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 X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C2A05C4361B for ; Tue, 15 Dec 2020 03:09:43 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 5EAED224D4 for ; Tue, 15 Dec 2020 03:09:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5EAED224D4 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id EE13D8D0027; Mon, 14 Dec 2020 22:09:42 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id EB8758D001C; Mon, 14 Dec 2020 22:09:42 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id DF6498D0027; Mon, 14 Dec 2020 22:09:42 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0008.hostedemail.com [216.40.44.8]) by kanga.kvack.org (Postfix) with ESMTP id C66238D001C for ; Mon, 14 Dec 2020 22:09:42 -0500 (EST) Received: from smtpin26.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 9E4D0180AD830 for ; Tue, 15 Dec 2020 03:09:42 +0000 (UTC) X-FDA: 77594036604.26.mist16_3f1367d27420 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin26.hostedemail.com (Postfix) with ESMTP id 7CB2B1804B668 for ; Tue, 15 Dec 2020 03:09:42 +0000 (UTC) X-HE-Tag: mist16_3f1367d27420 X-Filterd-Recvd-Size: 3343 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf02.hostedemail.com (Postfix) with ESMTP for ; Tue, 15 Dec 2020 03:09:42 +0000 (UTC) Date: Mon, 14 Dec 2020 19:09:39 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1608001781; bh=VLk7sNPo1aLrKYJUSU7RD3oaxsJbne+m3OyiHhyDg1s=; h=From:To:Subject:In-Reply-To:From; b=rlk7j5b/9fGDmz7L3EcQTibn/nBNddM+4PciXHUwbfny7+oFao3KRphPwU/YEp1Hl diQF7NM18fEaDskVDbRJXz/Fir6HQlhgW153IZSyWHvy8ztAgY7dOGmgKs0JCMiQi/ opyqMYVnQYl9gSh9DgWQshX4Dm7wGL6jrpBNe4D4= From: Andrew Morton To: adobriyan@gmail.com, akpm@linux-foundation.org, catalin.marinas@arm.com, corbet@lwn.net, geert@linux-m68k.org, gerg@linux-m68k.org, glaubitz@physik.fu-berlin.de, linux-mm@kvack.org, linux@armlinux.org.uk, mattst88@gmail.com, mm-commits@vger.kernel.org, mroos@linux.ee, rppt@linux.ibm.com, schmitzmic@gmail.com, tony.luck@intel.com, torvalds@linux-foundation.org, vgupta@synopsys.com, will@kernel.org Subject: [patch 109/200] ia64: discontig: paging_init(): remove local max_pfn calculation Message-ID: <20201215030939.1bMGkmDdD%akpm@linux-foundation.org> In-Reply-To: <20201214190237.a17b70ae14f129e2dca3d204@linux-foundation.org> User-Agent: s-nail v14.8.16 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: From: Mike Rapoport Subject: ia64: discontig: paging_init(): remove local max_pfn calculation The maximal PFN in the system is calculated during find_memory() time and it is stored at max_low_pfn then. Use this value in paging_init() and remove the redundant detection of max_pfn in that function. Link: https://lkml.kernel.org/r/20201101170454.9567-5-rppt@kernel.org Signed-off-by: Mike Rapoport Cc: Alexey Dobriyan Cc: Catalin Marinas Cc: Geert Uytterhoeven Cc: Greg Ungerer Cc: John Paul Adrian Glaubitz Cc: Jonathan Corbet Cc: Matt Turner Cc: Meelis Roos Cc: Michael Schmitz Cc: Russell King Cc: Tony Luck Cc: Vineet Gupta Cc: Will Deacon Signed-off-by: Andrew Morton --- arch/ia64/mm/discontig.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) --- a/arch/ia64/mm/discontig.c~ia64-discontig-paging_init-remove-local-max_pfn-calculation +++ a/arch/ia64/mm/discontig.c @@ -594,7 +594,6 @@ void __init paging_init(void) { unsigned long max_dma; unsigned long pfn_offset = 0; - unsigned long max_pfn = 0; int node; unsigned long max_zone_pfns[MAX_NR_ZONES]; @@ -616,13 +615,11 @@ void __init paging_init(void) #ifdef CONFIG_VIRTUAL_MEM_MAP NODE_DATA(node)->node_mem_map = vmem_map + pfn_offset; #endif - if (mem_data[node].max_pfn > max_pfn) - max_pfn = mem_data[node].max_pfn; } memset(max_zone_pfns, 0, sizeof(max_zone_pfns)); max_zone_pfns[ZONE_DMA32] = max_dma; - max_zone_pfns[ZONE_NORMAL] = max_pfn; + max_zone_pfns[ZONE_NORMAL] = max_low_pfn; free_area_init(max_zone_pfns); zero_page_memmap_ptr = virt_to_page(ia64_imva(empty_zero_page)); _