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authorChristoph Hellwig <hch@lst.de>2021-06-02 09:53:20 +0300
committerJens Axboe <axboe@kernel.dk>2021-06-11 20:53:02 +0300
commit9c4f8971cc26cd485a39d02706533717eb3430dc (patch)
treeab15370f73ad5f986f96911a4015d71380376c75 /drivers/block/paride
parent89a5f065653bcf7d8c3e4101e025e6c7b03339e8 (diff)
downloadlinux-9c4f8971cc26cd485a39d02706533717eb3430dc.tar.xz
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>
Diffstat (limited to 'drivers/block/paride')
-rw-r--r--drivers/block/paride/pcd.c19
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;