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 16/30] aoe: use blk_mq_alloc_disk and blk_cleanup_disk
Date: Wed, 2 Jun 2021 09:53:31 +0300 [thread overview]
Message-ID: <20210602065345.355274-17-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/aoe/aoeblk.c | 33 ++++++++++++---------------------
drivers/block/aoe/aoedev.c | 3 +--
2 files changed, 13 insertions(+), 23 deletions(-)
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index c34e71b0c4a9..06b360f7123a 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -338,14 +338,13 @@ static const struct blk_mq_ops aoeblk_mq_ops = {
.queue_rq = aoeblk_queue_rq,
};
-/* alloc_disk and add_disk can sleep */
+/* blk_mq_alloc_disk and add_disk can sleep */
void
aoeblk_gdalloc(void *vp)
{
struct aoedev *d = vp;
struct gendisk *gd;
mempool_t *mp;
- struct request_queue *q;
struct blk_mq_tag_set *set;
ulong flags;
int late = 0;
@@ -362,19 +361,12 @@ aoeblk_gdalloc(void *vp)
if (late)
return;
- gd = alloc_disk(AOE_PARTITIONS);
- if (gd == NULL) {
- pr_err("aoe: cannot allocate disk structure for %ld.%d\n",
- d->aoemajor, d->aoeminor);
- goto err;
- }
-
mp = mempool_create(MIN_BUFS, mempool_alloc_slab, mempool_free_slab,
buf_pool_cache);
if (mp == NULL) {
printk(KERN_ERR "aoe: cannot allocate bufpool for %ld.%d\n",
d->aoemajor, d->aoeminor);
- goto err_disk;
+ goto err;
}
set = &d->tag_set;
@@ -391,12 +383,11 @@ aoeblk_gdalloc(void *vp)
goto err_mempool;
}
- q = blk_mq_init_queue(set);
- if (IS_ERR(q)) {
+ gd = blk_mq_alloc_disk(set, d);
+ if (IS_ERR(gd)) {
pr_err("aoe: cannot allocate block queue for %ld.%d\n",
d->aoemajor, d->aoeminor);
- blk_mq_free_tag_set(set);
- goto err_mempool;
+ goto err_tagset;
}
spin_lock_irqsave(&d->lock, flags);
@@ -405,16 +396,16 @@ aoeblk_gdalloc(void *vp)
WARN_ON(d->flags & DEVFL_TKILL);
WARN_ON(d->gd);
WARN_ON(d->flags & DEVFL_UP);
- blk_queue_max_hw_sectors(q, BLK_DEF_MAX_SECTORS);
- blk_queue_io_opt(q, SZ_2M);
+ blk_queue_max_hw_sectors(gd->queue, BLK_DEF_MAX_SECTORS);
+ blk_queue_io_opt(gd->queue, SZ_2M);
d->bufpool = mp;
- d->blkq = gd->queue = q;
- q->queuedata = d;
+ d->blkq = gd->queue;
d->gd = gd;
if (aoe_maxsectors)
- blk_queue_max_hw_sectors(q, aoe_maxsectors);
+ blk_queue_max_hw_sectors(gd->queue, aoe_maxsectors);
gd->major = AOE_MAJOR;
gd->first_minor = d->sysminor;
+ gd->minors = AOE_PARTITIONS;
gd->fops = &aoe_bdops;
gd->private_data = d;
set_capacity(gd, d->ssize);
@@ -435,10 +426,10 @@ aoeblk_gdalloc(void *vp)
spin_unlock_irqrestore(&d->lock, flags);
return;
+err_tagset:
+ blk_mq_free_tag_set(set);
err_mempool:
mempool_destroy(mp);
-err_disk:
- put_disk(gd);
err:
spin_lock_irqsave(&d->lock, flags);
d->flags &= ~DEVFL_GD_NOW;
diff --git a/drivers/block/aoe/aoedev.c b/drivers/block/aoe/aoedev.c
index e2ea2356da06..c5753c6bfe80 100644
--- a/drivers/block/aoe/aoedev.c
+++ b/drivers/block/aoe/aoedev.c
@@ -277,9 +277,8 @@ freedev(struct aoedev *d)
if (d->gd) {
aoedisk_rm_debugfs(d);
del_gendisk(d->gd);
- put_disk(d->gd);
+ blk_cleanup_disk(d->gd);
blk_mq_free_tag_set(&d->tag_set);
- blk_cleanup_queue(d->blkq);
}
t = d->targets;
e = t + d->ntargets;
--
2.30.2
next prev parent reply other threads:[~2021-06-02 7:03 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 ` [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 ` Christoph Hellwig [this message]
2021-06-02 6:53 ` [PATCH 17/30] floppy: use blk_mq_alloc_disk and blk_cleanup_disk 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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