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=-7.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 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 4D336C433EF for ; Tue, 14 Sep 2021 03:11:02 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id CB84A61212 for ; Tue, 14 Sep 2021 03:11:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org CB84A61212 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id 71380900002; Mon, 13 Sep 2021 23:11:01 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 6C3656B0071; Mon, 13 Sep 2021 23:11:01 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 58C59900002; Mon, 13 Sep 2021 23:11:01 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0062.hostedemail.com [216.40.44.62]) by kanga.kvack.org (Postfix) with ESMTP id 493476B006C for ; Mon, 13 Sep 2021 23:11:01 -0400 (EDT) Received: from smtpin06.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 06A352A482 for ; Tue, 14 Sep 2021 03:11:01 +0000 (UTC) X-FDA: 78584702322.06.2E70BCA Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by imf15.hostedemail.com (Postfix) with ESMTP id 5BAE7D000096 for ; Tue, 14 Sep 2021 03:11:00 +0000 (UTC) Received: from dggeme703-chm.china.huawei.com (unknown [172.30.72.55]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4H7pCw2k2qzbmT6; Tue, 14 Sep 2021 11:06:52 +0800 (CST) Received: from [10.174.177.76] (10.174.177.76) by dggeme703-chm.china.huawei.com (10.1.199.99) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.8; Tue, 14 Sep 2021 11:10:57 +0800 Subject: Re: [PATCH v2] mm/page_isolation: fix potential missing call to unset_migratetype_isolate() To: Andrew Morton , Michal Hocko CC: David Hildenbrand , , , References: <20210913115125.33617-1-linmiaohe@huawei.com> <6cb372ff-0b68-2143-913e-04ab3e6b4160@huawei.com> <20210913195113.b13142630a5401e8abacc13e@linux-foundation.org> From: Miaohe Lin Message-ID: Date: Tue, 14 Sep 2021 11:10:56 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.6.0 MIME-Version: 1.0 In-Reply-To: <20210913195113.b13142630a5401e8abacc13e@linux-foundation.org> Content-Type: text/plain; charset="utf-8" Content-Language: en-US Content-Transfer-Encoding: 7bit X-Originating-IP: [10.174.177.76] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To dggeme703-chm.china.huawei.com (10.1.199.99) X-CFilter-Loop: Reflected X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 5BAE7D000096 X-Stat-Signature: e4q56t67g643i9ns193pzhu5mcm9k8oz Authentication-Results: imf15.hostedemail.com; dkim=none; spf=pass (imf15.hostedemail.com: domain of linmiaohe@huawei.com designates 45.249.212.187 as permitted sender) smtp.mailfrom=linmiaohe@huawei.com; dmarc=pass (policy=none) header.from=huawei.com X-HE-Tag: 1631589060-274010 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: On 2021/9/14 10:51, Andrew Morton wrote: > On Mon, 13 Sep 2021 14:59:42 +0200 Michal Hocko wrote: > >> I do realize that the stable tree is in a hoarding mode for quite some >> years but my general approach has been (in line with the documentation) >> to mark and backport only fixes that really do matter. > > Me2. There has to be some risk-vs-reward test to be passed... Will keep this in mind when I try to cc stable. Thanks. > . >