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Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-MIME-Autoconverted: from quoted-printable to 8bit by lists01.pubmisc.prod.ext.phx2.redhat.com id 1530ATUB011697 X-loop: dm-devel@redhat.com Cc: Justin Sanders , Vignesh Raghavendra , Mike Snitzer , "Michael S. Tsirkin" , Jason Wang , "virtualization@lists.linux-foundation.org" , "dm-devel@redhat.com" , Denis, Miquel Raynal , Jack Wang , Tim Waugh , "linux-s390@vger.kernel.org" , Maxim Levitsky , Richard, Weinberger , Borntraeger , "xen-devel@lists.xenproject.org" , Ilya Dryomov , Vasily Gorbik , Christian, Alex Dubov , Konrad Rzeszutek Wilk , Carstens , Josef Bacik , Efremov , "nbd@other.debian.org" , "linux-block@vger.kernel.org" , "linux-mtd@lists.infradead.org" , Heiko, "ceph-devel@vger.kernel.org" , Jens Axboe , Geoff Levand , "linux-mmc@vger.kernel.org" , "Md. Haris Iqbal" , "linuxppc-dev@lists.ozlabs.org" , =?iso-8859-1?Q?Roger_Pau_Monn=E9?= Subject: Re: [dm-devel] [PATCH 20/30] nullb: use blk_mq_alloc_disk X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dm-devel-bounces@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit On 6/1/21 23:56, Christoph Hellwig wrote: > Use blk_mq_alloc_disk and blk_cleanup_disk to simplify the gendisk and > request_queue allocation. > > Signed-off-by: Christoph Hellwig > --- > drivers/block/null_blk/main.c | 11 +++++------ > 1 file changed, 5 insertions(+), 6 deletions(-) > > diff --git a/drivers/block/null_blk/main.c b/drivers/block/null_blk/main.c > index d8e098f1e5b5..74fb2ec63219 100644 > --- a/drivers/block/null_blk/main.c > +++ b/drivers/block/null_blk/main.c > @@ -1851,13 +1851,12 @@ static int null_add_dev(struct nullb_device *dev) > > rv = -ENOMEM; Is above initialization needed ? > nullb->tag_set->timeout = 5 * HZ; > - nullb->q = blk_mq_init_queue_data(nullb->tag_set, nullb); > - if (IS_ERR(nullb->q)) > - goto out_cleanup_tags; > - nullb->disk = alloc_disk_node(1, nullb->dev->home_node); > - if (!nullb->disk) > + nullb->disk = blk_mq_alloc_disk(nullb->tag_set, nullb); > + if (IS_ERR(nullb->disk)) { > + rv = PTR_ERR(nullb->disk); > goto out_cleanup_disk; > - nullb->disk->queue = nullb->q; > + } > + nullb->q = nullb->disk->queue; > } else if (dev->queue_mode == NULL_Q_BIO) { > rv = -ENOMEM; > nullb->disk = blk_alloc_disk(nullb->dev->home_node); -- dm-devel mailing list dm-devel@redhat.com https://listman.redhat.com/mailman/listinfo/dm-devel