.362768-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Christoph Hellwig 2023-12-28 07:55:41 +00:00 committed by Jens Axboe
parent 599d9d4eab
commit 1e2ab2e8a9
1 changed files with 1 additions and 5 deletions
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6
drivers/block/nbd.c
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@ -334,10 +334,8 @@ static int nbd_set_size(struct nbd_device *nbd, loff_t bytesize,
if (!nbd->pid)
return 0;
if (nbd->config->flags & NBD_FLAG_SEND_TRIM) {
nbd->disk->queue->limits.discard_granularity = blksize;
if (nbd->config->flags & NBD_FLAG_SEND_TRIM)
blk_queue_max_discard_sectors(nbd->disk->queue, UINT_MAX);
}
blk_queue_logical_block_size(nbd->disk->queue, blksize);
blk_queue_physical_block_size(nbd->disk->queue, blksize);
@ -1357,7 +1355,6 @@ static void nbd_config_put(struct nbd_device *nbd)
nbd->config = NULL;
nbd->tag_set.timeout = 0;
nbd->disk->queue->limits.discard_granularity = 0;
blk_queue_max_discard_sectors(nbd->disk->queue, 0);
mutex_unlock(&nbd->config_lock);
@ -1850,7 +1847,6 @@ 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);
disk->queue->limits.discard_granularity = 0;
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);