From: Pankaj Raghav <p.raghav@samsung.com> To: Bart Van Assche <bvanassche@acm.org>, <damien.lemoal@opensource.wdc.com>, <hch@lst.de>, <axboe@kernel.dk>, <snitzer@kernel.org>, <Johannes.Thumshirn@wdc.com> Cc: <matias.bjorling@wdc.com>, <gost.dev@samsung.com>, <linux-kernel@vger.kernel.org>, <hare@suse.de>, <linux-block@vger.kernel.org>, <pankydev8@gmail.com>, <jaegeuk@kernel.org>, <dm-devel@redhat.com>, <linux-nvme@lists.infradead.org>, Luis Chamberlain <mcgrof@kernel.org> Subject: Re: [PATCH v8 02/11] block: allow blk-zoned devices to have non-power-of-2 zone size Date: Fri, 29 Jul 2022 11:09:14 +0200 [thread overview] Message-ID: <f577e147-c692-97b1-3262-2684649b5eae@samsung.com> (raw) In-Reply-To: <514f85ce-84fc-1186-7169-a29d7118e8cc@acm.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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From: Pankaj Raghav <p.raghav@samsung.com> To: Bart Van Assche <bvanassche@acm.org>, <damien.lemoal@opensource.wdc.com>, <hch@lst.de>, <axboe@kernel.dk>, <snitzer@kernel.org>, <Johannes.Thumshirn@wdc.com> 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 <mcgrof@kernel.org> Subject: Re: [dm-devel] [PATCH v8 02/11] block: allow blk-zoned devices to have non-power-of-2 zone size Date: Fri, 29 Jul 2022 11:09:14 +0200 [thread overview] Message-ID: <f577e147-c692-97b1-3262-2684649b5eae@samsung.com> (raw) In-Reply-To: <514f85ce-84fc-1186-7169-a29d7118e8cc@acm.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. -- dm-devel mailing list dm-devel@redhat.com https://listman.redhat.com/mailman/listinfo/dm-devel
next prev parent reply other threads:[~2022-07-29 9:09 UTC|newest] Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <CGME20220727162246eucas1p1a758799f13d36ba99d30bf92cc5e2754@eucas1p1.samsung.com> 2022-07-27 16:22 ` [PATCH v8 00/11] support non power of 2 zoned device Pankaj Raghav 2022-07-27 16:22 ` [dm-devel] " Pankaj Raghav [not found] ` <CGME20220727162247eucas1p203fc14aa17ecbcb3e6215d5304bb0c85@eucas1p2.samsung.com> 2022-07-27 16:22 ` [PATCH v8 01/11] block: make bdev_nr_zones and disk_zone_no generic for npo2 zsze Pankaj Raghav 2022-07-27 16:22 ` [dm-devel] " Pankaj Raghav 2022-07-28 2:54 ` Damien Le Moal 2022-07-28 2:54 ` [dm-devel] " Damien Le Moal [not found] ` <CGME20220727162248eucas1p2ff8c3c2b021bedcae3960024b4e269e9@eucas1p2.samsung.com> 2022-07-27 16:22 ` [PATCH v8 02/11] block: allow blk-zoned devices to have non-power-of-2 zone size Pankaj Raghav 2022-07-27 16:22 ` [dm-devel] " Pankaj Raghav 2022-07-27 23:16 ` Bart Van Assche 2022-07-27 23:16 ` [dm-devel] " Bart Van Assche 2022-07-28 12:11 ` Pankaj Raghav 2022-07-28 12:11 ` [dm-devel] " Pankaj Raghav 2022-07-28 13:29 ` Bart Van Assche 2022-07-28 13:29 ` [dm-devel] " Bart Van Assche 2022-07-29 9:09 ` Pankaj Raghav [this message] 2022-07-29 9:09 ` Pankaj Raghav 2022-07-28 3:07 ` Damien Le Moal 2022-07-28 3:07 ` [dm-devel] " Damien Le Moal 2022-07-28 12:24 ` Pankaj Raghav 2022-07-28 12:24 ` [dm-devel] " Pankaj Raghav [not found] ` <CGME20220727162249eucas1p28fa44c840e590f6f1b53e0cc12ee3771@eucas1p2.samsung.com> 2022-07-27 16:22 ` [PATCH v8 03/11] nvme: zns: Allow ZNS drives that have non-power_of_2 " Pankaj Raghav 2022-07-27 16:22 ` [dm-devel] " Pankaj Raghav [not found] ` <CGME20220727162250eucas1p133e8a814fee934f7161866122ef93273@eucas1p1.samsung.com> 2022-07-27 16:22 ` [PATCH v8 04/11] nvmet: Allow ZNS target to support non-power_of_2 zone sizes Pankaj Raghav 2022-07-27 16:22 ` [dm-devel] " Pankaj Raghav 2022-07-28 3:09 ` Damien Le Moal 2022-07-28 3:09 ` [dm-devel] " Damien Le Moal 2022-07-29 7:45 ` Pankaj Raghav 2022-07-29 7:45 ` Pankaj Raghav [not found] ` <CGME20220727162251eucas1p12939ac3864fd8705ae139eb2d1087d8f@eucas1p1.samsung.com> 2022-07-27 16:22 ` [PATCH v8 05/11] null_blk: allow non power of 2 zoned devices Pankaj Raghav 2022-07-27 16:22 ` [dm-devel] " Pankaj Raghav 2022-07-27 21:59 ` Chaitanya Kulkarni 2022-07-27 21:59 ` [dm-devel] " Chaitanya Kulkarni 2022-07-29 7:51 ` Pankaj Raghav 2022-07-29 7:51 ` [dm-devel] " Pankaj Raghav 2022-07-28 3:14 ` Damien Le Moal 2022-07-28 3:14 ` [dm-devel] " Damien Le Moal [not found] ` <CGME20220727162252eucas1p25be8b79231334fa0c759c2475859e93b@eucas1p2.samsung.com> 2022-07-27 16:22 ` [PATCH v8 06/11] zonefs: " Pankaj Raghav 2022-07-27 16:22 ` [dm-devel] " Pankaj Raghav 2022-07-28 3:16 ` Damien Le Moal 2022-07-28 3:16 ` [dm-devel] " Damien Le Moal [not found] ` <CGME20220727162253eucas1p1a5912e0494f6918504cc8ff15ad5d31f@eucas1p1.samsung.com> 2022-07-27 16:22 ` [PATCH v8 07/11] dm-zoned: ensure only power of 2 zone sizes are allowed Pankaj Raghav 2022-07-27 16:22 ` [dm-devel] " Pankaj Raghav 2022-07-28 3:18 ` Damien Le Moal 2022-07-28 3:18 ` [dm-devel] " Damien Le Moal 2022-07-28 12:15 ` David Sterba 2022-07-28 12:15 ` [dm-devel] " David Sterba 2022-07-29 8:00 ` Pankaj Raghav 2022-07-29 8:00 ` [dm-devel] " Pankaj Raghav [not found] ` <CGME20220727162254eucas1p1fd990f746d9f9870b8d58ee0bd01fedd@eucas1p1.samsung.com> 2022-07-27 16:22 ` [PATCH v8 08/11] dm-zone: use generic helpers to calculate offset from zone start Pankaj Raghav 2022-07-27 16:22 ` [dm-devel] " Pankaj Raghav 2022-07-28 3:20 ` Damien Le Moal 2022-07-28 3:20 ` [dm-devel] " Damien Le Moal [not found] ` <CGME20220727162255eucas1p2945c6dca42b799bb3b4abf3edb83dde8@eucas1p2.samsung.com> 2022-07-27 16:22 ` [PATCH v8 09/11] dm-table: allow non po2 zoned devices Pankaj Raghav 2022-07-27 16:22 ` [dm-devel] " Pankaj Raghav 2022-07-28 3:22 ` Damien Le Moal 2022-07-28 3:22 ` [dm-devel] " Damien Le Moal [not found] ` <CGME20220727162256eucas1p284a15532173cce3eca46eee0cee3acdd@eucas1p2.samsung.com> 2022-07-27 16:22 ` [PATCH v8 10/11] dm: call dm_zone_endio after the target endio callback for " Pankaj Raghav 2022-07-27 16:22 ` [dm-devel] " Pankaj Raghav 2022-07-28 3:25 ` Damien Le Moal 2022-07-28 3:25 ` [dm-devel] " Damien Le Moal 2022-07-29 8:48 ` Pankaj Raghav 2022-07-29 8:48 ` [dm-devel] " Pankaj Raghav [not found] ` <CGME20220727162257eucas1p2848a75c4aa7e559abb5d9ae0fbd374c1@eucas1p2.samsung.com> 2022-07-27 16:22 ` [PATCH v8 11/11] dm: add power-of-2 zoned target for non-power-of-2 " Pankaj Raghav 2022-07-27 16:22 ` [dm-devel] " Pankaj Raghav 2022-07-28 4:33 ` Damien Le Moal 2022-07-28 4:33 ` [dm-devel] " Damien Le Moal 2022-08-01 8:35 ` Pankaj Raghav 2022-08-01 8:35 ` [dm-devel] " Pankaj Raghav 2022-07-27 23:19 ` [PATCH v8 00/11] support non power of 2 zoned device Bart Van Assche 2022-07-27 23:19 ` [dm-devel] " Bart Van Assche 2022-07-28 1:52 ` Damien Le Moal 2022-07-28 1:52 ` [dm-devel] " Damien Le Moal 2022-07-28 2:58 ` Bart Van Assche 2022-07-28 2:58 ` [dm-devel] " Bart Van Assche 2022-07-28 3:28 ` Damien Le Moal 2022-07-28 3:28 ` [dm-devel] " Damien Le Moal 2022-07-28 11:57 ` Pankaj Raghav 2022-07-28 11:57 ` [dm-devel] " Pankaj Raghav 2022-07-28 13:30 ` Bart Van Assche 2022-07-28 13:30 ` [dm-devel] " Bart Van Assche
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