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Petersen" Cc: Javier Gonzalez , Matthew Wilcox , Keith Busch , Christoph Hellwig , Keith Busch , "linux-block@vger.kernel.org" , "linux-nvme@lists.infradead.org" , "linux-scsi@vger.kernel.org" , "io-uring@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" , "joshi.k@samsung.com" References: <9d61a62f-6d95-4588-bcd8-de4433a9c1bb@acm.org> <8ef1ec5b-4b39-46db-a4ed-abf88cbba2cd@acm.org> <20241205080342.7gccjmyqydt2hb7z@ubuntu> <20241210095333.7qcnuwvnowterity@ubuntu> Content-Language: en-US From: Bart Van Assche In-Reply-To: <20241210095333.7qcnuwvnowterity@ubuntu> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241210_135855_858496_44532EFC X-CRM114-Status: UNSURE ( 7.37 ) X-CRM114-Notice: Please train this message. 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 12/10/24 1:53 AM, Nitesh Shetty wrote: > We did implement payload based approach in the past[1] which aligns > with this. Since we wait till the REQ_OP_COPY_SRC completes, there won't > be issue with async type of dm IOs. > Since this would be an internal kernel plumbing, we can optimize/change > the approach moving forward. > If you are okay with the approach, I can give a respin to that version. Yes, I remember this. Let's wait with respinning/reposting until there is agreement about the approach for copy offloading. Thanks, Bart.