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 994CDEEB57A for ; Fri, 2 Jan 2026 07:05:01 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 0A83D6B00A1; Fri, 2 Jan 2026 02:05:01 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 052716B00B0; Fri, 2 Jan 2026 02:05:00 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E8D7C6B00B1; Fri, 2 Jan 2026 02:05:00 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id D9AA76B00A1 for ; Fri, 2 Jan 2026 02:05:00 -0500 (EST) Received: from smtpin06.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay03.hostedemail.com (Postfix) with ESMTP id 896FCB89E8 for ; Fri, 2 Jan 2026 07:05:00 +0000 (UTC) X-FDA: 84286136760.06.C68FE85 Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) by imf15.hostedemail.com (Postfix) with ESMTP id CB600A000C for ; Fri, 2 Jan 2026 07:04:58 +0000 (UTC) Authentication-Results: imf15.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=T7gvefAb; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf15.hostedemail.com: domain of rppt@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=rppt@kernel.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1767337498; a=rsa-sha256; cv=none; b=YpMQ+RGxvGr5pglV8UmS7JYctBvVQgS079S5DDc3/ph2kIbUaKfaBotQHNWYCVyvmKG+NO nUeTvrp60UNBf8qdWTrUaDH9+S/KCLPFsw/pQuPVHOz+A4Lzu4BUYK6onEZGlbQXa2eMrF MJE2nEar3FRzXzcfZys0eTh6Eudnib4= ARC-Authentication-Results: i=1; imf15.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=T7gvefAb; dmarc=pass (policy=quarantine) header.from=kernel.org; spf=pass (imf15.hostedemail.com: domain of rppt@kernel.org designates 172.105.4.254 as permitted sender) smtp.mailfrom=rppt@kernel.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1767337498; 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=v2BAOd6+3atIZvl57azrgFymMExx8kTFBqRuUzI6GL1rYFbcz7YNgWRM6QrYKjOzcFUQPJ hWx5vFPNsZL7ODrj7Fczf5H81bVlNbZ0tUBnY0kxTqSZYBoYOH+2Bm1C9kcnqyQoKe+6F+ 53MFx2zGnaQFwPvb9G4woyeDHVy0NUY= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id ED24960125; Fri, 2 Jan 2026 07:04:57 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C0DB2C116B1; Fri, 2 Jan 2026 07:04:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1767337497; bh=2fA0ShJu41IpFxgmfkKiNARLhjMIlJQdtqcPZZQwJv0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=T7gvefAbqeIT5CvtwMrVVTK3a8rwBZYgQQiC3jHQXzpJtttvm2Q6kTJvhapk6XZcb BxF+dcRK4sWnZDHuyEkhkSgVzVSkGMHcSd/3KadF+TMHf4PFBbT6C4ZlsbwfSZyy+F s+tJoke565QPqUJ3BSWynVtoU3vWCNU4D0WB5cy4Pj6qI7fE42bh/vZ1QFMsek2t7H 8KgpY0BjGMbdV/PjHSJG1h5Rp2t2bV2PF7HizyPVMFjuPeL5kHGynDuCznGy7tyi69 sNqgANgSfgAUJSU8eV6M1uaFWSVde2/T7fCS5n7hNnv/5BeiutkN335sYt5mdY+Y0b IsCntvk5rQtpQ== 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 , "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 , 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 v2 19/28] um: introduce arch_zone_limits_init() Date: Fri, 2 Jan 2026 08:59:55 +0200 Message-ID: <20260102070005.65328-20-rppt@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260102070005.65328-1-rppt@kernel.org> References: <20260102070005.65328-1-rppt@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: CB600A000C X-Stat-Signature: byno36axtpawkiu9yt934ph5oia4nnpc X-HE-Tag: 1767337498-292334 X-HE-Meta: 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 DFa6/jZl 294QkYbeNenm1hRAE+pAFJuf2HeM1gOUUacp6OOxQe6Opi/EdrbsDMcxplEiAXIsMSLLQ97AeOgM/v+Pad/DvGxUdleckSQsvm0tb81HwJTPtOtjdfOQ7QRAtvgKDTKbfATOiuF3stGP/JhXeTiJ4kMGb8AC9eUKZZNxPsIArpDnjgaGvl3kRzaYuJWvSosa7mLwVJE/CP4/O6nT5X+zEdjjw/dgwC5+7Au65YfiRxeaL9sMJEeerdnHQ2k1KY9Wdv/MWpssvQQBavtkawIPTLC6Gog== 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