[PATCH 14/17] ubiblock: pass queue_limits to blk_mq_alloc_disk

[Zhihao Cheng]

在 2024/2/15 15:02, Christoph Hellwig 写道:
> Pass the few limits ubiblock imposes directly to blk_mq_alloc_disk
> instead of setting them one at a time.
> 
> Signed-off-by: Christoph Hellwig <hch at lst.de>
> ---
>   drivers/mtd/ubi/block.c | 6 ++++--
>   1 file changed, 4 insertions(+), 2 deletions(-)

Reviewed-by: Zhihao Cheng <chengzhihao1 at huawei.com>
> 
> diff --git a/drivers/mtd/ubi/block.c b/drivers/mtd/ubi/block.c
> index 9be87c231a2eba..5c8fdcc088a0df 100644
> --- a/drivers/mtd/ubi/block.c
> +++ b/drivers/mtd/ubi/block.c
> @@ -348,6 +348,9 @@ static int calc_disk_capacity(struct ubi_volume_info *vi, u64 *disk_capacity)
>   
>   int ubiblock_create(struct ubi_volume_info *vi)
>   {
> +	struct queue_limits lim = {
> +		.max_segments		= UBI_MAX_SG_COUNT,
> +	};
>   	struct ubiblock *dev;
>   	struct gendisk *gd;
>   	u64 disk_capacity;
> @@ -393,7 +396,7 @@ int ubiblock_create(struct ubi_volume_info *vi)
>   
>   
>   	/* Initialize the gendisk of this ubiblock device */
> -	gd = blk_mq_alloc_disk(&dev->tag_set, NULL, dev);
> +	gd = blk_mq_alloc_disk(&dev->tag_set, &lim, dev);
>   	if (IS_ERR(gd)) {
>   		ret = PTR_ERR(gd);
>   		goto out_free_tags;
> @@ -416,7 +419,6 @@ int ubiblock_create(struct ubi_volume_info *vi)
>   	dev->gd = gd;
>   
>   	dev->rq = gd->queue;
> -	blk_queue_max_segments(dev->rq, UBI_MAX_SG_COUNT);
>   
>   	list_add_tail(&dev->list, &ubiblock_devices);
>   
>