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a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1745133290; bh=SpNXshGC4uEadiZ9mic8rX/qeMHOKG3enirsdDCvXf0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=N9hnRRtmNHfnuM6gp/E+KrJvokqSb71oYMhBqMYRZgnnOGfewaBmv+VxsqSvw2mx7 2fUdjbY/H46G3VKGRBnVwSy+Gjl4Z6RSMWeY14FJU6YmfQyL7kYGD5MBt7GIedAPYf WshWPr5dJTN9Wmr96QKS9Qodv+qsrhzEMuJXAU6Bd5tnDEQoGrprjYI9sbQ8XZCPzs 8+caVRnyAL4BM9TX5W2rx5tKmtonDo4tGbYQ3BgJlrPC3GoZ4wZDsnfOB4NIgP2BY7 tY3+8mvVofskwTyS6lS/IiWKwTGTcxkr24eh0/y5LbaD9SKuEGZVJwz5YEwht/9f63 yZpV0FW9cb2BA== Date: Sun, 20 Apr 2025 10:14:46 +0300 From: Leon Romanovsky To: Jens Axboe Cc: Marek Szyprowski , Christoph Hellwig , Keith Busch , 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 Subject: Re: [PATCH v8 00/24] Provide a new two step DMA mapping API Message-ID: <20250420071446.GB10635@unreal> References: <93ef8629-4040-4773-beac-03c62f848727@kernel.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <93ef8629-4040-4773-beac-03c62f848727@kernel.dk> X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 36B6C100005 X-Stat-Signature: ifm5yjuwgz4trnsjn646f1jwihuccabh X-Rspam-User: X-HE-Tag: 1745133292-714496 X-HE-Meta: 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 rXW6Wxgw iL4wWivtQeUBH2amYcXybWeVlkuQmSaVw8+NK36J4w6GECPJ6GT30ioOhBwFuNlBy/M8oJ7aCmHm6MWeSvuwXFQ+rSrG0COIUJw0SJl8guk2yLdY/4heyT66doUMaLOQvJkgfx33A0ofDwrvGBRRiaNbSZOpE1Ptpy5Dk+5Hx5x6VyyttLpWuoEeDOTuN1dgT3pSYk+4c/2UzT4e+L9Iyv6Rk2r0ziWhEripHtQnTz/D/uEMSt809NzJLxVN/ss0bywuUiRK1ymNJpKHxAYJMT7SDsxx/pxXsSKmSKjoDgAXxLljrXZenrDe329zaYMRQmznUc6uf0tPrhZE= 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 Fri, Apr 18, 2025 at 06:18:00AM -0600, Jens Axboe wrote: > 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 Thanks a lot. > > -- > Jens Axboe >