[PATCH 06/30] pf: use blk_mq_alloc_disk
- To: Jens Axboe <axboe@kernel.dk>
- Cc: Justin Sanders <justin@coraid.com>, Denis Efremov <efremov@linux.com>, Josef Bacik <josef@toxicpanda.com>, Tim Waugh <tim@cyberelk.net>, Geoff Levand <geoff@infradead.org>, Ilya Dryomov <idryomov@gmail.com>, "Md. Haris Iqbal" <haris.iqbal@ionos.com>, Jack Wang <jinpu.wang@ionos.com>, "Michael S. Tsirkin" <mst@redhat.com>, Jason Wang <jasowang@redhat.com>, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>, Roger Pau Monné <roger.pau@citrix.com>, Mike Snitzer <snitzer@redhat.com>, Maxim Levitsky <maximlevitsky@gmail.com>, Alex Dubov <oakad@yahoo.com>, Miquel Raynal <miquel.raynal@bootlin.com>, Richard Weinberger <richard@nod.at>, Vignesh Raghavendra <vigneshr@ti.com>, Heiko Carstens <hca@linux.ibm.com>, Vasily Gorbik <gor@linux.ibm.com>, Christian Borntraeger <borntraeger@de.ibm.com>, dm-devel@redhat.com, linux-block@vger.kernel.org, nbd@other.debian.org, linuxppc-dev@lists.ozlabs.org, ceph-devel@vger.kernel.org, virtualization@lists.linux-foundation.org, xen-devel@lists.xenproject.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, linux-s390@vger.kernel.org
- Subject: [PATCH 06/30] pf: use blk_mq_alloc_disk
- From: Christoph Hellwig <hch@lst.de>
- Date: Wed, 2 Jun 2021 09:53:21 +0300
- Message-id: <[🔎] 20210602065345.355274-7-hch@lst.de>
- In-reply-to: <[🔎] 20210602065345.355274-1-hch@lst.de>
- References: <[🔎] 20210602065345.355274-1-hch@lst.de>
Use the blk_mq_alloc_disk API to simplify the gendisk and request_queue
allocation.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/block/paride/pf.c | 18 +++++++-----------
1 file changed, 7 insertions(+), 11 deletions(-)
diff --git a/drivers/block/paride/pf.c b/drivers/block/paride/pf.c
index bb09f21ce21a..d5b9c88ba76f 100644
--- a/drivers/block/paride/pf.c
+++ b/drivers/block/paride/pf.c
@@ -294,20 +294,17 @@ static void __init pf_init_units(void)
for (unit = 0, pf = units; unit < PF_UNITS; unit++, pf++) {
struct gendisk *disk;
- disk = alloc_disk(1);
- if (!disk)
+ if (blk_mq_alloc_sq_tag_set(&pf->tag_set, &pf_mq_ops, 1,
+ BLK_MQ_F_SHOULD_MERGE))
continue;
- disk->queue = blk_mq_init_sq_queue(&pf->tag_set, &pf_mq_ops,
- 1, BLK_MQ_F_SHOULD_MERGE);
- if (IS_ERR(disk->queue)) {
- disk->queue = NULL;
- put_disk(disk);
+ disk = blk_mq_alloc_disk(&pf->tag_set, pf);
+ if (IS_ERR(disk)) {
+ blk_mq_free_tag_set(&pf->tag_set);
continue;
}
INIT_LIST_HEAD(&pf->rq_list);
- disk->queue->queuedata = pf;
blk_queue_max_segments(disk->queue, cluster);
blk_queue_bounce_limit(disk->queue, BLK_BOUNCE_HIGH);
pf->disk = disk;
@@ -318,6 +315,7 @@ static void __init pf_init_units(void)
snprintf(pf->name, PF_NAMELEN, "%s%d", name, unit);
disk->major = major;
disk->first_minor = unit;
+ disk->minors = 1;
strcpy(disk->disk_name, pf->name);
disk->fops = &pf_fops;
disk->events = DISK_EVENT_MEDIA_CHANGE;
@@ -766,10 +764,8 @@ static int pf_detect(void)
for (pf = units, unit = 0; unit < PF_UNITS; pf++, unit++) {
if (!pf->disk)
continue;
- blk_cleanup_queue(pf->disk->queue);
- pf->disk->queue = NULL;
+ blk_cleanup_disk(pf->disk);
blk_mq_free_tag_set(&pf->tag_set);
- put_disk(pf->disk);
}
pi_unregister_driver(par_drv);
return -1;
--
2.30.2
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