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[221.255.142.61]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-11f2e2b4867sm20294552c88.6.2025.12.12.11.37.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 Dec 2025 11:37:54 -0800 (PST) From: Jens Axboe To: linux-block@vger.kernel.org, io-uring@vger.kernel.org, Pavel Begunkov Cc: Vishal Verma , tushar.gohad@intel.com, Keith Busch , Christoph Hellwig , Sagi Grimberg , Alexander Viro , Christian Brauner , Andrew Morton , Sumit Semwal , =?utf-8?q?Christian_K=C3=B6nig?= , linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org In-Reply-To: References: Subject: Re: (subset) [RFC v2 00/11] Add dmabuf read/write via io_uring Message-Id: <176556827123.851918.9976241171726294701.b4-ty@kernel.dk> Date: Fri, 12 Dec 2025 12:37:51 -0700 Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Mailer: b4 0.14.3 On Sun, 23 Nov 2025 22:51:20 +0000, Pavel Begunkov wrote: > Picking up the work on supporting dmabuf in the read/write path. There > are two main changes. First, it doesn't pass a dma addresss directly by > rather wraps it into an opaque structure, which is extended and > understood by the target driver. > > The second big change is support for dynamic attachments, which added a > good part of complexity (see Patch 5). I kept the main machinery in nvme > at first, but move_notify can ask to kill the dma mapping asynchronously, > and any new IO would need to wait during submission, thus it was moved > to blk-mq. That also introduced an extra callback layer b/w driver and > blk-mq. > > [...] Applied, thanks! [03/11] block: move around bio flagging helpers commit: d9f514d3e6ee48c34d70d637479b4c9384832d4f Best regards, -- Jens Axboe