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Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko Subject: [PATCH 11/14] mm/sparse: drop set_section_nid() from sparse_add_section() Date: Tue, 17 Mar 2026 17:56:49 +0100 Message-ID: <20260317165652.99114-12-david@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260317165652.99114-1-david@kernel.org> References: <20260317165652.99114-1-david@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: EBD71140010 X-Stat-Signature: sdcdt5u6oqw75c7ecesf3rq18rwptdkr X-Rspam-User: X-Rspamd-Server: rspam06 X-HE-Tag: 1773766667-759489 X-HE-Meta: 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 kiW2/neD z6KugVYpJnhJCrBftBFOAAyllqVGwC1hYYGtWCBeJRntLnKGZlXF/qlVKkk+4ZlUGval5Iix7t/Kby2S/zljmKV5SYOLjYszqhxvXKTNi84zoURpk+doYZodJP9PFgJMs0qkpEOwTHYsq/UZbdYQ7nva0fXsZQr6It7pZPdkY3wv2F+TOSSjty3HLuNWzyRaK+lo5n+5Rl0EU3IbLfw6UCQF2XQMqT4/wqOpHCuLFOcxK6Odp03S+zpbP4IZjykl3xFnTPwVerrzQGYO/mBc8JUV57I/NIGPHYtSL Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: CONFIG_MEMORY_HOTPLUG is CONFIG_SPARSEMEM_VMEMMAP-only. And CONFIG_SPARSEMEM_VMEMMAP implies that NODE_NOT_IN_PAGE_FLAGS cannot be set: see include/linux/page-flags-layout.h ... #elif defined(CONFIG_SPARSEMEM_VMEMMAP) #error "Vmemmap: No space for nodes field in page flags" ... So let's remove the set_section_nid() call to prepare for moving CONFIG_MEMORY_HOTPLUG to mm/sparse-vmemmap.c Signed-off-by: David Hildenbrand (Arm) --- mm/sparse.c | 1 - 1 file changed, 1 deletion(-) diff --git a/mm/sparse.c b/mm/sparse.c index 7b0bfea73a9b..b5a2de43ac40 100644 --- a/mm/sparse.c +++ b/mm/sparse.c @@ -769,7 +769,6 @@ int __meminit sparse_add_section(int nid, unsigned long start_pfn, page_init_poison(memmap, sizeof(struct page) * nr_pages); ms = __nr_to_section(section_nr); - set_section_nid(section_nr, nid); __section_mark_present(ms, section_nr); /* Align memmap to section boundary in the subsection case */ -- 2.43.0