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Tue, 09 Sep 2025 10:28:07 -0700 (PDT) MIME-Version: 1.0 References: <20250902134846.GN186519@nvidia.com> <20250903150157.GH470103@nvidia.com> <20250904144240.GO470103@nvidia.com> <20250909155407.GO789684@nvidia.com> <20250909165718.GP789684@nvidia.com> In-Reply-To: <20250909165718.GP789684@nvidia.com> From: Pasha Tatashin Date: Tue, 9 Sep 2025 13:27:28 -0400 X-Gm-Features: Ac12FXyDOO8j6_d8TOe427ZRqpXdtWpY2e6HlPY_G5_tWsFdybukjZ54PUO6RWA Message-ID: Subject: Re: [PATCH v3 29/30] luo: allow preserving memfd To: Jason Gunthorpe Cc: Pratyush Yadav , Pratyush Yadav , jasonmiu@google.com, graf@amazon.com, changyuanl@google.com, rppt@kernel.org, dmatlack@google.com, rientjes@google.com, corbet@lwn.net, rdunlap@infradead.org, ilpo.jarvinen@linux.intel.com, kanie@linux.alibaba.com, ojeda@kernel.org, aliceryhl@google.com, masahiroy@kernel.org, akpm@linux-foundation.org, tj@kernel.org, yoann.congal@smile.fr, mmaurer@google.com, roman.gushchin@linux.dev, chenridong@huawei.com, axboe@kernel.dk, mark.rutland@arm.com, jannh@google.com, vincent.guittot@linaro.org, hannes@cmpxchg.org, dan.j.williams@intel.com, david@redhat.com, joel.granados@kernel.org, rostedt@goodmis.org, anna.schumaker@oracle.com, song@kernel.org, zhangguopeng@kylinos.cn, linux@weissschuh.net, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-mm@kvack.org, gregkh@linuxfoundation.org, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, rafael@kernel.org, dakr@kernel.org, bartosz.golaszewski@linaro.org, cw00.choi@samsung.com, myungjoo.ham@samsung.com, yesanishhere@gmail.com, Jonathan.Cameron@huawei.com, quic_zijuhu@quicinc.com, aleksander.lobakin@intel.com, ira.weiny@intel.com, andriy.shevchenko@linux.intel.com, leon@kernel.org, lukas@wunner.de, bhelgaas@google.com, wagi@kernel.org, djeffery@redhat.com, stuart.w.hayes@gmail.com, lennart@poettering.net, brauner@kernel.org, linux-api@vger.kernel.org, linux-fsdevel@vger.kernel.org, saeedm@nvidia.com, ajayachandra@nvidia.com, parav@nvidia.com, leonro@nvidia.com, witu@nvidia.com Content-Type: text/plain; charset="UTF-8" X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 0719E180006 X-Stat-Signature: u9mfgtdwdz9jrsa11qgzxix46s9huepm X-HE-Tag: 1757438888-15876 X-HE-Meta: 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 BL8in9LM f+a88rjawlSYB2iemq4y96NqcdH3K+fn2G+RYH7oO9xffFe07IiJT1qLd8ky6kDOwB4aWIRYgVd866nmBJLJuCbL4WyIzMM3veJxVBtf83+WkBw+r/dI7zLdCUVpT/FwIgInzcjgVFDevQDgkQ2p4pWDbaVQ6DW/5r2hEzjp9n0aCo3gF/2t956EMeQh5n1++JH1Kj6c/btzjLSeS7PN0bP0uuvab+cxvFPgtdT01DmrIQA4Eus8sxLh1cWHQ0u47jQFOdHy1bG+gwmH0l6lHgEz5f/B4+gHhg71G 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: > Yes, but lets design things to have this kind of logical code model > where there are specific serializations, with specific versions that > are at least discoverably by greping for some struct luo_xxx_ops or > whatever. > > Let's avoid open coding versioning stuff where it is hard to find and > hard to later make a manifest out of Fully agreed, the versioning has to be centralized (not open coded, and verified in a single place) & discoverable. > > Jason >