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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


WARNING: multiple messages have this Message-ID
From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: "Justin Sanders" <justin@coraid.com>,
	"Vignesh Raghavendra" <vigneshr@ti.com>,
	"Mike Snitzer" <snitzer@redhat.com>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	"Jason Wang" <jasowang@redhat.com>,
	virtualization@lists.linux-foundation.org, dm-devel@redhat.com,
	"Md. Haris Iqbal" <haris.iqbal@ionos.com>,
	"Miquel Raynal" <miquel.raynal@bootlin.com>,
	"Jack Wang" <jinpu.wang@ionos.com>,
	"Tim Waugh" <tim@cyberelk.net>,
	linux-s390@vger.kernel.org, "Alex Dubov" <oakad@yahoo.com>,
	"Richard Weinberger" <richard@nod.at>,
	"Christian Borntraeger" <borntraeger@de.ibm.com>,
	xen-devel@lists.xenproject.org,
	"Ilya Dryomov" <idryomov@gmail.com>,
	"Vasily Gorbik" <gor@linux.ibm.com>,
	"Konrad Rzeszutek Wilk" <konrad.wilk@oracle.com>,
	"Heiko Carstens" <hca@linux.ibm.com>,
	"Josef Bacik" <josef@toxicpanda.com>,
	"Denis Efremov" <efremov@linux.com>,
	nbd@other.debian.org, linux-block@vger.kernel.org,
	ceph-devel@vger.kernel.org,
	"Maxim Levitsky" <maximlevitsky@gmail.com>,
	"Geoff Levand" <geoff@infradead.org>,
	linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org,
	linuxppc-dev@lists.ozlabs.org,
	"Roger Pau Monné" <roger.pau@citrix.com>
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


WARNING: multiple messages have this Message-ID
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


______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/

WARNING: multiple messages have this Message-ID
From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: "Justin Sanders" <justin@coraid.com>,
	"Vignesh Raghavendra" <vigneshr@ti.com>,
	"Mike Snitzer" <snitzer@redhat.com>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	virtualization@lists.linux-foundation.org, dm-devel@redhat.com,
	"Md. Haris Iqbal" <haris.iqbal@ionos.com>,
	"Miquel Raynal" <miquel.raynal@bootlin.com>,
	"Jack Wang" <jinpu.wang@ionos.com>,
	"Tim Waugh" <tim@cyberelk.net>,
	linux-s390@vger.kernel.org, "Alex Dubov" <oakad@yahoo.com>,
	"Richard Weinberger" <richard@nod.at>,
	"Christian Borntraeger" <borntraeger@de.ibm.com>,
	xen-devel@lists.xenproject.org,
	"Ilya Dryomov" <idryomov@gmail.com>,
	"Vasily Gorbik" <gor@linux.ibm.com>,
	"Konrad Rzeszutek Wilk" <konrad.wilk@oracle.com>,
	"Heiko Carstens" <hca@linux.ibm.com>,
	"Josef Bacik" <josef@toxicpanda.com>,
	"Denis Efremov" <efremov@linux.com>,
	nbd@other.debian.org, linux-block@vger.kernel.org,
	ceph-devel@vger.kernel.org,
	"Maxim Levitsky" <maximlevitsky@gmail.com>,
	"Geoff Levand" <geoff@infradead.org>,
	linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org,
	linuxppc-dev@lists.ozlabs.org,
	"Roger Pau Monné" <roger.pau@citrix.com>
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

_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

WARNING: multiple messages have this Message-ID
From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: "Justin Sanders" <justin@coraid.com>,
	"Vignesh Raghavendra" <vigneshr@ti.com>,
	"Mike Snitzer" <snitzer@redhat.com>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	"Jason Wang" <jasowang@redhat.com>,
	virtualization@lists.linux-foundation.org, dm-devel@redhat.com,
	"Md. Haris Iqbal" <haris.iqbal@ionos.com>,
	"Miquel Raynal" <miquel.raynal@bootlin.com>,
	"Jack Wang" <jinpu.wang@ionos.com>,
	"Tim Waugh" <tim@cyberelk.net>,
	linux-s390@vger.kernel.org, "Alex Dubov" <oakad@yahoo.com>,
	"Richard Weinberger" <richard@nod.at>,
	"Christian Borntraeger" <borntraeger@de.ibm.com>,
	xen-devel@lists.xenproject.org,
	"Ilya Dryomov" <idryomov@gmail.com>,
	"Vasily Gorbik" <gor@linux.ibm.com>,
	"Konrad Rzeszutek Wilk" <konrad.wilk@oracle.com>,
	"Heiko Carstens" <hca@linux.ibm.com>,
	"Josef Bacik" <josef@toxicpanda.com>,
	"Denis Efremov" <efremov@linux.com>,
	nbd@other.debian.org, linux-block@vger.kernel.org,
	ceph-devel@vger.kernel.org,
	"Maxim Levitsky" <maximlevitsky@gmail.com>,
	"Geoff Levand" <geoff@infradead.org>,
	linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org,
	linuxppc-dev@lists.ozlabs.org,
	"Roger Pau Monné" <roger.pau@citrix.com>
Subject: [dm-devel] [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

