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 6BB2FC4361B for ; Tue, 15 Dec 2020 03:15:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2B15F223E0 for ; Tue, 15 Dec 2020 03:15:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726619AbgLODPQ (ORCPT ); Mon, 14 Dec 2020 22:15:16 -0500 Received: from mail.kernel.org ([198.145.29.99]:36830 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727558AbgLODMy (ORCPT ); Mon, 14 Dec 2020 22:12:54 -0500 Date: Mon, 14 Dec 2020 19:11:45 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1608001906; bh=3RFDvv86usBIA4vkJx/E9cHf2f4ncmK3DX1az5cUfQc=; h=From:To:Subject:In-Reply-To:From; b=Tw7gNzqGi72nbqXA2KZ65M79sowsJEMh6mB90IlfrrpFlTCvb/QX5bKJy0egm066i p7q5w6b+naYkAU/wiUbybDpjO/Frhn0rKuAz6gwJjYMD+x9jWmRVwYgG9bjeqxPiaU wvJY/ZUtni4C8nP5BUEtATsWZwQ19JhCnwRVVEOU= From: Andrew Morton To: akpm@linux-foundation.org, linux-mm@kvack.org, mm-commits@vger.kernel.org, naoya.horiguchi@nec.com, osalvador@suse.de, qcai@redhat.com, torvalds@linux-foundation.org, vbabka@suse.cz Subject: [patch 143/200] mm,hwpoison: remove drain_all_pages from shake_page Message-ID: <20201215031145.gnGYH2Pe3%akpm@linux-foundation.org> In-Reply-To: <20201214190237.a17b70ae14f129e2dca3d204@linux-foundation.org> User-Agent: s-nail v14.8.16 Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org From: Oscar Salvador Subject: mm,hwpoison: remove drain_all_pages from shake_page get_hwpoison_page already drains pcplists, previously disabling them when trying to grab a refcount. We do not need shake_page to take care of it anymore. Link: https://lkml.kernel.org/r/20201204102558.31607-4-osalvador@suse.de Signed-off-by: Oscar Salvador Acked-by: Naoya Horiguchi Cc: Qian Cai Cc: Vlastimil Babka Signed-off-by: Andrew Morton --- mm/memory-failure.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) --- a/mm/memory-failure.c~mmhwpoison-remove-drain_all_pages-from-shake_page +++ a/mm/memory-failure.c @@ -263,8 +263,8 @@ static int kill_proc(struct to_kill *tk, } /* - * When a unknown page type is encountered drain as many buffers as possible - * in the hope to turn the page into a LRU or free page, which we can handle. + * Unknown page type encountered. Try to check whether it can turn PageLRU by + * lru_add_drain_all, or a free page by reclaiming slabs when possible. */ void shake_page(struct page *p, int access) { @@ -273,9 +273,6 @@ void shake_page(struct page *p, int acce if (!PageSlab(p)) { lru_add_drain_all(); - if (PageLRU(p)) - return; - drain_all_pages(page_zone(p)); if (PageLRU(p) || is_free_buddy_page(p)) return; } _