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Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Subject: Re: [PATCH v8 02/11] block: allow blk-zoned devices to have non-power-of-2 zone size Content-Language: en-US To: Bart Van Assche , , , , , CC: , , , , , , , , , Luis Chamberlain From: Pankaj Raghav In-Reply-To: <514f85ce-84fc-1186-7169-a29d7118e8cc@acm.org> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Originating-IP: [106.210.248.8] X-ClientProxiedBy: CAMSVWEXC01.scsc.local (2002:6a01:e347::6a01:e347) To CAMSVWEXC01.scsc.local (2002:6a01:e347::6a01:e347) X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrIKsWRmVeSWpSXmKPExsWy7djP87r7Fj9OMlj7Sdxi9d1+NotpH34y W/w+e57ZYu+72awWexZNYrJYufook8WT9bOYLf523WOy2HtL2+LyrjlsFvOXPWW3mND2ldni xoSnjBZrbj5lsThxS9qB3+PyFW+PnbPusntcPlvqsWlVJ5vH5iX1HrtvNrB57Gy9z+rxft9V oNDpao/Pm+Q82g90MwVwR3HZpKTmZJalFunbJXBl3Jq/k61gAVvFw3trWRsY21m7GDk5JARM JG7POwBkc3EICaxglPi+/DuU84VR4mjXTCjnM6PEm3f9jDAt2z9sZoNILGeUOLz2GRNc1eOZ S9hBqoQEdjJKPPxoBmLzCthJXGq9zwJiswioSsz/tJsZIi4ocXLmE7C4qECkxJrdZ8F6hQXi JX4cX8QGYjMLiEvcejIfbIGIwFJGiX+3L4KtZhaYwSRx/PIqIIeDg01AS6KxE6yZU8Ba4sPW HnaIZk2J1u2/oWx5ie1v5zBDvKAo0f99AxuEXSux9tgZdpCZEgL3OCWmztnFDpFwkejceRvq Z2GJV8e3QMVlJP7vBLkIxK6WeHrjNzNEcwujRP/O9WAHSQBd0XcmB6LGUWLB6+eMEGE+iRtv BSHu4ZOYtG068wRG1VlIYTELyc+zkLwwC8kLCxhZVjGKp5YW56anFhvnpZbrFSfmFpfmpesl 5+duYgSmwtP/jn/dwbji1Ue9Q4xMHIyHGCU4mJVEeAUCHicJ8aYkVlalFuXHF5XmpBYfYpTm YFES503O3JAoJJCeWJKanZpakFoEk2Xi4JRqYHKLv6Y5b35ef7vnhYPf/XtDKtZKp91VWiG8 YuYMs50n/zipScx5d8XjgrHyDb44mZevvhVn3F6dUy/mpXmrWT3iTjKjm13ykpbaa3dbXpoc YX68///WPOeEz+ZrS6Ri3/xwF+OQt5291zKqTuhE14Rvl/6YlX5V79ywhYnnuTsb77GgoEM3 C7Xe1li5Zhgn+CQerzqdXFS617/yceoGEfvuKzvN3y3UNl0T1Vxw81DEwX8Flswr5qfd9fp7 te7HrRT7t/svZ8pWXLHY0rLAXzPb4nb8kgYmp3OVcxjXfrv0UNZtz+kOo7aXk27wRm2PdOBL f1gcK5pcPydjZdq+pbtv+Pwz72wsyjxhIa3mrMRSnJFoqMVcVJwIANbigGD0AwAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprOKsWRmVeSWpSXmKPExsVy+t/xu7p7Fz9OMvhxx9pi9d1+NotpH34y W/w+e57ZYu+72awWexZNYrJYufook8WT9bOYLf523WOy2HtL2+LyrjlsFvOXPWW3mND2ldni xoSnjBZrbj5lsThxS9qB3+PyFW+PnbPusntcPlvqsWlVJ5vH5iX1HrtvNrB57Gy9z+rxft9V oNDpao/Pm+Q82g90MwVwR+nZFOWXlqQqZOQXl9gqRRtaGOkZWlroGZlY6hkam8daGZkq6dvZ pKTmZJalFunbJehl3Jq/k61gAVvFw3trWRsY21m7GDk5JARMJLZ/2MzWxcjFISSwlFHi1so7 jBAJGYlPVz6yQ9jCEn+udUEVfWSUWLWulRnC2cko8fDJLSaQKl4BO4lLrfdZQGwWAVWJ+Z92 M0PEBSVOznwCFhcViJR4uKwJrF5YIF7ix/FFbCA2s4C4xK0n85lAhoqAnDFn5hNGEIdZYAaT xPHLq6B2X2OSePpkDdDlHBxsAloSjZ1g93EKWEt82NrDDjFJU6J1+28oW15i+9s5zBA/KEr0 f9/ABmHXSry6v5txAqPoLCQHzkJyyCwko2YhGbWAkWUVo0hqaXFuem6xkV5xYm5xaV66XnJ+ 7iZGYArZduznlh2MK1991DvEyMTBeIhRgoNZSYRXIOBxkhBvSmJlVWpRfnxRaU5q8SFGU2Ao TWSWEk3OByaxvJJ4QzMDU0MTM0sDU0szYyVxXs+CjkQhgfTEktTs1NSC1CKYPiYOTqkGJqb/ Zt1HuU4vLZG9u8NX7GFqi4HoEw3DJblmc5JSz+YtZS9v1dg46Xba7u/3uHa0zS10EUg4f/9k RLAA+62wO2xVczqaJblPJ9+o3bW3Z6c2n7SQ5abefPcnhmstpht+eMe7vn/fxD/THov4R9Wn LCzrOuf6YqlM0F5/PoV4xrmsdwKmbV6+yPvJ7D2LVJw5+l6zrzjtLi2tenwDq0SatfZeVw3x