--
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dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel


  parent reply	other threads:[~2021-06-02  6:55 UTC|newest]

Thread overview: 226+ 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 ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53 ` Christoph Hellwig
2021-06-02  6:53 ` Christoph Hellwig
2021-06-02  6:53 ` 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   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` 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   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53 ` [PATCH 03/30] blk-mq: add the blk_mq_alloc_disk APIs Christoph Hellwig
2021-06-02  6:53   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-03  0:03   ` Chaitanya Kulkarni
2021-06-03  0:03     ` [dm-devel] " Chaitanya Kulkarni
2021-06-03  0:03     ` Chaitanya Kulkarni
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   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53 ` [PATCH 05/30] pcd: " Christoph Hellwig
2021-06-02  6:53   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53 ` [PATCH 06/30] pf: " Christoph Hellwig
2021-06-02  6:53   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53 ` [PATCH 07/30] ms_block: " Christoph Hellwig
2021-06-02  6:53   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-03 15:36   ` Ulf Hansson
2021-06-03 15:36     ` [dm-devel] " Ulf Hansson
2021-06-03 15:36     ` Ulf Hansson
2021-06-03 15:36     ` Ulf Hansson
2021-06-03 15:36     ` Ulf Hansson
2021-06-02  6:53 ` [PATCH 08/30] mspro: " Christoph Hellwig
2021-06-02  6:53   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-03 15:36   ` Ulf Hansson
2021-06-03 15:36     ` [dm-devel] " Ulf Hansson
2021-06-03 15:36     ` Ulf Hansson
2021-06-03 15:36     ` Ulf Hansson
2021-06-03 15:36     ` Ulf Hansson
2021-06-02  6:53 ` [PATCH 09/30] mtd_blkdevs: " Christoph Hellwig
2021-06-02  6:53   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
     [not found]   ` <CGME20210615154746eucas1p1321b6f1cf38d21899632e132cf025e61@eucas1p1.samsung.com>
2021-06-15 15:47     ` Marek Szyprowski
2021-06-15 15:47       ` [dm-devel] " Marek Szyprowski
2021-06-15 15:47       ` Marek Szyprowski
2021-06-15 15:47       ` Marek Szyprowski
2021-06-15 15:58       ` Christoph Hellwig
2021-06-15 15:58         ` [dm-devel] " Christoph Hellwig
2021-06-15 15:58         ` Christoph Hellwig
2021-06-15 15:58         ` Christoph Hellwig
2021-06-15 15:58         ` Christoph Hellwig
2021-06-15 16:28         ` Marek Szyprowski
2021-06-15 16:28           ` [dm-devel] " Marek Szyprowski
2021-06-15 16:28           ` Marek Szyprowski
2021-06-15 16:28           ` Marek Szyprowski
2021-06-02  6:53 ` [PATCH 10/30] ps3disk: " Christoph Hellwig
2021-06-02  6:53   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-06 15:58   ` Geoff Levand
2021-06-06 15:58     ` [dm-devel] " Geoff Levand
2021-06-06 15:58     ` Geoff Levand
2021-06-06 15:58     ` Geoff Levand
2021-06-02  6:53 ` [PATCH 11/30] swim3: " Christoph Hellwig
2021-06-02  6:53   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53 ` [PATCH 12/30] swim: " Christoph Hellwig
2021-06-02  6:53   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53 ` Christoph Hellwig [this message]
2021-06-02  6:53   ` [dm-devel] [PATCH 13/30] sunvdc: " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53 ` [PATCH 14/30] gdrom: " Christoph Hellwig
2021-06-02  6:53   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53 ` [PATCH 15/30] blk-mq: remove blk_mq_init_sq_queue Christoph Hellwig
