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b=hZVOvTXyIaWu4bWId/pgxHxX3JrlaR2NClh5I234YwqF4+sVvvroq/dIj+b8OjPW3 8orSr5dvocbOlvIf0eFunxzGREOoUPlzqIip2kuqN0MhBpEz0dNLFk9675T/YjxGz+ RpafWcy0eGJ6cWbhqqpSjQkJNob79JzSWhPiR9jAtFbZN6VWaYovYldutOlXgPlHkY DDy7D7JXKoau0CdAa1x6kIMY8EFuRXqN0o+H/pshkFrr5423vPoezWmpzPSxrwuAnP GDNBoXhQDCW3daIwdE2ndGPPWwR835rpe3Wze8PBHYJYp2ZHjHNeCXv2uyCrCUPv4I aEpVIWzBnV4Aw== Date: Wed, 23 Apr 2025 13:03:14 +0300 From: Leon Romanovsky To: Christoph Hellwig Cc: Keith Busch , Marek Szyprowski , Jens Axboe , Jake Edge , Jonathan Corbet , Jason Gunthorpe , Zhu Yanjun , Robin Murphy , Joerg Roedel , Will Deacon , Sagi Grimberg , Bjorn Helgaas , Logan Gunthorpe , Yishai Hadas , Shameer Kolothum , Kevin Tian , Alex Williamson , =?iso-8859-1?B?Suly9G1l?= Glisse , Andrew Morton , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linux-rdma@vger.kernel.org, iommu@lists.linux.dev, linux-nvme@lists.infradead.org, linux-pci@vger.kernel.org, kvm@vger.kernel.org, linux-mm@kvack.org, Niklas Schnelle , Chuck Lever , Luis Chamberlain , Matthew Wilcox , Dan Williams , Kanchan Joshi , Chaitanya Kulkarni , Nitesh Shetty Subject: Re: [PATCH v9 23/24] nvme-pci: convert to blk_rq_dma_map Message-ID: <20250423100314.GH48485@unreal> References: <7c5c5267cba2c03f6650444d4879ba0d13004584.1745394536.git.leon@kernel.org> <20250423092437.GA1895@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250423092437.GA1895@lst.de> X-Rspamd-Server: rspam12 X-Rspamd-Queue-Id: 45CFD1C000B X-Rspam-User: X-Stat-Signature: a1fkcafzzc988k6p8k1j96nip77zf36s X-HE-Tag: 1745402600-224222 X-HE-Meta: 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 z29g2Rbv b4Cc4KejlHTG2iXEKCKtVyT0OWvPRp7hlWpeO6pq8lEhZVnOMSS9NCE/GIIdCzNzgzqY2i3VnlnShi1rS2R/cGB2KUcHkZmJ/9oHOTF+Y54JY5+LnOw0EgrpJw5uVka7OJwyhIgY2rdTj9CsFAeTHXDAoDGbJxQMBUuvQ+3LdqiMRTI8dk1aHusU7M5t2Y7r/Qu7Qun7W1E6qpaj6cGbRzTw6RFRaJVvyX063o6ylhDNciNdQx3f8rr8HFUeTLz54f6EScmAkdNtgVOUhzyAXes+B3up9W2xGMQdrImpMsNr79RE= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Wed, Apr 23, 2025 at 11:24:37AM +0200, Christoph Hellwig wrote: > I don't think the meta SGL handling is quite right yet, and the > single segment data handling also regressed. Totally untested > patch below, I'll try to allocate some testing time later today. Christoph, Can we please progress with the DMA patches and leave NVMe for later? NVMe is one the users for new DMA API, let's merge API first. Thanks