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dmarc=none action=none header.from=oracle.com; Date: Fri, 4 Jun 2021 11:58:34 -0400 From: Konrad Rzeszutek Wilk To: Christoph Hellwig , Boris Ostrovsky , jgross@suse.com Cc: Jens Axboe , Justin Sanders , Denis Efremov , Josef Bacik , Tim Waugh , Geoff Levand , Ilya Dryomov , "Md. Haris Iqbal" , Jack Wang , "Michael S. Tsirkin" , Jason Wang , Roger Pau =?iso-8859-1?Q?Monn=E9?= , Mike Snitzer , Maxim Levitsky , Alex Dubov , Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , 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: Re: simplify gendisk and request_queue allocation for blk-mq based drivers Message-ID: References: <20210602065345.355274-1-hch@lst.de> Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210602065345.355274-1-hch@lst.de> X-Originating-IP: [130.44.160.152] X-ClientProxiedBy: MN2PR01CA0037.prod.exchangelabs.com (2603:10b6:208:23f::6) To BYAPR10MB2999.namprd10.prod.outlook.com (2603:10b6:a03:85::27) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 6dde9b11-53fa-45a5-e4e3-08d927719ed5 X-MS-TrafficTypeDiagnostic: SJ0PR10MB4573: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:7691; 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X-MS-Exchange-AntiSpam-MessageData: =?us-ascii?Q?gdpQmfl8El8DPe05/ff+wLw1/KXLxBUk84KmbBsgJrrdeHieFn5LEuqnWl++?= =?us-ascii?Q?+UjNgTjJDG0Oy6mts17gW1+WMWYc5sUjhoAGzfgwfT7Pzy2441s4sE3MvxSX?= =?us-ascii?Q?SRhf4Ec4wl4gNcjirY4ZZx9nyHsKiuVqsZIiIgvOZV6JtJ/wEtmJxOuFg8nP?= =?us-ascii?Q?uKjCrwrGeC3048DWWWWuHEDcmJ6ZiYL6rsQKzrsK0nqgY5Rxqs6sQE3dQNq4?= =?us-ascii?Q?CfCfYZsdey83ES59nAWpWzHfBPV3sAkiuolib1v8KFoFh4m19r203lwOpa59?= =?us-ascii?Q?SySyMhX/1zZ61W8f+1VN6FTD6szZX2+vTot42u9xJ9dDh0U3eNAxd2iYZn0f?= =?us-ascii?Q?FnywpHXicqp7wJ4XxEvvbHwQjO+qRq86gUvS750ntuWPrrC2vv5+b6RZzuES?= =?us-ascii?Q?UcXB6tmXaG0UH6hWSpBKxi4Qu+znSclq9GPbpnNHb6uGZthjISahfQtta6L8?= =?us-ascii?Q?QENMEq/n3Y8O4nxltdvopsJg4mtGH7XLAIw1TfFd6NGnkMGv+e8uEULBYnah?= =?us-ascii?Q?sKsuSSKxj9HW9YLP46ZjPemhaoeHbI0bMhjtc8tA5iddmW0Qp0D1sou4oBx1?= =?us-ascii?Q?+NWx0/dEti/pL1xCxKtWgaprT2A+vvp2lNH/Zp9EdpD7pqwSsffeQGQGYkmO?= =?us-ascii?Q?JCogfOFRqp8ieYxSSlI7BY6O5f4vs0fr+pOs/di4TE/EuWhelL8x8D4VFENg?= =?us-ascii?Q?C10k7BLZfSLJXmQkDkwCUju3JpwBTu20ZSobHfpvuiGl7BhkQAfiy8EJMLmD?= =?us-ascii?Q?YBoD5fLwHNzfpBW0nr5lCjOi5onruP7ZRKk/3ddsKzuFkx2PjQDOaEprB8od?= =?us-ascii?Q?uLw/m7j6Z7YgqwkScdMQliPMFlaMnWQlKN5/c0leXZ3TayPv8hxil1UBekgP?= =?us-ascii?Q?Kpp5KY5GxCcyAZW2yfB8Y4ikwdiKii5dj+yOqOBxN/6JyV2pvazcS9Xsq9Dj?= =?us-ascii?Q?Y1DsNtmdsClAPVchPB15A2Yp5/fLM2u7cgMhr8thEdLIV5cUr5UwtEJfUi1L?= =?us-ascii?Q?a7P8IQ2zF8beqpIVhRJuUz+bgGvmluPArexdyi8MmDeVuKICYzY1ZylKnltR?= =?us-ascii?Q?KS+uaVVX48VeH3aI1YK8YVpLFxAFhM5jGoahx7249NVuqHQitDHE/F3P2Kw9?= =?us-ascii?Q?P9TIMyUxY0U6UDewE1YgwVRFm6ucT69PcDuUPD/MDYRo6lQAkknDIWsZIohy?= =?us-ascii?Q?aHLmwizL1c8bkLjOlhcRtz0fGX76iiZhkvd7mxf0PIgWOyisyqwjfn8xHlDy?= =?us-ascii?Q?lya6vxtBHvC7VyelPVIM4UREFQMtr43M9AGA4WFzaF5J8kQ/Jx+YMPS6tsQ2?