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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 29/30] ataflop: use blk_mq_alloc_disk and blk_cleanup_disk
Date: Wed,  2 Jun 2021 09:53:44 +0300	[thread overview]
Message-ID: <20210602065345.355274-30-hch@lst.de> (raw)
In-Reply-To: <20210602065345.355274-1-hch@lst.de>

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>
---
 drivers/block/ataflop.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c
index d601e49f80e0..a093644ac39f 100644
--- a/drivers/block/ataflop.c
+++ b/drivers/block/ataflop.c
@@ -1968,22 +1968,14 @@ static const struct blk_mq_ops ataflop_mq_ops = {
 static int ataflop_alloc_disk(unsigned int drive, unsigned int type)
 {
 	struct gendisk *disk;
-	int ret;
-
-	disk = alloc_disk(1);
-	if (!disk)
-		return -ENOMEM;
 
-	disk->queue = blk_mq_init_queue(&unit[drive].tag_set);
-	if (IS_ERR(disk->queue)) {
-		ret = PTR_ERR(disk->queue);
-		disk->queue = NULL;
-		put_disk(disk);
-		return ret;
-	}
+	disk = blk_mq_alloc_disk(&unit[drive].tag_set, NULL);
+	if (IS_ERR(disk))
+		return PTR_ERR(disk);
 
 	disk->major = FLOPPY_MAJOR;
 	disk->first_minor = drive + (type << 2);
+	disk->minors = 1;
 	sprintf(disk->disk_name, "fd%d", drive);
 	disk->fops = &floppy_fops;
 	disk->events = DISK_EVENT_MEDIA_CHANGE;
-- 
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 29/30] ataflop: use blk_mq_alloc_disk and blk_cleanup_disk
Date: Wed,  2 Jun 2021 09:53:44 +0300	[thread overview]
Message-ID: <20210602065345.355274-30-hch@lst.de> (raw)
In-Reply-To: <20210602065345.355274-1-hch@lst.de>

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>
---
 drivers/block/ataflop.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c
index d601e49f80e0..a093644ac39f 100644
--- a/drivers/block/ataflop.c
+++ b/drivers/block/ataflop.c
@@ -1968,22 +1968,14 @@ static const struct blk_mq_ops ataflop_mq_ops = {
 static int ataflop_alloc_disk(unsigned int drive, unsigned int type)
 {
 	struct gendisk *disk;
-	int ret;
-
-	disk = alloc_disk(1);
-	if (!disk)
-		return -ENOMEM;
 
-	disk->queue = blk_mq_init_queue(&unit[drive].tag_set);
-	if (IS_ERR(disk->queue)) {
-		ret = PTR_ERR(disk->queue);
-		disk->queue = NULL;
-		put_disk(disk);
-		return ret;
-	}
+	disk = blk_mq_alloc_disk(&unit[drive].tag_set, NULL);
+	if (IS_ERR(disk))
+		return PTR_ERR(disk);
 
 	disk->major = FLOPPY_MAJOR;
 	disk->first_minor = drive + (type << 2);
+	disk->minors = 1;
 	sprintf(disk->disk_name, "fd%d", drive);
 	disk->fops = &floppy_fops;
 	disk->events = DISK_EVENT_MEDIA_CHANGE;
-- 
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 29/30] ataflop: use blk_mq_alloc_disk and blk_cleanup_disk
Date: Wed,  2 Jun 2021 09:53:44 +0300	[thread overview]
Message-ID: <20210602065345.355274-30-hch@lst.de> (raw)
In-Reply-To: <20210602065345.355274-1-hch@lst.de>

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>
---
 drivers/block/ataflop.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c
index d601e49f80e0..a093644ac39f 100644
--- a/drivers/block/ataflop.c
+++ b/drivers/block/ataflop.c
@@ -1968,22 +1968,14 @@ static const struct blk_mq_ops ataflop_mq_ops = {
 static int ataflop_alloc_disk(unsigned int drive, unsigned int type)
 {
 	struct gendisk *disk;
-	int ret;
-
-	disk = alloc_disk(1);
-	if (!disk)
-		return -ENOMEM;
 
