From: Ulf Hansson <ulf.hansson@linaro.org>
To: Christoph Hellwig <hch@lst.de>
Cc: "Jens Axboe" <axboe@kernel.dk>,
"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 <linux-block@vger.kernel.org>,
nbd@other.debian.org,
linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
ceph-devel@vger.kernel.org,
virtualization@lists.linux-foundation.org,
xen-devel@lists.xenproject.org,
linux-mmc <linux-mmc@vger.kernel.org>,
linux-mtd@lists.infradead.org, linux-s390@vger.kernel.org
Subject: Re: [PATCH 08/30] mspro: use blk_mq_alloc_disk
Date: Thu, 3 Jun 2021 17:36:45 +0200 [thread overview]
Message-ID: <CAPDyKFoh6HKx2rHHRXvw--Ou53TR2wLFGrKCDuetigxQ8QbvfQ@mail.gmail.com> (raw)
In-Reply-To: <20210602065345.355274-9-hch@lst.de>
On Wed, 2 Jun 2021 at 08:54, Christoph Hellwig <hch@lst.de> wrote:
>
> Use the blk_mq_alloc_disk API to simplify the gendisk and request_queue
> allocation.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Kind regards
Uffe
> ---
> drivers/memstick/core/mspro_block.c | 26 +++++++++++---------------
> 1 file changed, 11 insertions(+), 15 deletions(-)
>
> diff --git a/drivers/memstick/core/mspro_block.c b/drivers/memstick/core/mspro_block.c
> index cf7fe0d58ee7..22778d0e24f5 100644
> --- a/drivers/memstick/core/mspro_block.c
> +++ b/drivers/memstick/core/mspro_block.c
> @@ -1205,21 +1205,17 @@ static int mspro_block_init_disk(struct memstick_dev *card)
> if (disk_id < 0)
> return disk_id;
>
> - msb->disk = alloc_disk(1 << MSPRO_BLOCK_PART_SHIFT);
> - if (!msb->disk) {
> - rc = -ENOMEM;
> + rc = blk_mq_alloc_sq_tag_set(&msb->tag_set, &mspro_mq_ops, 2,
> + BLK_MQ_F_SHOULD_MERGE);
> + if (rc)
> goto out_release_id;
> - }
>
> - msb->queue = blk_mq_init_sq_queue(&msb->tag_set, &mspro_mq_ops, 2,
> - BLK_MQ_F_SHOULD_MERGE);
> - if (IS_ERR(msb->queue)) {
> - rc = PTR_ERR(msb->queue);
> - msb->queue = NULL;
> - goto out_put_disk;
> + msb->disk = blk_mq_alloc_disk(&msb->tag_set, card);
> + if (IS_ERR(msb->disk)) {
> + rc = PTR_ERR(msb->disk);
> + goto out_free_tag_set;
> }
> -
> - msb->queue->queuedata = card;
> + msb->queue = msb->disk->queue;
>
> blk_queue_max_hw_sectors(msb->queue, MSPRO_BLOCK_MAX_PAGES);
> blk_queue_max_segments(msb->queue, MSPRO_BLOCK_MAX_SEGS);
> @@ -1228,10 +1224,10 @@ static int mspro_block_init_disk(struct memstick_dev *card)
>
> msb->disk->major = major;
> msb->disk->first_minor = disk_id << MSPRO_BLOCK_PART_SHIFT;
> + msb->disk->minors = 1 << MSPRO_BLOCK_PART_SHIFT;
> msb->disk->fops = &ms_block_bdops;
> msb->usage_count = 1;
> msb->disk->private_data = msb;
> - msb->disk->queue = msb->queue;
>
> sprintf(msb->disk->disk_name, "mspblk%d", disk_id);
>
> @@ -1247,8 +1243,8 @@ static int mspro_block_init_disk(struct memstick_dev *card)
> msb->active = 1;
> return 0;
>
> -out_put_disk:
> - put_disk(msb->disk);
> +out_free_tag_set:
> + blk_mq_free_tag_set(&msb->tag_set);
> out_release_id:
> mutex_lock(&mspro_block_disk_lock);
> idr_remove(&mspro_block_disk_idr, disk_id);
> --
> 2.30.2
>
next prev parent reply other threads:[~2021-06-03 15:37 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 [this message]
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 ` [PATCH 13/30] sunvdc: " Christoph Hellwig
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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