2021-06-02  6:53   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-03  0:04   ` Chaitanya Kulkarni
2021-06-03  0:04     ` [dm-devel] " Chaitanya Kulkarni
2021-06-03  0:04     ` Chaitanya Kulkarni
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   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53 ` [PATCH 17/30] floppy: " Christoph Hellwig
2021-06-02  6:53   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53 ` [PATCH 18/30] loop: " Christoph Hellwig
2021-06-02  6:53   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-03  0:05   ` Chaitanya Kulkarni
2021-06-03  0:05     ` [dm-devel] " Chaitanya Kulkarni
2021-06-03  0:05     ` Chaitanya Kulkarni
2021-06-03  0:05     ` Chaitanya Kulkarni
2021-06-02  6:53 ` [PATCH 19/30] nbd: " Christoph Hellwig
2021-06-02  6:53   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53 ` [PATCH 20/30] nullb: use blk_mq_alloc_disk Christoph Hellwig
2021-06-02  6:53   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-03  0:10   ` Chaitanya Kulkarni
2021-06-03  0:10     ` [dm-devel] " Chaitanya Kulkarni
2021-06-03  0:10     ` Chaitanya Kulkarni
2021-06-03  0:10     ` Chaitanya Kulkarni
2021-06-08  5:39     ` Christoph Hellwig
2021-06-08  5:39       ` [dm-devel] " Christoph Hellwig
2021-06-08  5:39       ` Christoph Hellwig
2021-06-08  5:39       ` Christoph Hellwig
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   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53 ` [PATCH 22/30] rbd: " Christoph Hellwig
2021-06-02  6:53   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53 ` [PATCH 23/30] rnbd: " Christoph Hellwig
2021-06-02  6:53   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  7:49   ` Jinpu Wang
2021-06-02  7:49     ` [dm-devel] " Jinpu Wang
2021-06-02  7:49     ` Jinpu Wang
2021-06-02  7:49     ` Jinpu Wang
2021-06-02  6:53 ` [PATCH 24/30] sx8: " Christoph Hellwig
2021-06-02  6:53   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53 ` [PATCH 25/30] xen-blkfront: " Christoph Hellwig
2021-06-02  6:53   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53 ` [PATCH 26/30] ubi: " Christoph Hellwig
2021-06-02  6:53   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53 ` [PATCH 27/30] scm_blk: " Christoph Hellwig
2021-06-02  6:53   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02 12:02   ` Niklas Schnelle
2021-06-02 12:02     ` [dm-devel] " Niklas Schnelle
2021-06-02 12:02     ` Niklas Schnelle
2021-06-02 12:02     ` Niklas Schnelle
2021-06-02  6:53 ` [PATCH 28/30] amiflop: " Christoph Hellwig
2021-06-02  6:53   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53 ` [PATCH 29/30] ataflop: " Christoph Hellwig
2021-06-02  6:53   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53 ` [PATCH 30/30] z2ram: " Christoph Hellwig
2021-06-02  6:53   ` [dm-devel] " Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-02  6:53   ` Christoph Hellwig
2021-06-04 15:58 ` simplify gendisk and request_queue allocation for blk-mq based drivers Konrad Rzeszutek Wilk
2021-06-04 15:58   ` [dm-devel] " Konrad Rzeszutek Wilk
2021-06-04 15:58   ` Konrad Rzeszutek Wilk
2021-06-04 15:58   ` Konrad Rzeszutek Wilk
2021-06-04 15:58   ` Konrad Rzeszutek Wilk
2021-06-05 14:02   ` Christoph Hellwig
2021-06-05 14:02     ` [dm-devel] " Christoph Hellwig
2021-06-05 14:02     ` Christoph Hellwig
2021-06-05 14:02     ` Christoph Hellwig
2021-06-05 14:02     ` Christoph Hellwig
2021-06-11 17:55 ` Jens Axboe
2021-06-11 17:55   ` [dm-devel] " Jens Axboe
2021-06-11 17:55   ` Jens Axboe
2021-06-11 17:55   ` Jens Axboe
2021-06-11 17:55   ` Jens Axboe

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