diff options
| author | Christoph Hellwig <hch@lst.de> | 2021-06-02 09:53:20 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-06-11 11:53:02 -0600 |
| commit | 9c4f8971cc26cd485a39d02706533717eb3430dc (patch) | |
| tree | ab15370f73ad5f986f96911a4015d71380376c75 | |
| parent | 89a5f065653bcf7d8c3e4101e025e6c7b03339e8 (diff) | |
pcd: use blk_mq_alloc_disk
Use the blk_mq_alloc_disk API to simplify the gendisk and request_queue
allocation.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Link: https://lore.kernel.org/r/20210602065345.355274-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | drivers/block/paride/pcd.c | 19 |
1 files changed, 8 insertions, 11 deletions
diff --git a/drivers/block/paride/pcd.c b/drivers/block/paride/pcd.c index 70da8b86ce58..f9cdd11f02f5 100644 --- a/drivers/block/paride/pcd.c +++ b/drivers/block/paride/pcd.c @@ -309,21 +309,19 @@ static void pcd_init_units(void) pcd_drive_count = 0; for (unit = 0, cd = pcd; unit < PCD_UNITS; unit++, cd++) { - struct gendisk *disk = alloc_disk(1); + struct gendisk *disk; - if (!disk) + if (blk_mq_alloc_sq_tag_set(&cd->tag_set, &pcd_mq_ops, 1, + BLK_MQ_F_SHOULD_MERGE)) continue; - disk->queue = blk_mq_init_sq_queue(&cd->tag_set, &pcd_mq_ops, - 1, BLK_MQ_F_SHOULD_MERGE); - if (IS_ERR(disk->queue)) { - disk->queue = NULL; - put_disk(disk); + disk = blk_mq_alloc_disk(&cd->tag_set, cd); + if (IS_ERR(disk)) { + blk_mq_free_tag_set(&cd->tag_set); continue; } INIT_LIST_HEAD(&cd->rq_list); - disk->queue->queuedata = cd; blk_queue_bounce_limit(disk->queue, BLK_BOUNCE_HIGH); cd->disk = disk; cd->pi = &cd->pia; @@ -343,6 +341,7 @@ static void pcd_init_units(void) cd->info.mask = 0; disk->major = major; disk->first_minor = unit; + disk->minors = 1; strcpy(disk->disk_name, cd->name); /* umm... */ disk->fops = &pcd_bdops; disk->flags = GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE; @@ -759,10 +758,8 @@ static int pcd_detect(void) for (unit = 0, cd = pcd; unit < PCD_UNITS; unit++, cd++) { if (!cd->disk) continue; - blk_cleanup_queue(cd->disk->queue); - cd->disk->queue = NULL; + blk_cleanup_disk(cd->disk); blk_mq_free_tag_set(&cd->tag_set); - put_disk(cd->disk); } pi_unregister_driver(par_drv); return -1; |