[PATCH 08/26] pktcdvd: convert to blk_alloc_disk/blk_cleanup_disk

Christoph Hellwig
2021-05-21T05:52:12Z

Convert the pktcdvd driver to use the blk_alloc_disk and blk_cleanup_disk
helpers to simplify gendisk and request_queue allocation.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/block/pktcdvd.c | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index bd3556585122..f69b5c69c2a6 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -2711,19 +2711,17 @@ static int pkt_setup_dev(dev_t dev, dev_t* pkt_dev)
pd->write_congestion_off = write_congestion_off;

ret = -ENOMEM;
- disk = alloc_disk(1);
+ disk = blk_alloc_disk(NUMA_NO_NODE);
if (!disk)
goto out_mem;
pd->disk = disk;
disk->major = pktdev_major;
disk->first_minor = idx;
+ disk->minors = 1;
disk->fops = &pktcdvd_ops;
disk->flags = GENHD_FL_REMOVABLE;
strcpy(disk->disk_name, pd->name);
disk->private_data = pd;
- disk->queue = blk_alloc_queue(NUMA_NO_NODE);
- if (!disk->queue)
- goto out_mem2;

pd->pkt_dev = MKDEV(pktdev_major, idx);
ret = pkt_new_dev(pd, dev);
@@ -2746,7 +2744,7 @@ static int pkt_setup_dev(dev_t dev, dev_t* pkt_dev)
return 0;

out_mem2:
- put_disk(disk);
+ blk_cleanup_disk(disk);
out_mem:
mempool_exit(&pd->rb_pool);
kfree(pd);
@@ -2796,8 +2794,7 @@ static int pkt_remove_dev(dev_t pkt_dev)
pkt_dbg(1, pd, "writer unmapped\n");

del_gendisk(pd->disk);
- blk_cleanup_queue(pd->disk->queue);
- put_disk(pd->disk);
+ blk_cleanup_disk(pd->disk);

mempool_exit(&pd->rb_pool);
kfree(pd);
--
2.30.2