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[68.160.173.162]) by smtp.gmail.com with ESMTPSA id i7-20020a05620a404700b006b5cc25535fsm297002qko.99.2022.09.01.17.16.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Sep 2022 17:16:26 -0700 (PDT) Date: Thu, 1 Sep 2022 20:16:25 -0400 From: Mike Snitzer To: Pankaj Raghav Cc: agk@redhat.com, snitzer@kernel.org, axboe@kernel.dk, damien.lemoal@opensource.wdc.com, hch@lst.de, bvanassche@acm.org, pankydev8@gmail.com, Johannes.Thumshirn@wdc.com, linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, linux-block@vger.kernel.org, dm-devel@redhat.com, gost.dev@samsung.com, jaegeuk@kernel.org, matias.bjorling@wdc.com, Luis Chamberlain Subject: Re: [PATCH v12 08/13] dm-zoned: ensure only power of 2 zone sizes are allowed Message-ID: References: <20220823121859.163903-1-p.raghav@samsung.com> <20220823121859.163903-9-p.raghav@samsung.com> MIME-Version: 1.0 In-Reply-To: <20220823121859.163903-9-p.raghav@samsung.com> X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220901_171902_803940_E128602F X-CRM114-Status: GOOD ( 10.52 ) X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org On Tue, Aug 23 2022 at 8:18P -0400, Pankaj Raghav wrote: > From: Luis Chamberlain > > dm-zoned relies on the assumption that the zone size is a > power-of-2(po2) and the zone capacity is same as the zone size. > > Ensure only po2 devices can be used as dm-zoned target until a native > support for zoned devices with non-po2 zone size is added. > > Reviewed-by: Hannes Reinecke > Reviewed-by: Damien Le Moal > Signed-off-by: Luis Chamberlain > Signed-off-by: Pankaj Raghav Reviewed-by: Mike Snitzer