-	disk->queue = blk_mq_init_queue(&unit[drive].tag_set);
-	if (IS_ERR(disk->queue)) {
-		ret = PTR_ERR(disk->queue);
-		disk->queue = NULL;
-		put_disk(disk);
-		return ret;
-	}
+	disk = blk_mq_alloc_disk(&unit[drive].tag_set, NULL);
+	if (IS_ERR(disk))
+		return PTR_ERR(disk);
 
 	disk->major = FLOPPY_MAJOR;
 	disk->first_minor = drive + (type << 2);
+	disk->minors = 1;
 	sprintf(disk->disk_name, "fd%d", drive);
 	disk->fops = &floppy_fops;
 	disk->events = DISK_EVENT_MEDIA_CHANGE;
-- 
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 29/30] ataflop: use blk_mq_alloc_disk and blk_cleanup_disk
Date: Wed,  2 Jun 2021 09:53:44 +0300	[thread overview]
Message-ID: <20210602065345.355274-30-hch@lst.de> (raw)
In-Reply-To: <20210602065345.355274-1-hch@lst.de>

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>
---
 drivers/block/ataflop.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c
index d601e49f80e0..a093644ac39f 100644
--- a/drivers/block/ataflop.c
+++ b/drivers/block/ataflop.c
@@ -1968,22 +1968,14 @@ static const struct blk_mq_ops ataflop_mq_ops = {
 static int ataflop_alloc_disk(unsigned int drive, unsigned int type)
 {
 	struct gendisk *disk;
-	int ret;
-
-	disk = alloc_disk(1);
-	if (!disk)
-		return -ENOMEM;
 
-	disk->queue = blk_mq_init_queue(&unit[drive].tag_set);
-	if (IS_ERR(disk->queue)) {
-		ret = PTR_ERR(disk->queue);
-		disk->queue = NULL;
-		put_disk(disk);
-		return ret;
-	}
+	disk = blk_mq_alloc_disk(&unit[drive].tag_set, NULL);
+	if (IS_ERR(disk))
+		return PTR_ERR(disk);
 
 	disk->major = FLOPPY_MAJOR;
 	disk->first_minor = drive + (type << 2);
+	disk->minors = 1;
 	sprintf(disk->disk_name, "fd%d", drive);
 	disk->fops = &floppy_fops;
 	disk->events = DISK_EVENT_MEDIA_CHANGE;
-- 
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 29/30] ataflop: use blk_mq_alloc_disk and blk_cleanup_disk
Date: Wed,  2 Jun 2021 09:53:44 +0300	[thread overview]
Message-ID: <20210602065345.355274-30-hch@lst.de> (raw)
In-Reply-To: <20210602065345.355274-1-hch@lst.de>

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>
---
 drivers/block/ataflop.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c
index d601e49f80e0..a093644ac39f 100644
--- a/drivers/block/ataflop.c
+++ b/drivers/block/ataflop.c
@@ -1968,22 +1968,14 @@ static const struct blk_mq_ops ataflop_mq_ops = {
 static int ataflop_alloc_disk(unsigned int drive, unsigned int type)
 {
 	struct gendisk *disk;
-	int ret;
-
-	disk = alloc_disk(1);
-	if (!disk)
-		return -ENOMEM;
 
-	disk->queue = blk_mq_init_queue(&unit[drive].tag_set);
-	if (IS_ERR(disk->queue)) {
-		ret = PTR_ERR(disk->queue);
-		disk->queue = NULL;
-		put_disk(disk);
-		return ret;
-	}
+	disk = blk_mq_alloc_disk(&unit[drive].tag_set, NULL);
+	if (IS_ERR(disk))
+		return PTR_ERR(disk);
 
 	disk->major = FLOPPY_MAJOR;
 	disk->first_minor = drive + (type << 2);
+	disk->minors = 1;
 	sprintf(disk->disk_name, "fd%d", drive);
 	disk->fops = &floppy_fops;
 	disk->events = DISK_EVENT_MEDIA_CHANGE;
-- 
2.30.2

