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=-14.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 E2B20C433E0 for ; Mon, 15 Mar 2021 15:27:17 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 50DC664E6B for ; Mon, 15 Mar 2021 15:27:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 50DC664E6B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 656616B0070; Mon, 15 Mar 2021 11:27:16 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 6043A6B0071; Mon, 15 Mar 2021 11:27:16 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4A6AA6B0072; Mon, 15 Mar 2021 11:27:16 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0109.hostedemail.com [216.40.44.109]) by kanga.kvack.org (Postfix) with ESMTP id 3033D6B0070 for ; Mon, 15 Mar 2021 11:27:16 -0400 (EDT) Received: from smtpin20.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id E63515DCD for ; Mon, 15 Mar 2021 15:27:15 +0000 (UTC) X-FDA: 77922487230.20.82F9064 Received: from mail-ot1-f50.google.com (mail-ot1-f50.google.com [209.85.210.50]) by imf15.hostedemail.com (Postfix) with ESMTP id 36022A012918 for ; Mon, 15 Mar 2021 15:14:26 +0000 (UTC) Received: by mail-ot1-f50.google.com with SMTP id m1so7048303ote.10 for ; Mon, 15 Mar 2021 08:14:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=N4xTXJC3aSsvD0Tu2z/4hlaOiEJQneTxtWXS9WYbxG8=; b=M1Ya5zZ20aqVyvZ85hmde/EHfI5AObsfSfDrA87a21Ht4oI1Zmm7fH6gB2LcmyOger q5nPekECsbI4RLwiNAbf7epVDO84pP9BILC1Cod74cIPrC4D11b9Z/XJpnlBQKDNkR1G H54YjO0tsu3nSrLroPjSz0POB6CSRemuxDjKupePjHPqZ+6qfBdKXJd4qcEnvrwRoZgQ FeBZ/6Fn5q+jBkVm9Ohigril5diIuurWSi0P3xRRda93d6oCv8kSdUj4bYDLNZToEC4f lT80xEJFVSZi8J1t9lsLAFOqJeEVkboy4N3FZ0ALelUqPjcL+K758wvqWHJz4SvxEqvh bK4w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=N4xTXJC3aSsvD0Tu2z/4hlaOiEJQneTxtWXS9WYbxG8=; b=HapmOrvE5Eyy8yGOcBTfbpoip/F8mYB7OyozGlOriZIVUxyc7Yt3qC2lcYjd+l/2jv lksuzRGX90Q8QLLttofrFpWD5qpxExxhDkZw0tPxeG2IVKWjw1wTJaauxtYzd3VK1AKF fjfZH5TMFjT1o6jIC8NFr0BOh5lnuDr4BmfGbYKtNg9BpOskwHO7LLglLKVRdarJ8fsy k/p2NxzdGcJnK2omes8vxbV4H6c5QbT0zT1XXFCbvdCwLoL/KNnUA5D98N79NSiyFCdN o9a4p+OvYGT500zRRqmu2alBK5IV3cMwNw4YtL/+2SHyjHEy6jgLifvv/vA6xBhCVvpj 4Fbw== X-Gm-Message-State: AOAM531Wxh7m0JHcQFNMGDCaP8eDeWB23HSpE0CWoAqob6h89ndKkPIC NSW6DBDYbA0PDmxa48xqV3E= X-Google-Smtp-Source: ABdhPJz27WDfwQZmf6OhzuUEXGbDVVeVx0+IVOUN4j1Vc+BB1xQ9kMFUSo5/6C+DADDHXNjSFh+RqA== X-Received: by 2002:a9d:2f65:: with SMTP id h92mr14748322otb.327.1615821265396; Mon, 15 Mar 2021 08:14:25 -0700 (PDT) Received: from Davids-MacBook-Pro.local ([8.48.134.56]) by smtp.googlemail.com with ESMTPSA id f22sm7112813otl.10.2021.03.15.08.14.24 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 15 Mar 2021 08:14:25 -0700 (PDT) Subject: Re: [PATCH v2 2/8] memcg: accounting for ip6_dst_cache To: Vasily Averin , cgroups@vger.kernel.org, Michal Hocko Cc: linux-mm@kvack.org, Johannes Weiner , Vladimir Davydov , Shakeel Butt , "David S. Miller" , Hideaki YOSHIFUJI , Jakub Kicinski , David Ahern References: <8196f732-718e-0465-a39c-62668cc12c2b@virtuozzo.com> From: David Ahern Message-ID: Date: Mon, 15 Mar 2021 09:14:23 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.16; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 MIME-Version: 1.0 In-Reply-To: <8196f732-718e-0465-a39c-62668cc12c2b@virtuozzo.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Stat-Signature: f7p681g86fbmbe6u5fjjfeuuqfggod1a X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 36022A012918 Received-SPF: none (gmail.com>: No applicable sender policy available) receiver=imf15; identity=mailfrom; envelope-from=""; helo=mail-ot1-f50.google.com; client-ip=209.85.210.50 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1615821266-5108 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 3/15/21 6:23 AM, Vasily Averin wrote: > An untrusted netadmin inside a memcg-limited container can create a > huge number of routing entries. Currently, allocated kernel objects > are not accounted to proper memcg, so this can lead to global memory > shortage on the host and cause lot of OOM kiils. > > This patches enables accounting for 'struct rt6_info' allocations. > --- > net/ipv6/route.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > Acked-by: David Ahern