From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 05AFBD2502E for ; Sun, 11 Jan 2026 08:26:30 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 6C4316B00B6; Sun, 11 Jan 2026 03:26:29 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 69BCF6B00B7; Sun, 11 Jan 2026 03:26:29 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 5A7EE6B00B8; Sun, 11 Jan 2026 03:26:29 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id 490866B00B6 for ; Sun, 11 Jan 2026 03:26:29 -0500 (EST) Received: from smtpin09.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id E5220B830D for ; Sun, 11 Jan 2026 08:26:28 +0000 (UTC) X-FDA: 84319001256.09.8C6DB69 Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by imf27.hostedemail.com (Postfix) with ESMTP id 4137940002 for ; Sun, 11 Jan 2026 08:26:27 +0000 (UTC) Authentication-Results: imf27.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=cE1cYxN4; spf=pass (imf27.hostedemail.com: domain of rppt@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=rppt@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1768119987; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=EUP8A0oU4o/USGU4JF7iSIOLVJ/2u6llFeNZ4HBfxOs=; b=Yhi/i/GVwDSWYy0pe6cTd2wp8cJbePxvNgUN7QN78RVZDh0nH4WagrXa2ES6a38qiIDzyP 7p6xxnXX0NIBQD2iHwh1p5apA/w9hu9xJN0S+zVV9iyZhNjy78vtqDxDrrt3C0Gg+eSNHV Bmup7Rzer+OKz8tf9D4snKdeam6nM4g= ARC-Authentication-Results: i=1; imf27.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=cE1cYxN4; spf=pass (imf27.hostedemail.com: domain of rppt@kernel.org designates 172.234.252.31 as permitted sender) smtp.mailfrom=rppt@kernel.org; dmarc=pass (policy=quarantine) header.from=kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1768119987; a=rsa-sha256; cv=none; b=xc6mX40m6kkARti4HJH41v0JtUceZrlTlGMypB+JLF6w2kxWbORc8o5acBj7smHCwynJae umWaBtayJ8wupDBpfwC50Paq7go6fnUJUkdVXAx44wfuiabExTR9MqEYTk/h9RyG+TcgFA 16jVWvx5VHdw9LJeN+8Kos5cYHp7tZQ= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sea.source.kernel.org (Postfix) with ESMTP id 5B11F429FA; Sun, 11 Jan 2026 08:26:26 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9902BC16AAE; Sun, 11 Jan 2026 08:26:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768119986; bh=2fA0ShJu41IpFxgmfkKiNARLhjMIlJQdtqcPZZQwJv0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cE1cYxN4XiRu8w05462pUh7mJ7YsVKuFjZN060SdsKaL4HwvgafRghrCyOjRFhfks goIC3meGsc011NdlQvuX6sIIgoPYYnguJE4V0ezIriNOLb6UY7TUl/H5KBLc8jHspZ bqpyaiW+yhS8K0JZpP7OoWNV42LbmkHolciEGY3Q8P86DZkjSJMAXJFu4snmxoEaeq r3tJN1kJLVtUQz/4sqhj/7RV76IDG6QOBqIhTOn9+KWKkfscjeNSTO2ALgfmelbFhD UIdusobMPUaMKF4j5L6OSMUErDZGo+V2brMOeeP2O1yqFNvH5sQW4orMNneYRJx38a Qg78VBIC985zA== From: Mike Rapoport To: Andrew Morton Cc: Alex Shi , Alexander Gordeev , Andreas Larsson , Borislav Petkov , Brian Cain , "Christophe Leroy (CS GROUP)" , Catalin Marinas , "David S. Miller" , Dave Hansen , David Hildenbrand , Dinh Nguyen , Geert Uytterhoeven , Guo Ren , Heiko Carstens , Helge Deller , Huacai Chen , Ingo Molnar , Johannes Berg , John Paul Adrian Glaubitz , Jonathan Corbet , Klara Modin , "Liam R. Howlett" , Lorenzo Stoakes , Magnus Lindholm , Matt Turner , Max Filippov , Michael Ellerman , Michal Hocko , Michal Simek , Mike Rapoport , Muchun Song , Oscar Salvador , Palmer Dabbelt , Pratyush Yadav , Richard Weinberger , Ritesh Harjani , Russell King , Stafford Horne , Suren Baghdasaryan , Thomas Bogendoerfer , Thomas Gleixner , Vasily Gorbik , Vineet Gupta , Vlastimil Babka , Will Deacon , x86@kernel.org, linux-alpha@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-cxl@vger.kernel.org, linux-doc@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-kernel@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, linux-openrisc@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-um@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, loongarch@lists.linux.dev, sparclinux@vger.kernel.org Subject: [PATCH v3 20/29] um: introduce arch_zone_limits_init() Date: Sun, 11 Jan 2026 10:20:54 +0200 Message-ID: <20260111082105.290734-21-rppt@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260111082105.290734-1-rppt@kernel.org> References: <20260111082105.290734-1-rppt@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 4137940002 X-Stat-Signature: zgc3q79aao8jn76jtamcc6jofwg5jdp1 X-HE-Tag: 1768119987-801264 X-HE-Meta: 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 j1LUKxBT xdAB44S7Ps0U5dWQZQ0nLRT715XZ+EXhoz7K750uqbQu0iMcK2lH8y7uP9KvJKo3RsJQg/7ALbVl8fGH+9jz73yGWEyU5jzhQKDj0VnL25SIUfo7R5HJR4Yy6kFnPYpOMZL1zfuBeI2QJnd/EFN803AxfDxcFSF/NbUoYmLdh7z6cqAetsJGF2xBm/r2AN4mMSktYPFiMxCwjPmMmuerMBuJ0w92R4q+KlmpKets4VWsi/JIiTbkK0y4eXeQUBob1eQzxxLbFBBx02xMh4ILcAaekUxdvN9w9MTptWVP8b/QlQ+TjxZwIPgTE0/xbP8de+6OWjxFYJGInzbmOrfWU/8CcGPNpLCY1ggdl 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: From: "Mike Rapoport (Microsoft)" Move calculations of zone limits to a dedicated arch_zone_limits_init() function. Later MM core will use this function as an architecture specific callback during nodes and zones initialization and thus there won't be a need to call free_area_init() from every architecture. Signed-off-by: Mike Rapoport (Microsoft) --- arch/um/kernel/mem.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c index 39c4a7e21c6f..2ac4e9debedd 100644 --- a/arch/um/kernel/mem.c +++ b/arch/um/kernel/mem.c @@ -84,6 +84,11 @@ void __init mem_init(void) kmalloc_ok = 1; } +void __init arch_zone_limits_init(unsigned long *max_zone_pfns) +{ + max_zone_pfns[ZONE_NORMAL] = high_physmem >> PAGE_SHIFT; +} + void __init paging_init(void) { unsigned long max_zone_pfn[MAX_NR_ZONES] = { 0 }; @@ -94,7 +99,7 @@ void __init paging_init(void) panic("%s: Failed to allocate %lu bytes align=%lx\n", __func__, PAGE_SIZE, PAGE_SIZE); - max_zone_pfn[ZONE_NORMAL] = high_physmem >> PAGE_SHIFT; + arch_zone_limits_init(max_zone_pfn); free_area_init(max_zone_pfn); } -- 2.51.0