Commit 262d431f authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe

pd: use blk_mq_alloc_disk and blk_cleanup_disk

Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and
request_queue allocation.
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarChaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Link: https://lore.kernel.org/r/20210602065345.355274-22-hch@lst.deSigned-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 6759b1a2
...@@ -879,18 +879,6 @@ static void pd_probe_drive(struct pd_unit *disk) ...@@ -879,18 +879,6 @@ static void pd_probe_drive(struct pd_unit *disk)
{ {
struct gendisk *p; struct gendisk *p;
p = alloc_disk(1 << PD_BITS);
if (!p)
return;
strcpy(p->disk_name, disk->name);
p->fops = &pd_fops;
p->major = major;
p->first_minor = (disk - pd) << PD_BITS;
p->events = DISK_EVENT_MEDIA_CHANGE;
disk->gd = p;
p->private_data = disk;
memset(&disk->tag_set, 0, sizeof(disk->tag_set)); memset(&disk->tag_set, 0, sizeof(disk->tag_set));
disk->tag_set.ops = &pd_mq_ops; disk->tag_set.ops = &pd_mq_ops;
disk->tag_set.cmd_size = sizeof(struct pd_req); disk->tag_set.cmd_size = sizeof(struct pd_req);
...@@ -903,14 +891,21 @@ static void pd_probe_drive(struct pd_unit *disk) ...@@ -903,14 +891,21 @@ static void pd_probe_drive(struct pd_unit *disk)
if (blk_mq_alloc_tag_set(&disk->tag_set)) if (blk_mq_alloc_tag_set(&disk->tag_set))
return; return;
p->queue = blk_mq_init_queue(&disk->tag_set); p = blk_mq_alloc_disk(&disk->tag_set, disk);
if (IS_ERR(p->queue)) { if (!p) {
blk_mq_free_tag_set(&disk->tag_set); blk_mq_free_tag_set(&disk->tag_set);
p->queue = NULL;
return; return;
} }
disk->gd = p;
strcpy(p->disk_name, disk->name);
p->fops = &pd_fops;
p->major = major;
p->first_minor = (disk - pd) << PD_BITS;
p->minors = 1 << PD_BITS;
p->events = DISK_EVENT_MEDIA_CHANGE;
p->private_data = disk;
p->queue->queuedata = disk;
blk_queue_max_hw_sectors(p->queue, cluster); blk_queue_max_hw_sectors(p->queue, cluster);
blk_queue_bounce_limit(p->queue, BLK_BOUNCE_HIGH); blk_queue_bounce_limit(p->queue, BLK_BOUNCE_HIGH);
...@@ -1019,9 +1014,8 @@ static void __exit pd_exit(void) ...@@ -1019,9 +1014,8 @@ static void __exit pd_exit(void)
if (p) { if (p) {
disk->gd = NULL; disk->gd = NULL;
del_gendisk(p); del_gendisk(p);
blk_cleanup_queue(p->queue);
blk_mq_free_tag_set(&disk->tag_set); blk_mq_free_tag_set(&disk->tag_set);
put_disk(p); blk_cleanup_disk(p);
pi_release(disk->pi); pi_release(disk->pi);
} }
} }
......
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