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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 263EFE9410B for ; Fri, 2 Jan 2026 07:05:32 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4djF8B4pGPz2yYY; Fri, 02 Jan 2026 18:05:30 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip=172.105.4.254 ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1767337530; cv=none; b=hftUDDE6KV/r35RLTC3IfgEHsS9jeo528KLjDo7yg77D/XmvabMKrKbx4zkjyT8UuNrTVcAjJMasQaow47K69BZ9UMk1QSTZB1iz54YUjnaQs5jHIIyDpRJp7wH2M22h7UvzumIymGteng9ak2Qyk8ax+b3TCXwkMxhMmPwMQQp+N3VtoJbxSHexwWU981nIT7BsK5unJ3DB7T7XdUa1YMUdpdA0LvTCnyd4OQK3AajgPhTV6g5QjJ5Ahqa38PAPnIlEgzJ+mZwpevFhpWN+Rpn4iYWrLXWekOKF4qXEQBt+pdfn/DIVv2h1mIJPf/GXMBwXnKDcoYkpFk1ezKoQeA== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1767337530; c=relaxed/relaxed; bh=EUP8A0oU4o/USGU4JF7iSIOLVJ/2u6llFeNZ4HBfxOs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=eh9BW0wKLkOvHxAjMhzwOUIc70Txo/4O5TCRJYpNW+uCHpLZ6V2cgnZEV+l5mukOcDEoX1RwRnQAIof+deRlz8dJHJu+iAesI32liBgzCgfSrCTrWlJALoHRV/t4bRsZJboaqmzj9pzKsTsqI+LNY2rJ9Z+UY3riDLAamentWSy3BJiot5c+5VGki7Eacwoo/DKjSlQAoyDIY3YzZ1sv0fnLiHbYe/++SzsbzfGqkzeef6MSbLpJNJtwxeuMP7HZ5pKX2r0m4qj5oPV9/TX8xOTpHU5xkyq4LoSn73VC0O4p64dbHTUerPgIHUbmeZ8+3OAOP0vL0cHNn4VQ/X8aCg== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=T7gvefAb; dkim-atps=neutral; spf=pass (client-ip=172.105.4.254; helo=tor.source.kernel.org; envelope-from=rppt@kernel.org; receiver=lists.ozlabs.org) smtp.mailfrom=kernel.org Authentication-Results: lists.ozlabs.org; dmarc=pass (p=quarantine dis=none) header.from=kernel.org Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=T7gvefAb; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=172.105.4.254; helo=tor.source.kernel.org; envelope-from=rppt@kernel.org; receiver=lists.ozlabs.org) Received: from tor.source.kernel.org (tor.source.kernel.org [172.105.4.254]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4djF8961lqz2yGq for ; Fri, 02 Jan 2026 18:05:29 +1100 (AEDT) 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> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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