From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0C38A3F54CE; Tue, 17 Mar 2026 16:57:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773766667; cv=none; b=gNBpbO4b3nwQFXCCeZoqw3eaYzdFRSUkPHnjhBiSmV/5/A8MF+t7e+He/CYREp7LMPqUv5wRRq66EBYi3unqV7iKLMFWpQ0IhOu5xLxCowtVki8m4i11qpiVpGWdYjCRq8zLjAtkWuVjEM2yP6IbgtlNsX1sthvoUUVL92VYlmM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773766667; c=relaxed/simple; bh=GmzhoQ0PJsvg3r41ZGNVjXu6dhy2NO2MgeEoTaVUJyc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=WkfI/Re8iavQ1zRA4yfNW213wQJUclgZpYGS+5LtMOZADm+7K0LcS0OwMsN57/NK1ln7gWzc0GTBlGjTbSn7yL1OVkXLgruYWmzAwnpd22I6BmU1mLDPBIpq279RHCBGIK4CnezZZFOa4PdoqDGvLI8lpJOUbsm3lXm0IwZp3ns= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KvOITOgO; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="KvOITOgO" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 46E24C2BCAF; Tue, 17 Mar 2026 16:57:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773766666; bh=GmzhoQ0PJsvg3r41ZGNVjXu6dhy2NO2MgeEoTaVUJyc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KvOITOgO+ibK/lPOLHPXPeB+/05jkCMxW9PlT0bA7fNiSqObIrPhWQfImj7g4NsUq Imap3UUZb/Tp92VIG/zhLpyI/ggtGmC52Tg17EJDKgxFAAbSbIyPBQcNonDJOD1ocO L8whLAIiEhbgmmYDfK3CdjQ+aUo7ddrVdb+qeRT4lLLZqEq7USP2ESW+zqcvTd0sYT YfZHO9mKUGFpb6acRxS0xvf8lbNt07LJo1J95hp1nZA9qI9DHCQqVIi/4ZYj9rmbQA +NURaueDz8fkDy4jRiEVRYtzvnnIoPxRfsfcFjvpDQcQRwlcUlyEVMvJ3rwghpVy7e 99r7NDF8B9EGg== From: "David Hildenbrand (Arm)" To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, linux-cxl@vger.kernel.org, "David Hildenbrand (Arm)" , Andrew Morton , Oscar Salvador , Axel Rasmussen , Yuanchu Xie , Wei Xu , Lorenzo Stoakes , "Liam R. 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> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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