From patchwork Fri Jan 31 06:14:10 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Morton X-Patchwork-Id: 11359233 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0C29A139A for ; Fri, 31 Jan 2020 06:14:15 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id C38702467B for ; Fri, 31 Jan 2020 06:14:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="u9slzzuM" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C38702467B 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 2667A6B052B; Fri, 31 Jan 2020 01:14:13 -0500 (EST) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id 1A00B6B052D; Fri, 31 Jan 2020 01:14:13 -0500 (EST) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id F312B6B052E; Fri, 31 Jan 2020 01:14:12 -0500 (EST) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0012.hostedemail.com [216.40.44.12]) by kanga.kvack.org (Postfix) with ESMTP id D15E86B052B for ; Fri, 31 Jan 2020 01:14:12 -0500 (EST) Received: from smtpin06.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 96FE53A91 for ; Fri, 31 Jan 2020 06:14:12 +0000 (UTC) X-FDA: 76436914344.06.match25_24b82634f6b10 X-Spam-Summary: 2,0,0,b6de9e80bdbce220,d41d8cd98f00b204,akpm@linux-foundation.org,:akpm@linux-foundation.org:alex.shi@linux.alibaba.com:cai@lca.pw::mm-commits@vger.kernel.org:torvalds@linux-foundation.org,RULES_HIT:41:69:355:379:800:960:967:968:973:988:989:1260:1263:1345:1359:1381:1431:1437:1534:1541:1711:1730:1747:1777:1792:2393:2525:2559:2563:2682:2685:2859:2902:2933:2937:2939:2942:2945:2947:2951:2954:3022:3138:3139:3140:3141:3142:3352:3867:3870:3934:3936:3938:3941:3944:3947:3950:3953:3956:3959:4321:5007:6261:6653:7576:9025:9545:9592:10004:10913:11026:11473:11658:11914:12043:12048:12114:12296:12297:12438:12517:12519:12555:12679:12783:12986:13069:13311:13357:14181:14384:14721:14777:14849:21060:21080:21433:21451:21627:21819:21939:30054,0,RBL:error,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fp,MSBL:0,DNSBL:neutral,Custom_rules:0:0:0,LFtime:25,LUA_SUMMARY:none X-HE-Tag: match25_24b82634f6b10 X-Filterd-Recvd-Size: 2532 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf47.hostedemail.com (Postfix) with ESMTP for ; Fri, 31 Jan 2020 06:14:12 +0000 (UTC) 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 656A4206A2; Fri, 31 Jan 2020 06:14:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1580451251; bh=wStYe0DOGYX7aCO2KS/JO6cBnsKwCW5KTYEa22E30iI=; h=Date:From:To:Subject:In-Reply-To:From; b=u9slzzuMDF20hkX2a0tLrcnyJIJHVWxN+8HgDvsQa+JHQozBELFcJ6wNNSmZfVm56 37zAzoskejlDq4LGnHD6b5FBCUcfOZmJq4cXFV/D9WvWGcBThA3ieRwyd89B0P5Ynw BIn1Y8GDVp2s345aBdVSQFU9uVTXX2GzcziZSnSs= Date: Thu, 30 Jan 2020 22:14:10 -0800 From: Andrew Morton To: akpm@linux-foundation.org, alex.shi@linux.alibaba.com, cai@lca.pw, linux-mm@kvack.org, mm-commits@vger.kernel.org, torvalds@linux-foundation.org Subject: [patch 056/118] mm/vmscan: remove prefetch_prev_lru_page Message-ID: <20200131061410.BD4iJ_kKY%akpm@linux-foundation.org> In-Reply-To: <20200130221021.5f0211c56346d5485af07923@linux-foundation.org> User-Agent: s-nail v14.8.16 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000003, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Alex Shi Subject: mm/vmscan: remove prefetch_prev_lru_page This macro was never used in git history. So better to remove. Link: http://lkml.kernel.org/r/1579006500-127143-1-git-send-email-alex.shi@linux.alibaba.com Signed-off-by: Alex Shi Reviewed-by: Andrew Morton Cc: Qian Cai Signed-off-by: Andrew Morton --- mm/vmscan.c | 14 -------------- 1 file changed, 14 deletions(-) --- a/mm/vmscan.c~mm-vmscan-remove-prefetch_prev_lru_page +++ a/mm/vmscan.c @@ -146,20 +146,6 @@ struct scan_control { struct reclaim_state reclaim_state; }; -#ifdef ARCH_HAS_PREFETCH -#define prefetch_prev_lru_page(_page, _base, _field) \ - do { \ - if ((_page)->lru.prev != _base) { \ - struct page *prev; \ - \ - prev = lru_to_page(&(_page->lru)); \ - prefetch(&prev->_field); \ - } \ - } while (0) -#else -#define prefetch_prev_lru_page(_page, _base, _field) do { } while (0) -#endif - #ifdef ARCH_HAS_PREFETCHW #define prefetchw_prev_lru_page(_page, _base, _field) \ do { \