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[96.255.20.138]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-890770e8cfasm146393266d6.21.2026.01.12.15.40.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 12 Jan 2026 15:40:54 -0800 (PST) Date: Mon, 12 Jan 2026 18:40:21 -0500 From: Gregory Price To: Balbir Singh Cc: dan.j.williams@intel.com, Yury Norov , linux-mm@kvack.org, cgroups@vger.kernel.org, linux-cxl@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, kernel-team@meta.com, longman@redhat.com, tj@kernel.org, hannes@cmpxchg.org, mkoutny@suse.com, corbet@lwn.net, gregkh@linuxfoundation.org, rafael@kernel.org, dakr@kernel.org, dave@stgolabs.net, jonathan.cameron@huawei.com, dave.jiang@intel.com, alison.schofield@intel.com, vishal.l.verma@intel.com, ira.weiny@intel.com, akpm@linux-foundation.org, vbabka@suse.cz, surenb@google.com, mhocko@suse.com, jackmanb@google.com, ziy@nvidia.com, david@kernel.org, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, rppt@kernel.org, axelrasmussen@google.com, yuanchu@google.com, weixugc@google.com, yury.norov@gmail.com, linux@rasmusvillemoes.dk, rientjes@google.com, shakeel.butt@linux.dev, chrisl@kernel.org, kasong@tencent.com, shikemeng@huaweicloud.com, nphamcs@gmail.com, bhe@redhat.com, baohua@kernel.org, yosry.ahmed@linux.dev, chengming.zhou@linux.dev, roman.gushchin@linux.dev, muchun.song@linux.dev, osalvador@suse.de, matthew.brost@intel.com, joshua.hahnjy@gmail.com, rakie.kim@sk.com, byungchul@sk.com, ying.huang@linux.alibaba.com, apopple@nvidia.com, cl@gentwo.org, harry.yoo@oracle.com, zhengqi.arch@bytedance.com Subject: Re: [RFC PATCH v3 0/8] mm,numa: N_PRIVATE node isolation for device-managed memory Message-ID: References: <20260108203755.1163107-1-gourry@gourry.net> <6604d787-1744-4acf-80c0-e428fee1677e@nvidia.com> <696566a1e228d_2071810076@dwillia2-mobl4.notmuch> <696571507b075_20718100d4@dwillia2-mobl4.notmuch> <966ce77a-c055-4ab8-9c40-d02de7b67895@nvidia.com> Precedence: bulk X-Mailing-List: cgroups@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <966ce77a-c055-4ab8-9c40-d02de7b67895@nvidia.com> On Tue, Jan 13, 2026 at 09:54:32AM +1100, Balbir Singh wrote: > On 1/13/26 08:10, dan.j.williams@intel.com wrote: > > Balbir Singh wrote: > > [..] > >>> I agree with Gregory the name does not matter as much as the > >>> documentation explaining what the name means. I am ok if others do not > >>> sign onto the rationale for why not include _MEMORY, but lets capture > >>> something that tries to clarify that this is a unique node state that > >>> can have "all of the above" memory types relative to the existing > >>> _MEMORY states. > >>> > >> > >> To me, N_ is a common prefix, we do have N_HIGH_MEMORY, N_NORMAL_MEMORY. > >> N_PRIVATE does not tell me if it's CPU or memory related. > > > > True that confusion about whether N_PRIVATE can apply to CPUs is there. > > How about split the difference and call this: > > > > N_MEM_PRIVATE > > > > To make it both distinct from _MEMORY and _HIGH_MEMORY which describe > > ZONE limitations and distinct from N_CPU. > > I'd be open to that name, how about N_MEMORY_PRIVATE? So then N_MEMORY > becomes (N_MEMORY_PUBLIC by default) > N_MEMORY_PUBLIC is forcing everyone else to change for the sake a new feature, better to keep it N_MEM[ORY]_PRIVATE if anything ~Gregory