n5Grjs7TeNTyT/e9TUvf/xeBxw7sqJCLv+E+W4z5YX51lOGCHxI5u04HbXc5uDW/Un9J/OSb E/m7fJ4/eppR0ZXt+/PqAuZJb400yuXazopMys7pV7PdF7fTkidF7lq+/7m5leGvVGZGKLEU ZyQaajEXFScCALp70FGqAwAA X-CMS-MailID: 20220729090918eucas1p1782d5db2070d20502d6534c7a7e37a22 X-Msg-Generator: CA X-RootMTR: 20220727162248eucas1p2ff8c3c2b021bedcae3960024b4e269e9 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20220727162248eucas1p2ff8c3c2b021bedcae3960024b4e269e9 References: <20220727162245.209794-1-p.raghav@samsung.com> <20220727162245.209794-3-p.raghav@samsung.com> <7984b969-9025-6b31-2645-da08daeefafb@acm.org> <514f85ce-84fc-1186-7169-a29d7118e8cc@acm.org> Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On 2022-07-28 15:29, Bart Van Assche wrote: >> But I am fine with going back to bdev_is_zone_start if you and Damien >> feel strongly otherwise. > The "zone start LBA" terminology occurs in ZBC-1, ZBC-2 and ZNS but > "zone aligned" not. I prefer "zone start" because it is clear, > unambiguous and because it has the same meaning as in the corresponding > standards documents. I propose to proceed as follows for checking > whether a number of LBAs is a multiple of the zone length: > * Either use bdev_is_zone_start() directly. > * Or introduce a synonym for bdev_is_zone_start() with an appropriate > name, e.g. bdev_is_zone_len_multiple(). > Thanks for the clarification Bart. I will go with bdev_is_zone_start() as it is also a commonly used terminology. > Thanks, > > Bart. 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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 2.84 on 10.11.54.1 Subject: Re: [dm-devel] [PATCH v8 02/11] block: allow blk-zoned devices to have non-power-of-2 zone size X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: pankydev8@gmail.com, gost.dev@samsung.com, linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, dm-devel@redhat.com, jaegeuk@kernel.org, matias.bjorling@wdc.com, Luis Chamberlain Errors-To: dm-devel-bounces@redhat.com Sender: "dm-devel" X-Scanned-By: MIMEDefang 2.84 on 10.11.54.2 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 2022-07-28 15:29, Bart Van Assche wrote: >> But I am fine with going back to bdev_is_zone_start if you and Damien >> feel strongly otherwise. > The "zone start LBA" terminology occurs in ZBC-1, ZBC-2 and ZNS but > "zone aligned" not. I prefer "zone start" because it is clear, > unambiguous and because it has the same meaning as in the corresponding > standards documents. I propose to proceed as follows for checking > whether a number of LBAs is a multiple of the zone length: > * Either use bdev_is_zone_start() directly. > * Or introduce a synonym for bdev_is_zone_start() with an appropriate > name, e.g. bdev_is_zone_len_multiple(). > Thanks for the clarification Bart. I will go with bdev_is_zone_start() as it is also a commonly used terminology. > Thanks, > > Bart. -- dm-devel mailing list dm-devel@redhat.com https://listman.redhat.com/mailman/listinfo/dm-devel