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authorChristoph Hellwig <hch@lst.de>2021-06-02 09:53:42 +0300
committerJens Axboe <axboe@kernel.dk>2021-06-11 11:54:43 -0600
commitc06cf063b3e5d590781fec6e88ccc259384dc157 (patch)
tree0eccfe491a7442d9fa301440b2d95b2251fba15e /drivers/s390
parent77567b25ab9f06c6477a153e58ace6897c6794d1 (diff)
scm_blk: 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: Christoph Hellwig <hch@lst.de> Tested-by: Niklas Schnelle <schnelle@linux.ibm.com> Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com> Link: https://lore.kernel.org/r/20210602065345.355274-28-hch@lst.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/block/scm_blk.c21
1 files changed, 6 insertions, 15 deletions
diff --git a/drivers/s390/block/scm_blk.c b/drivers/s390/block/scm_blk.c
index a4f6f2e62b1d..88cba6212ee2 100644
--- a/drivers/s390/block/scm_blk.c
+++ b/drivers/s390/block/scm_blk.c
@@ -462,12 +462,12 @@ int scm_blk_dev_setup(struct scm_blk_dev *bdev, struct scm_device *scmdev)
if (ret)
goto out;
- rq = blk_mq_init_queue(&bdev->tag_set);
- if (IS_ERR(rq)) {
- ret = PTR_ERR(rq);
+ bdev->gendisk = blk_mq_alloc_disk(&bdev->tag_set, scmdev);
+ if (IS_ERR(bdev->gendisk)) {
+ ret = PTR_ERR(bdev->gendisk);
goto out_tag;
}
- bdev->rq = rq;
+ rq = bdev->rq = bdev->gendisk->queue;
nr_max_blk = min(scmdev->nr_max_block,
(unsigned int) (PAGE_SIZE / sizeof(struct aidaw)));
@@ -477,17 +477,11 @@ int scm_blk_dev_setup(struct scm_blk_dev *bdev, struct scm_device *scmdev)
blk_queue_flag_set(QUEUE_FLAG_NONROT, rq);
blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, rq);
- bdev->gendisk = alloc_disk(SCM_NR_PARTS);
- if (!bdev->gendisk) {
- ret = -ENOMEM;
- goto out_queue;
- }
- rq->queuedata = scmdev;
bdev->gendisk->private_data = scmdev;
bdev->gendisk->fops = &scm_blk_devops;
- bdev->gendisk->queue = rq;
bdev->gendisk->major = scm_major;
bdev->gendisk->first_minor = devindex * SCM_NR_PARTS;
+ bdev->gendisk->minors = SCM_NR_PARTS;
len = snprintf(bdev->gendisk->disk_name, DISK_NAME_LEN, "scm");
if (devindex > 25) {
@@ -504,8 +498,6 @@ int scm_blk_dev_setup(struct scm_blk_dev *bdev, struct scm_device *scmdev)
device_add_disk(&scmdev->dev, bdev->gendisk, NULL);
return 0;
-out_queue:
- blk_cleanup_queue(rq);
out_tag:
blk_mq_free_tag_set(&bdev->tag_set);
out:
@@ -516,9 +508,8 @@ out:
void scm_blk_dev_cleanup(struct scm_blk_dev *bdev)
{
del_gendisk(bdev->gendisk);
- blk_cleanup_queue(bdev->gendisk->queue);
+ blk_cleanup_disk(bdev->gendisk);
blk_mq_free_tag_set(&bdev->tag_set);
- put_disk(bdev->gendisk);
}
void scm_blk_set_available(struct scm_blk_dev *bdev)