From: Christoph Hellwig <hch@lst.de>
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 13/30] sunvdc: use blk_mq_alloc_disk
Date: Wed, 2 Jun 2021 09:53:28 +0300 [thread overview]
Message-ID: <20210602065345.355274-14-hch@lst.de> (raw)
In-Reply-To: <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/sunvdc.c | 47 ++++++++++++------------------------------
1 file changed, 13 insertions(+), 34 deletions(-)
diff --git a/drivers/block/sunvdc.c b/drivers/block/sunvdc.c
index 39aeebc6837d..c53b38578bb7 100644
--- a/drivers/block/sunvdc.c
+++ b/drivers/block/sunvdc.c
@@ -780,27 +780,6 @@ static const struct blk_mq_ops vdc_mq_ops = {
.queue_rq = vdc_queue_rq,
};
-static void cleanup_queue(struct request_queue *q)
-{
- struct vdc_port *port = q->queuedata;
-
- blk_cleanup_queue(q);
- blk_mq_free_tag_set(&port->tag_set);
-}
-
-static struct request_queue *init_queue(struct vdc_port *port)
-{
- struct request_queue *q;
-
- q = blk_mq_init_sq_queue(&port->tag_set, &vdc_mq_ops, VDC_TX_RING_SIZE,
- BLK_MQ_F_SHOULD_MERGE);
- if (IS_ERR(q))
- return q;
-
- q->queuedata = port;
- return q;
-}
-
static int probe_disk(struct vdc_port *port)
{
struct request_queue *q;
@@ -838,21 +817,21 @@ static int probe_disk(struct vdc_port *port)
(u64)geom.num_sec);
}
- q = init_queue(port);
- if (IS_ERR(q)) {
- printk(KERN_ERR PFX "%s: Could not allocate queue.\n",
- port->vio.name);
- return PTR_ERR(q);
- }
- g = alloc_disk(1 << PARTITION_SHIFT);
- if (!g) {
+ err = blk_mq_alloc_sq_tag_set(&port->tag_set, &vdc_mq_ops,
+ VDC_TX_RING_SIZE, BLK_MQ_F_SHOULD_MERGE);
+ if (err)
+ return err;
+
+ g = blk_mq_alloc_disk(&port->tag_set, port);
+ if (IS_ERR(g)) {
printk(KERN_ERR PFX "%s: Could not allocate gendisk.\n",
port->vio.name);
- cleanup_queue(q);
- return -ENOMEM;
+ blk_mq_free_tag_set(&port->tag_set);
+ return PTR_ERR(g);
}
port->disk = g;
+ q = g->queue;
/* Each segment in a request is up to an aligned page in size. */
blk_queue_segment_boundary(q, PAGE_SIZE - 1);
@@ -862,6 +841,7 @@ static int probe_disk(struct vdc_port *port)
blk_queue_max_hw_sectors(q, port->max_xfer_size);
g->major = vdc_major;
g->first_minor = port->vio.vdev->dev_no << PARTITION_SHIFT;
+ g->minors = 1 << PARTITION_SHIFT;
strcpy(g->disk_name, port->disk_name);
g->fops = &vdc_fops;
@@ -1083,9 +1063,8 @@ static int vdc_port_remove(struct vio_dev *vdev)
del_timer_sync(&port->vio.timer);
del_gendisk(port->disk);
- cleanup_queue(port->disk->queue);
- put_disk(port->disk);
- port->disk = NULL;
+ blk_cleanup_disk(port->disk);
+ blk_mq_free_tag_set(&port->tag_set);
vdc_free_tx_ring(port);
vio_ldc_free(&port->vio);
--
2.30.2
next prev parent reply other threads:[~2021-06-02 6:55 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-02 6:53 simplify gendisk and request_queue allocation for blk-mq based drivers Christoph Hellwig
