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=-0.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 C6E38C2D0F1 for ; Tue, 31 Mar 2020 15:25:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9C2D7208E0 for ; Tue, 31 Mar 2020 15:25:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chrisdown.name header.i=@chrisdown.name header.b="MX3Slhqt" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730919AbgCaPZh (ORCPT ); Tue, 31 Mar 2020 11:25:37 -0400 Received: from mail-wr1-f66.google.com ([209.85.221.66]:40196 "EHLO mail-wr1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730528AbgCaPZh (ORCPT ); Tue, 31 Mar 2020 11:25:37 -0400 Received: by mail-wr1-f66.google.com with SMTP id u10so26501751wro.7 for ; Tue, 31 Mar 2020 08:25:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chrisdown.name; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=YTzVrLlnv/U861L9j2OH30y80LBa/uThEvzXvP/gh2c=; b=MX3SlhqtOgu7+xXPL0VtCywalercn8WvcRrstjEE7UrqsuB7MOfCn54non2gPg5X59 uLet+fnVhtkcLmoWl91/g5RA8oxVdZsQT8JOjXegkF08l25QW2YHmBU2fGuolcm2oQCG THSGdBz4PAgk6GtfOmO2lXmtTDQFqofruA8cA= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=YTzVrLlnv/U861L9j2OH30y80LBa/uThEvzXvP/gh2c=; b=FVTuVoADoUrU90f60gQa7Rpi7dVkg8tckkirAomhTQadSa/ow7JeBlATrfvBNXkURk B6kFAhXuvNB0Wia7sFX90V7zkrU5lq2FSCGvXFA+i7gA8fCGJrktr/4djS5MlXQGHPDP MpqMTE5HjqOMu89Q1bs3lBPx3XWVvHnX6xWqOwS6L+64TfXqUcMezLaxNh1yNmj30B2c ZQ16gIHkfIZ2izQPxFqROu9o+bXGr6qRJH+YVCKfTgj/YmiPPLo3nmsUgG0Y+hz5vP15 1KtDGWQLTQPz2oA67GP/1pR4RYzkN8CUxj74ogulaaRsyck/3bgK0bzy5pAHg1gfaqkN pnZw== X-Gm-Message-State: ANhLgQ0zh2xM9rBRdqeHPveeMxVMCF88+7sI+sripUqayAQvM3UzpOZx kLIJ0GXiedv077QJtq7M6cdI3A== X-Google-Smtp-Source: ADFU+vtwJF1/nQQsqo4I3dRj5KZv3ZcoTKSDqx3vwC8HQz+R1N9Nja42TBa60n4K9gVoKNdsr+oLCw== X-Received: by 2002:adf:f68b:: with SMTP id v11mr20090187wrp.270.1585668335013; Tue, 31 Mar 2020 08:25:35 -0700 (PDT) Received: from localhost ([2620:10d:c092:180::1:27bd]) by smtp.gmail.com with ESMTPSA id u22sm4278976wmu.43.2020.03.31.08.25.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 31 Mar 2020 08:25:34 -0700 (PDT) Date: Tue, 31 Mar 2020 16:25:34 +0100 From: Chris Down To: Andrew Morton Cc: Johannes Weiner , Jakub Kicinski , linux-mm@kvack.org, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-team@fb.com Subject: Re: [PATCH] mm, memcg: Do not high throttle allocators based on wraparound Message-ID: <20200331152534.GA972283@chrisdown.name> References: <20200331152424.GA1019937@chrisdown.name> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <20200331152424.GA1019937@chrisdown.name> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Andrew, this is a pretty bad one that could definitely affect memory.high users. We should probably expedite it going in. Sorry for the trouble, especially on a -stable patch...