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=-7.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 C7981C433DF for ; Fri, 7 Aug 2020 06:25:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9F50E22D00 for ; Fri, 7 Aug 2020 06:25:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1596781546; bh=eaUg2ySwiBrrCh4WFQpxhVU7BnmKkv/9havG05Zn9Ig=; h=Date:From:To:Subject:In-Reply-To:Reply-To:List-ID:From; b=jZZAAMsWBiWa/3hMnsUyW+KNS9qd8cdWHBFxmaxGW+CPkgM2ySxYKWUDkgOBqrI80 84bZnz2MZ0Rdf9KIM//tdyPCrVAp2YSRM3ZZElcGDARxoJYfhfZlzDqaj22JT2GXsA cGTFsFVlGIb944yGPPmQuQIGAKB+fbTZ5UXY4Hhw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726128AbgHGGZq (ORCPT ); Fri, 7 Aug 2020 02:25:46 -0400 Received: from mail.kernel.org ([198.145.29.99]:34478 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725805AbgHGGZq (ORCPT ); Fri, 7 Aug 2020 02:25:46 -0400 Received: from localhost.localdomain (c-73-231-172-41.hsd1.ca.comcast.net [73.231.172.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 4FF8022CF6; Fri, 7 Aug 2020 06:25:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1596781545; bh=eaUg2ySwiBrrCh4WFQpxhVU7BnmKkv/9havG05Zn9Ig=; h=Date:From:To:Subject:In-Reply-To:From; b=LqxYn5dAo4RQ+401RgaLAdneeLg1i2Alioea7KOuoVPAYA0DEEdVMSjnsNBXixg8T FlzAmErCs1Aa51CyjbGE2GZU2mgNwp7vAi/K6Is9g5py1zQ9tzWXFynBaM+OvVP3yv YCIcp3H7OoFRJkqUDWJUGNlUwh+kmrN7O0KAu9FA= Date: Thu, 06 Aug 2020 23:25:44 -0700 From: Andrew Morton To: akpm@linux-foundation.org, linux-mm@kvack.org, mgorman@suse.de, mm-commits@vger.kernel.org, richard.weiyang@linux.alibaba.com, torvalds@linux-foundation.org Subject: [patch 149/163] mm/page_alloc.c: extract the common part in pfn_to_bitidx() Message-ID: <20200807062544.E0JWtD2Nu%akpm@linux-foundation.org> In-Reply-To: <20200806231643.a2711a608dd0f18bff2caf2b@linux-foundation.org> User-Agent: s-nail v14.8.16 Sender: mm-commits-owner@vger.kernel.org Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org From: Wei Yang Subject: mm/page_alloc.c: extract the common part in pfn_to_bitidx() The return value calculation is the same both for SPARSEMEM or not. Just take it out. Link: http://lkml.kernel.org/r/20200623124201.8199-2-richard.weiyang@linux.alibaba.com Signed-off-by: Wei Yang Cc: Mel Gorman Signed-off-by: Andrew Morton --- mm/page_alloc.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) --- a/mm/page_alloc.c~mm-page_allocc-extract-the-common-part-in-pfn_to_bitidx +++ a/mm/page_alloc.c @@ -459,11 +459,10 @@ static inline int pfn_to_bitidx(struct p { #ifdef CONFIG_SPARSEMEM pfn &= (PAGES_PER_SECTION-1); - return (pfn >> pageblock_order) * NR_PAGEBLOCK_BITS; #else pfn = pfn - round_down(page_zone(page)->zone_start_pfn, pageblock_nr_pages); - return (pfn >> pageblock_order) * NR_PAGEBLOCK_BITS; #endif /* CONFIG_SPARSEMEM */ + return (pfn >> pageblock_order) * NR_PAGEBLOCK_BITS; } /** _