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[173.79.60.52]) by smtp.gmail.com with ESMTPSA id af79cd13be357-930b545e47bsm957792285a.35.2026.07.20.12.35.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Jul 2026 12:35:12 -0700 (PDT) From: Gregory Price To: linux-mm@kvack.org Cc: Zhigang.Luo@amd.com, arun.george@samsung.com, balbirs@nvidia.com, brendan.jackman@linux.dev, yuzenghui@huawei.com, apopple@nvidia.com, alucerop@amd.com, matthew.brost@intel.com, akpm@linux-foundation.org, david@kernel.org, ljs@kernel.org, liam@infradead.org, vbabka@kernel.org, rppt@kernel.org, surenb@google.com, mhocko@suse.com, corbet@lwn.net, skhan@linuxfoundation.org, gregkh@linuxfoundation.org, rafael@kernel.org, dakr@kernel.org, djbw@kernel.org, vishal.l.verma@intel.com, dave.jiang@intel.com, alison.schofield@intel.com, osandov@osandov.com, jannh@google.com, pfalcato@suse.de, jackmanb@google.com, hannes@cmpxchg.org, ziy@nvidia.com, pbonzini@redhat.com, osalvador@suse.de, joshua.hahnjy@gmail.com, rakie.kim@sk.com, byungchul@sk.com, gourry@gourry.net, ying.huang@linux.alibaba.com, kasong@tencent.com, qi.zheng@linux.dev, shakeel.butt@linux.dev, baohua@kernel.org, axelrasmussen@google.com, yuanchu@google.com, weixugc@google.com, yury.norov@gmail.com, linux@rasmusvillemoes.dk, longman@redhat.com, ridong.chen@linux.dev, tj@kernel.org, mkoutny@suse.com, sj@kernel.org, jgg@ziepe.ca, jhubbard@nvidia.com, peterx@redhat.com, baolin.wang@linux.alibaba.com, npache@redhat.com, ryan.roberts@arm.com, dev.jain@arm.com, lance.yang@linux.dev, usama.arif@linux.dev, xu.xin16@zte.com.cn, chengming.zhou@linux.dev, roman.gushchin@linux.dev, muchun.song@linux.dev, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, driver-core@lists.linux.dev, nvdimm@lists.linux.dev, linux-cxl@vger.kernel.org, linux-debuggers@vger.kernel.org, linux-fsdevel@vger.kernel.org, kvm@vger.kernel.org, cgroups@vger.kernel.org, damon@lists.linux.dev, linux-kselftest@vger.kernel.org, kernel-team@meta.com Subject: [PATCH v5 13/36] mm/mempolicy: disallow NUMA Balancing prot_none on private nodes Date: Mon, 20 Jul 2026 15:34:07 -0400 Message-ID: <20260720193431.3841992-14-gourry@gourry.net> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260720193431.3841992-1-gourry@gourry.net> References: <20260720193431.3841992-1-gourry@gourry.net> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Stat-Signature: t7fhipypj33refpyrttp1a63xe63nr9p X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: DCE1E140012 X-Rspam-User: X-HE-Tag: 1784576113-551174 X-HE-Meta: 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 p0xq/7ey oSjOBKmSDtpyrXMGnOd6lTzC0fAcZpUZYSwnF8nrjxkA0pedXRglpVARwBnAJv5hIXWiklHeGe3COcFlg+Uyi69dQm4VzR64wC3HaSwi4v3q6tdZ7oix74t7lFq/ixhAzUn+3SY20ySYM4iEcOGgQsW2i8K6rO6gjau7PrfeDOwE/Xy2Uk+hTKNMcpXpWNVILZPZZU6ohn3KVk/yDvBGJOFN8JBVIbW57pwzPMVkXHLhIWasrqcFCDnCw7vikdYrsCTiUQy5K2V/4vJvBp0FAtP6nKZCOQvoiK/M+ThcPy7rFu53u/9N4ceWHI4faNT80DRqK2TwsuvBoB9GGjsdt0+g8CqNo7MVG4NAobWxqCfJunxgkoHZS8k/5OY5YYbtjdWXgMrrXq8H/SpDYmau5v9/OOJOIhA8mxPcw7z3NhnS3Z6U= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Skip private node memory the same way zone device memory is skipped, since private nodes do not presently support migration. Signed-off-by: Gregory Price --- mm/mempolicy.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 8e8763f6e5f5b..2b76c57a460c9 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -845,7 +845,7 @@ bool folio_can_map_prot_numa(struct folio *folio, struct vm_area_struct *vma, { int nid; - if (!folio || folio_is_zone_device(folio) || folio_test_ksm(folio)) + if (!folio || folio_is_private_managed(folio) || folio_test_ksm(folio)) return false; /* Also skip shared copy-on-write folios */ -- 2.53.0-Meta