diff options
| author |   Christoph Hellwig <hch@lst.de> | 2021-06-02 09:53:45 +0300 |
|---|---|---|
| committer |   Jens Axboe <axboe@kernel.dk> | 2021-06-11 11:54:43 -0600 |
| commit | ec06c989bb45acc28c7633703685dd684b1b5d9c (patch) | |
| tree | cb033276aef33656c7602c94fedefc5e017f4be5 /drivers | |
| parent | ataflop: use blk_mq_alloc_disk and blk_cleanup_disk (diff) | |
| download | linux-dev-ec06c989bb45acc28c7633703685dd684b1b5d9c.tar.xz linux-dev-ec06c989bb45acc28c7633703685dd684b1b5d9c.zip | |
z2ram: 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>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Link: https://lore.kernel.org/r/20210602065345.355274-31-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/block/z2ram.c | 15 |
1 files changed, 4 insertions, 11 deletions
diff --git a/drivers/block/z2ram.c b/drivers/block/z2ram.c index c1d20818e649..a8968d9e759b 100644 --- a/drivers/block/z2ram.c +++ b/drivers/block/z2ram.c @@ -323,27 +323,20 @@ static const struct blk_mq_ops z2_mq_ops = { static int z2ram_register_disk(int minor) { - struct request_queue *q; struct gendisk *disk; - disk = alloc_disk(1); - if (!disk) - return -ENOMEM; - - q = blk_mq_init_queue(&tag_set); - if (IS_ERR(q)) { - put_disk(disk); - return PTR_ERR(q); - } + disk = blk_mq_alloc_disk(&tag_set, NULL); + if (IS_ERR(disk)) + return PTR_ERR(disk); disk->major = Z2RAM_MAJOR; disk->first_minor = minor; + disk->minors = 1; disk->fops = &z2_fops; if (minor) sprintf(disk->disk_name, "z2ram%d", minor); else sprintf(disk->disk_name, "z2ram"); - disk->queue = q; z2ram_gendisk[minor] = disk; add_disk(disk); |