2021-06-02 6:53 ` [PATCH 01/30] blk-mq: factor out a blk_mq_alloc_sq_tag_set helper Christoph Hellwig
2021-06-02 6:53 ` [PATCH 02/30] blk-mq: improve the blk_mq_init_allocated_queue interface Christoph Hellwig
2021-06-02 6:53 ` [PATCH 03/30] blk-mq: add the blk_mq_alloc_disk APIs Christoph Hellwig
2021-06-03 0:03 ` Chaitanya Kulkarni
2021-06-02 6:53 ` [PATCH 04/30] virtio-blk: use blk_mq_alloc_disk Christoph Hellwig
2021-06-02 6:53 ` [PATCH 05/30] pcd: " Christoph Hellwig
2021-06-02 6:53 ` [PATCH 06/30] pf: " Christoph Hellwig
2021-06-02 6:53 ` [PATCH 07/30] ms_block: " Christoph Hellwig
2021-06-03 15:36 ` Ulf Hansson
2021-06-02 6:53 ` [PATCH 08/30] mspro: " Christoph Hellwig
2021-06-03 15:36 ` Ulf Hansson
2021-06-02 6:53 ` [PATCH 09/30] mtd_blkdevs: " Christoph Hellwig
[not found] ` <CGME20210615154746eucas1p1321b6f1cf38d21899632e132cf025e61@eucas1p1.samsung.com>
2021-06-15 15:47 ` Marek Szyprowski
2021-06-15 15:58 ` Christoph Hellwig
2021-06-15 16:28 ` Marek Szyprowski
2021-06-02 6:53 ` [PATCH 10/30] ps3disk: " Christoph Hellwig
2021-06-06 15:58 ` Geoff Levand
2021-06-02 6:53 ` [PATCH 11/30] swim3: " Christoph Hellwig
2021-06-02 6:53 ` [PATCH 12/30] swim: " Christoph Hellwig
2021-06-02 6:53 ` Christoph Hellwig [this message]
2021-06-02 6:53 ` [PATCH 14/30] gdrom: " Christoph Hellwig
2021-06-02 6:53 ` [PATCH 15/30] blk-mq: remove blk_mq_init_sq_queue Christoph Hellwig
2021-06-03 0:04 ` Chaitanya Kulkarni
2021-06-02 6:53 ` [PATCH 16/30] aoe: use blk_mq_alloc_disk and blk_cleanup_disk Christoph Hellwig
2021-06-02 6:53 ` [PATCH 17/30] floppy: " Christoph Hellwig
2021-06-02 6:53 ` [PATCH 18/30] loop: " Christoph Hellwig
2021-06-03 0:05 ` Chaitanya Kulkarni
2021-06-02 6:53 ` [PATCH 19/30] nbd: " Christoph Hellwig
2021-06-02 6:53 ` [PATCH 20/30] nullb: use blk_mq_alloc_disk Christoph Hellwig
2021-06-03 0:10 ` Chaitanya Kulkarni
2021-06-08 5:39 ` Christoph Hellwig
2021-06-02 6:53 ` [PATCH 21/30] pd: use blk_mq_alloc_disk and blk_cleanup_disk Christoph Hellwig
2021-06-02 6:53 ` [PATCH 22/30] rbd: " Christoph Hellwig
2021-06-02 6:53 ` [PATCH 23/30] rnbd: " Christoph Hellwig
2021-06-02 7:49 ` Jinpu Wang
2021-06-02 6:53 ` [PATCH 24/30] sx8: " Christoph Hellwig
2021-06-02 6:53 ` [PATCH 25/30] xen-blkfront: " Christoph Hellwig
2021-06-02 6:53 ` [PATCH 26/30] ubi: " Christoph Hellwig
2021-06-02 6:53 ` [PATCH 27/30] scm_blk: " Christoph Hellwig
2021-06-02 12:02 ` Niklas Schnelle
2021-06-02 6:53 ` [PATCH 28/30] amiflop: " Christoph Hellwig
2021-06-02 6:53 ` [PATCH 29/30] ataflop: " Christoph Hellwig
2021-06-02 6:53 ` [PATCH 30/30] z2ram: " Christoph Hellwig
2021-06-04 15:58 ` simplify gendisk and request_queue allocation for blk-mq based drivers Konrad Rzeszutek Wilk
2021-06-05 14:02 ` Christoph Hellwig
2021-06-11 17:55 ` Jens Axboe
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