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[2620:137:e000::1:20]) by mx.google.com with ESMTP id lr8-20020a17090b4b8800b00202df4f0895si772200pjb.108.2022.09.13.18.19.04; Tue, 13 Sep 2022 18:19:17 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20210112 header.b=C5y+wEAt; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229639AbiINAqd (ORCPT + 99 others); Tue, 13 Sep 2022 20:46:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43008 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229487AbiINAqb (ORCPT ); Tue, 13 Sep 2022 20:46:31 -0400 Received: from mail-yw1-x112d.google.com (mail-yw1-x112d.google.com [IPv6:2607:f8b0:4864:20::112d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 95507543CD; Tue, 13 Sep 2022 17:46:28 -0700 (PDT) Received: by mail-yw1-x112d.google.com with SMTP id 00721157ae682-3321c2a8d4cso161115707b3.5; Tue, 13 Sep 2022 17:46:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:from:to:cc:subject:date; bh=ssjNpU+UnxocbCpKK/CIlUpi0g+9BuJEk9fqXvf4AYo=; b=C5y+wEAtXvYoj9pZEXzozjeDzYsFxx/JVHiDyxJUihyC+IYwvaj1lPt3JyI9wv3RCR a0wiv9Sc2EXbGZ1Xyaq3sH1XbQuJgv5Eje82wAHyCTIiHPYfYvsCP7C43EvM2FyhuiTH 0dR+br2dA+KFEfpx6ZAS1IoFEAi++n6lKY3f06uQjnFhDJBNQjs3ipt7Ja3MCKhGxaUV 6rJSyXCOIQXg6hEv/+qK5SOIiIScmWFXQQTL+9rho5nzovCAUjpKOX/T3y6L2mxssXg+ TQvlzw703c3tklBE5vhCEv25vHHxisStux8MrCNlYPrCSwgcNU1fpYuKilgkkTNBcp12 kL+A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:x-gm-message-state:from:to:cc :subject:date; bh=ssjNpU+UnxocbCpKK/CIlUpi0g+9BuJEk9fqXvf4AYo=; b=X8c8tkLJMvEopFWwehQLkDqer9bRAPoL1rAx/Mwb8dtfaWE6jsUgB09Zyvt+ZvDbZZ xhoD7HQlLrtknRwmQ9vRpkHlpLKIUMxSbj2BYci+NBTfCVtXl3rbY25T4EtL2wd2gtS5 UPJyRhLshYC9WtdFPlfYXalmjprUdDJtQraHv9U8ZyJNpACAtSfuslY/x/xaPCOVQ6Zh TMRJKK5ZnbVvfZwpWmhXuRZh2nn38WtaS3Y4ZBRRzvxB0eusdX5vPksxePikG0yJnFjb lQqPF+ABvFtw4y98KmFDcNyy5F6JOuqyK/S6r1qLskyZoZPpU+Uz8ZuCrBV8jjGkT9bA Uf+g== X-Gm-Message-State: ACgBeo04CeAIxzRZhoRjBA07S2iNLE7D1ZsguKffEguFuIscKDVWEDx4 D30PSf3lwDgfgQn2BixFbaSJRTxJKKA/4xNxp0rkd87Cbe68+iTkLj8= X-Received: by 2002:a81:7756:0:b0:328:2dde:3336 with SMTP id s83-20020a817756000000b003282dde3336mr29336073ywc.81.1663116387853; Tue, 13 Sep 2022 17:46:27 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: yong w Date: Wed, 14 Sep 2022 08:46:15 +0800 Message-ID: Subject: Re: [PATCH v4] page_alloc: consider highatomic reserve in watermark fast To: Greg KH Cc: jaewon31.kim@samsung.com, mhocko@kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, wang.yong12@zte.com.cn Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Greg KH =E4=BA=8E2022=E5=B9=B49=E6=9C=8813=E6= =97=A5=E5=91=A8=E4=BA=8C 21:54=E5=86=99=E9=81=93=EF=BC=9A > > On Tue, Sep 13, 2022 at 09:09:47PM +0800, yong wrote: > > Hello, > > This patch is required to be patched in linux-5.4.y and linux-4.19.y. > > What is "this patch"? There is no context here :( > Sorry, I forgot to quote the original patch. the patch is as follows f27ce0e page_alloc: consider highatomic reserve in watermark fast > > In addition to that, the following two patches are somewhat related: > > > > 3334a45 mm/page_alloc: use ac->high_zoneidx for classzone_idx > > 9282012 page_alloc: fix invalid watermark check on a negative val= ue > > In what way? What should be done here by us? > I think these two patches should also be merged. The classzone_idx parameter is used in the zone_watermark_fast functionzone, and 3334a45 use ac->high_zoneidx for classzone_idx. "9282012 page_alloc: fix invalid watermark check on a negative value" fix f27ce0e introduced issues > confused, > > greg k-h