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

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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@xxxxxx>
---
  drivers/mtd/ubi/block.c | 6 ++++--
  1 file changed, 4 insertions(+), 2 deletions(-)

Reviewed-by: Zhihao Cheng <chengzhihao1@xxxxxxxxxx>

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);





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