= =?us-ascii?Q?K//cbST/UVancc9qupZ1eFle?= X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-Network-Message-Id: 6dde9b11-53fa-45a5-e4e3-08d927719ed5 X-MS-Exchange-CrossTenant-AuthSource: BYAPR10MB2999.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Jun 2021 15:58:40.2289 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: k8PHQ2bjx/5Yak8THiDXWmeuwC57H+V+YorWNg11QCDMPAuKEJyQpKJy+Bs2B5GcI9L15xw+he/zXw8ra7OaWg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR10MB4573 X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=10005 signatures=668682 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 bulkscore=0 phishscore=0 spamscore=0 malwarescore=0 mlxscore=0 mlxlogscore=999 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2104190000 definitions=main-2106040115 X-Proofpoint-ORIG-GUID: rc9IytYinERt57ZWbGC4hfNK-9DkWPUs X-Proofpoint-GUID: rc9IytYinERt57ZWbGC4hfNK-9DkWPUs On Wed, Jun 02, 2021 at 09:53:15AM +0300, Christoph Hellwig wrote: > Hi all, Hi! You wouldn't have a nice git repo to pull so one can test it easily? Thank you! Cc-ing Boris/Juergen - pls see below xen. > > this series is the scond part of cleaning up lifetimes and allocation of > the gendisk and request_queue structure. It adds a new interface to > allocate the disk and queue together for blk based drivers, and uses that > in all drivers that do not have any caveats in their gendisk and > request_queue lifetime rules. > > Diffstat: > block/blk-mq.c | 91 +++++++++++++++------------------- > block/blk.h | 1 > block/elevator.c | 2 > drivers/block/amiflop.c | 16 +----- > drivers/block/aoe/aoeblk.c | 33 ++++-------- > drivers/block/aoe/aoedev.c | 3 - > drivers/block/ataflop.c | 16 +----- > drivers/block/floppy.c | 20 +------ > drivers/block/loop.c | 19 ++----- > drivers/block/nbd.c | 53 +++++++------------ > drivers/block/null_blk/main.c | 11 +--- > drivers/block/paride/pcd.c | 19 +++---- > drivers/block/paride/pd.c | 30 ++++------- > drivers/block/paride/pf.c | 18 ++---- > drivers/block/ps3disk.c | 36 +++++-------- > drivers/block/rbd.c | 52 ++++++------------- > drivers/block/rnbd/rnbd-clt.c | 35 +++---------- > drivers/block/sunvdc.c | 47 ++++------------- > drivers/block/swim.c | 34 +++++------- > drivers/block/swim3.c | 33 +++++------- > drivers/block/sx8.c | 23 ++------ > drivers/block/virtio_blk.c | 26 ++------- > drivers/block/xen-blkfront.c | 96 ++++++++++++++---------------------- > drivers/block/z2ram.c | 15 +---- > drivers/cdrom/gdrom.c | 45 +++++++--------- > drivers/md/dm-rq.c | 9 +-- > drivers/memstick/core/ms_block.c | 25 +++------ > drivers/memstick/core/mspro_block.c | 26 ++++----- > drivers/mtd/mtd_blkdevs.c | 48 ++++++++---------- > drivers/mtd/ubi/block.c | 68 ++++++++++--------------- > drivers/s390/block/scm_blk.c | 21 ++----- > include/linux/blk-mq.h | 24 ++++++--- > include/linux/elevator.h | 1 > 33 files changed, 386 insertions(+), 610 deletions(-)