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


  parent reply	other threads:[~2021-06-02  6:56 UTC|newest]

Thread overview: 226+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-02  6:53 [dm-devel] simplify gendisk and request_queue allocation for blk-mq based drivers Christoph Hellwig
2021-06-02  6:53 ` [dm-devel] [PATCH 01/30] blk-mq: factor out a blk_mq_alloc_sq_tag_set helper Christoph Hellwig
2021-06-02  6:53 ` [dm-devel] [PATCH 02/30] blk-mq: improve the blk_mq_init_allocated_queue interface Christoph Hellwig
2021-06-02  6:53 ` [dm-devel] [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 ` [dm-devel] [PATCH 04/30] virtio-blk: use blk_mq_alloc_disk Christoph Hellwig
2021-06-02  6:53 ` [dm-devel] [PATCH 05/30] pcd: " Christoph Hellwig
2021-06-02  6:53 ` [dm-devel] [PATCH 06/30] pf: " Christoph Hellwig
2021-06-02  6:53 ` [dm-devel] [PATCH 07/30] ms_block: " Christoph Hellwig
2021-06-03 15:36   ` Ulf Hansson
2021-06-02  6:53 ` [dm-devel] [PATCH 08/30] mspro: " Christoph Hellwig
2021-06-03 15:36   ` Ulf Hansson
2021-06-02  6:53 ` [dm-devel] [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 ` [dm-devel] [PATCH 10/30] ps3disk: " Christoph Hellwig
2021-06-06 15:58   ` Geoff Levand
2021-06-02  6:53 ` [dm-devel] [PATCH 11/30] swim3: " Christoph Hellwig
2021-06-02  6:53 ` [dm-devel] [PATCH 12/30] swim: " Christoph Hellwig
2021-06-02  6:53 ` [dm-devel] [PATCH 13/30] sunvdc: " Christoph Hellwig
2021-06-02  6:53 ` [dm-devel] [PATCH 14/30] gdrom: " Christoph Hellwig
2021-06-02  6:53 ` [dm-devel] [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 ` [dm-devel] [PATCH 16/30] aoe: use blk_mq_alloc_disk and blk_cleanup_disk Christoph Hellwig
2021-06-02  6:53 ` [dm-devel] [PATCH 17/30] floppy: " Christoph Hellwig
2021-06-02  6:53 ` [dm-devel] [PATCH 18/30] loop: " Christoph Hellwig
2021-06-03  0:05   ` Chaitanya Kulkarni
2021-06-02  6:53 ` [dm-devel] [PATCH 19/30] nbd: " Christoph Hellwig
2021-06-02  6:53 ` [dm-devel] [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 ` [dm-devel] [PATCH 21/30] pd: use blk_mq_alloc_disk and blk_cleanup_disk Christoph Hellwig
2021-06-02  6:53 ` [dm-devel] [PATCH 22/30] rbd: " Christoph Hellwig
2021-06-02  6:53 ` [dm-devel] [PATCH 23/30] rnbd: " Christoph Hellwig
2021-06-02  7:49   ` Jinpu Wang
2021-06-02  6:53 ` [dm-devel] [PATCH 24/30] sx8: " Christoph Hellwig
2021-06-02  6:53 ` [dm-devel] [PATCH 25/30] xen-blkfront: " Christoph Hellwig
2021-06-02  6:53 ` [dm-devel] [PATCH 26/30] ubi: " Christoph Hellwig
2021-06-02  6:53 ` [dm-devel] [PATCH 27/30] scm_blk: " Christoph Hellwig
2021-06-02 12:02   ` Niklas Schnelle
2021-06-02  6:53 ` [dm-devel] [PATCH 28/30] amiflop: " Christoph Hellwig
2021-06-02  6:53 ` Christoph Hellwig [this message]
2021-06-02  6:53 ` [dm-devel] [PATCH 30/30] z2ram: " Christoph Hellwig
2021-06-04 15:58 ` [dm-devel] 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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