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=-5.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,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 B3EE6C2D0E4 for ; Sun, 15 Nov 2020 20:05:10 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 3263F22409 for ; Sun, 15 Nov 2020 20:05:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="GYAiWZNt" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3263F22409 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=oracle.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 673F36B0036; Sun, 15 Nov 2020 15:05:09 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 5FE3A6B005D; Sun, 15 Nov 2020 15:05:09 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4C5A16B0068; Sun, 15 Nov 2020 15:05:09 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0233.hostedemail.com [216.40.44.233]) by kanga.kvack.org (Postfix) with ESMTP id 1D23E6B0036 for ; Sun, 15 Nov 2020 15:05:09 -0500 (EST) Received: from smtpin16.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id AFE4F3622 for ; Sun, 15 Nov 2020 20:05:08 +0000 (UTC) X-FDA: 77487731496.16.snake90_0e123ac27323 Received: from filter.hostedemail.com (10.5.16.251.rfc1918.com [10.5.16.251]) by smtpin16.hostedemail.com (Postfix) with ESMTP id 8FF15100E690C for ; Sun, 15 Nov 2020 20:05:08 +0000 (UTC) X-HE-Tag: snake90_0e123ac27323 X-Filterd-Recvd-Size: 4128 Received: from aserp2120.oracle.com (aserp2120.oracle.com [141.146.126.78]) by imf12.hostedemail.com (Postfix) with ESMTP for ; Sun, 15 Nov 2020 20:05:07 +0000 (UTC) Received: from pps.filterd (aserp2120.oracle.com [127.0.0.1]) by aserp2120.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 0AFK43b1047047; Sun, 15 Nov 2020 20:04:54 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=subject : to : cc : references : from : message-id : date : mime-version : in-reply-to : content-type : content-transfer-encoding; s=corp-2020-01-29; bh=bmoZX8u1q0Upqf5t/0ploFSERTNgOdg02qf028mJeBE=; b=GYAiWZNttqNOK74hRQEBF7OE4rozOOgldgLTTDIo28kZ/Kg/QGT9lbiHi2Hp/9kg3afv JUHHg4SlP6hJp1T9Lt4vZclaGcbgveOqVG82SD21zQc0PPQteswcIX/kddfm7YTyUE9w vJZ1KZ2GgQWAtC7kcJ+luVT4B6fVsKTcDunpwGXpz6fXoP7SiyQfAEtr/mxtJqDIhBo4 1Dq/ixPrErNz6KYjcIfZW94tYw6GkyCutXEW8bn47s0P15cmA33VUl/e6Wc7ezJc9AXc kjcKFPL0AmajHcO6oBz2E075MU5dYrXoFeJrYOOeBPYQHJ7Tc1TOjcjTNAo2R0auzVCx 3g== Received: from aserp3030.oracle.com (aserp3030.oracle.com [141.146.126.71]) by aserp2120.oracle.com with ESMTP id 34t76kjqr8-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Sun, 15 Nov 2020 20:04:54 +0000 Received: from pps.filterd (aserp3030.oracle.com [127.0.0.1]) by aserp3030.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 0AFJxTsN048469; Sun, 15 Nov 2020 20:04:54 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by aserp3030.oracle.com with ESMTP id 34trtjwg5f-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sun, 15 Nov 2020 20:04:54 +0000 Received: from abhmp0012.oracle.com (abhmp0012.oracle.com [141.146.116.18]) by userv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 0AFK4nlU032208; Sun, 15 Nov 2020 20:04:49 GMT Received: from [10.159.225.239] (/10.159.225.239) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Sun, 15 Nov 2020 12:04:49 -0800 Subject: Re: [PATCH v2 1/1] page_frag: Recover from memory pressure To: Matthew Wilcox Cc: linux-mm@kvack.org, netdev@vger.kernel.org, aruna.ramakrishna@oracle.com, bert.barbe@oracle.com, rama.nichanamatlu@oracle.com, venkat.x.venkatsubra@oracle.com, manjunath.b.patil@oracle.com, joe.jin@oracle.com, srinivas.eeda@oracle.com, stable@vger.kernel.org, linux-kernel@vger.kernel.org, akpm@linux-foundation.org, davem@davemloft.net, edumazet@google.com, vbabka@suse.cz References: <20201115065106.10244-1-dongli.zhang@oracle.com> <20201115121828.GQ17076@casper.infradead.org> From: Dongli Zhang Message-ID: Date: Sun, 15 Nov 2020 12:04:47 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20201115121828.GQ17076@casper.infradead.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9806 signatures=668682 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 adultscore=0 suspectscore=0 mlxscore=0 bulkscore=0 malwarescore=0 spamscore=0 mlxlogscore=911 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2011150129 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9806 signatures=668682 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 phishscore=0 adultscore=0 priorityscore=1501 bulkscore=0 clxscore=1015 mlxlogscore=925 malwarescore=0 mlxscore=0 spamscore=0 lowpriorityscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2011150129 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000001, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 11/15/20 4:18 AM, Matthew Wilcox wrote: > On Sat, Nov 14, 2020 at 10:51:06PM -0800, Dongli Zhang wrote: >> + if (nc->pfmemalloc) { > > You missed the unlikely() change that Eric recommended. > Thank you very much. I missed that email. I will send v3. Dongli Zhang