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Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Subject: Re: [PATCH v8 00/11] support non power of 2 zoned device Content-Language: en-US To: Bart Van Assche , , , , , CC: , , , , , , , , From: Pankaj Raghav In-Reply-To: <51255650-ddc2-4f3d-52e5-14007b9ff538@acm.org> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-Originating-IP: [106.110.32.100] X-ClientProxiedBy: CAMSVWEXC01.scsc.local (2002:6a01:e347::6a01:e347) To CAMSVWEXC01.scsc.local (2002:6a01:e347::6a01:e347) X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrFKsWRmVeSWpSXmKPExsWy7djPc7onKh8lGfQf17ZYfbefzWLah5/M Fr/Pnme22PtuNqvFnkWTmCxWrj7KZPFk/Sxmi79d95gs9t7Stri8aw6bxfxlT9ktJrR9ZbZY c/Mpi8WJW9IOfB6Xr3h77Jx1l93j8tlSj02rOtk8Ni+p99h9s4HNY2frfVaP9/uuAoVOV3t8 3iTn0X6gmymAO4rLJiU1J7MstUjfLoEr4/m8FtaCY+wVk/fdYmtg7GLrYuTkkBAwkZi1exU7 iC0ksIJRYs21+C5GLiD7C6PE7WkfmCCcz4wS+2+cBergAOuYd6kMomE5o8SXD8FwNQtP3oFq 2M0osfvTElaQKl4BO4kFO+cwgtgsAqoS07+sYoKIC0qcnPmEBcQWFYiUWLP7LNgZwgKOEh+f fQOrZxYQl7j1ZD7YUBGBpYwS/25fZANxmAU+MEpcau9gBTmJTUBLorETrJlTwFpi+owtzBDN mhKt23+zQ9jyEs1bZzND/KwkMWHefaj/ayXWHjvDDjJTQuAWp0TPtmNQRS4ST/+/hCoSlnh1 fAs7hC0j8X/nfCYIu1ri6Y3fzBDNLYwS/TvXQ8PIWqLvTA5EjaPE9i3nWCDCfBI33gpC3MMn MWnbdOYJjKqzkMJiFpKfZyF5YRaSFxYwsqxiFE8tLc5NTy02ykst1ytOzC0uzUvXS87P3cQI TH6n/x3/soNx+auPeocYmTgYDzFKcDArifAmRN9PEuJNSaysSi3Kjy8qzUktPsQozcGiJM6b nLkhUUggPbEkNTs1tSC1CCbLxMEp1cDEJlu6N3etXV2+6POepSv6GMxr1cS9tUymybrrzu3X XJDRbHHIRuzVY8MLF1wbdH8Y1EdwnxIUexp0gK/yJ8fBRdt+tp7kmlNcFHSskzljrUbDuZwp 6wVn7swNOdGUsU2ymYPrmLyroGXFzv5yrZ82NV1TFPZ/rH7G/3PGse9l+nl7rk9YH2UYuvDf uwxWJh27eXar1uzO47uiOuHv71uzDjirqbqFrn1msGseg3DgdbeexV2vPtcIa58uDVcwvF7y QmorBx/7p5vf9yzlXW44/06ak7z7TB2tr9cWb8lff05+haGi6JFlywRXzGO6PlPWOOuzcfPl b9UfLfdqld/0reM0PZO1flEsV63i+rVKLMUZiYZazEXFiQD0Zw0g7QMAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFprAKsWRmVeSWpSXmKPExsVy+t/xe7onKh8lGczcxGux+m4/m8W0Dz+Z LX6fPc9ssffdbFaLPYsmMVmsXH2UyeLJ+lnMFn+77jFZ7L2lbXF51xw2i/nLnrJbTGj7ymyx 5uZTFosTt6Qd+DwuX/H22DnrLrvH5bOlHptWdbJ5bF5S77H7ZgObx87W+6we7/ddBQqdrvb4 vEnOo/1AN1MAd5SeTVF+aUmqQkZ+cYmtUrShhZGeoaWFnpGJpZ6hsXmslZGpkr6dTUpqTmZZ apG+XYJexvN5LawFx9grJu+7xdbA2MXWxcjBISFgIjHvUlkXIxeHkMBSRonem0tYuhg5geIy Ep+ufGSHsIUl/lwDqecEKvrIKHFwvz1Ew25GieUX3jKCJHgF7CQW7JwDZrMIqEpM/7KKCSIu KHFy5hOwoaICkRIPlzWBxYUFHCU+PvsGVs8sIC5x68l8JpChIiBXzJn5hBHEYRb4wChxqb2D FWLdfkaJM+u3M4PczSagJdHYCXYep4C1xPQZW5ghJmlKtG7/zQ5hy0s0b53NDPGCksSEeffZ IOxaiVf3dzNOYBSdheTAWUgOmYVk1CwkoxYwsqxiFEktLc5Nzy020itOzC0uzUvXS87P3cQI TBrbjv3csoNx5auPeocYmTgYDzFKcDArifAmRN9PEuJNSaysSi3Kjy8qzUktPsRoCgylicxS osn5wLSVVxJvaGZgamhiZmlgamlmrCTO61nQkSgkkJ5YkpqdmlqQWgTTx8TBKdXApPM/xdil 7GibE+++LP7Aw10fZ2QyLpj1sCf51faKgz+VE8omPNXQqZnLdZdtkqiAQUPa4uocgfdWG81z f3F6fnWNnCj+UnPlxkX99ZdOxCRzHnp6OHbJ7y7+9LaFlVfNJsm3np7M9/LfkdVZdvxFitov F4a7TFmsNXP5xi2zX6nGM/jyv0p+tFN5mX/AQ9+t3yrF5kftau/SZ/2got5VPb91q3fTgjc7 X0yIu6Txxoar7uYh8eXfS3peVVQulBA18vbn7pH7djTj9eOELd3HN1fu2e/Xdba6lk8v7V2k YepnqcS8s6ev/Jna4MGs3Bxj9TTZ7aFwyrXfSguV2D/cmfglWzzzkvPqk70bAlmuKLEUZyQa ajEXFScCAFkXhv6jAwAA X-CMS-MailID: 20220728115800eucas1p1ef291627fc0b897e1a8b9eec57c6f561 X-Msg-Generator: CA X-RootMTR: 20220727162246eucas1p1a758799f13d36ba99d30bf92cc5e2754 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20220727162246eucas1p1a758799f13d36ba99d30bf92cc5e2754 References: <20220727162245.209794-1-p.raghav@samsung.com> <51255650-ddc2-4f3d-52e5-14007b9ff538@acm.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Bart, On 2022-07-28 01:19, Bart Van Assche wrote: > On 7/27/22 09:22, Pankaj Raghav wrote: >> This series adds support to npo2 zoned devices in the block and nvme >> layer and a new **dm target** is added: dm-po2z-target. This new >> target will be initially used for filesystems such as btrfs and >> f2fs that does not have native npo2 zone support. > > Should any SCSI changes be included in this patch series? From sd_zbc.c: > >     if (!is_power_of_2(zone_blocks)) { >         sd_printk(KERN_ERR, sdkp, >               "Zone size %llu is not a power of two.\n", >               zone_blocks); >         return -EINVAL; >     } > I would keep these changes out of the current patch series because it will also increase the test scope. I think once the block layer constraint is removed as a part of this series, we can work on the SCSI changes in the next cycle. > Thanks, > > Bart.