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Fri, 18 Apr 2025 05:18:02 -0700 (PDT) Message-ID: <93ef8629-4040-4773-beac-03c62f848727@kernel.dk> Date: Fri, 18 Apr 2025 06:18:00 -0600 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8 00/24] Provide a new two step DMA mapping API To: Leon Romanovsky , Marek Szyprowski , Christoph Hellwig , Keith Busch Cc: 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 , =?UTF-8?B?SsOpcsO0bWUgR2xpc3Nl?= , 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 References: Content-Language: en-US From: Jens Axboe In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 4/18/25 12:47 AM, Leon Romanovsky wrote: > Following recent on site LSF/MM 2025 [1] discussion, the overall > response was extremely positive with many people expressed their > desire to see this series merged, so they can base their work on it. > > It includes, but not limited: > * Luis's "nvme-pci: breaking the 512 KiB max IO boundary": > https://lore.kernel.org/all/20250320111328.2841690-1-mcgrof@kernel.org/ > * Chuck's NFS conversion to use one structure (bio_vec) for all types > of RPC transports: > https://lore.kernel.org/all/913df4b4-fc4a-409d-9007-088a3e2c8291@oracle.com > * Matthew's vision for the world without struct page: > https://lore.kernel.org/all/20250320111328.2841690-1-mcgrof@kernel.org/ > * Confidential computing roadmap from Dan: > https://lore.kernel.org/all/6801a8e3968da_71fe29411@dwillia2-xfh.jf.intel.com.notmuch > > This series is combination of effort of many people who contributed ideas, > code and testing and I'm gratefully thankful for them. Since I previously complained about performance regressions from this series, I re-tested the current code. I no longer see a performance regression on a AMD EPYC 9754 256 core box, nor on AMD EPYC 7763 128 core box. Tested-by: Jens Axboe -- Jens Axboe