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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS autolearn=unavailable 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 68C56C43381 for ; Tue, 26 Mar 2019 17:57:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3EFA52087C for ; Tue, 26 Mar 2019 17:57:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="BWhgh3XB" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732328AbfCZR5r (ORCPT ); Tue, 26 Mar 2019 13:57:47 -0400 Received: from mail-pf1-f195.google.com ([209.85.210.195]:44387 "EHLO mail-pf1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731761AbfCZR5r (ORCPT ); Tue, 26 Mar 2019 13:57:47 -0400 Received: by mail-pf1-f195.google.com with SMTP id y13so2299201pfm.11; Tue, 26 Mar 2019 10:57:46 -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=uIMzZO448XjjTawJjM9yVh4huNStHeJLMhciG92y8OE=; b=BWhgh3XBCNVNaFRTkEGTmzqoLVYq9yPKUVIseY03oge4ov6pyFJSBDkCwQ8AA9lyIr XcdBZvZvGOl/tDFaXbfljwh7rruEpJOOtyNmsqvEgWXhKJY0s6drIUl9qRSfECJz5sM/ aOUp9R12/hwRcJrZkP2tiw6O/U/FBfoY2UT72S/Fz2m8Rn+s7i6lGZuvaFVxAXGJNboI nkWh1ikuDbtPdmo+0HRrRMwpXBd0mH+ZRF4HCURIx+qWgHnAT09MBVk9OPT+uMj1dfYp K5imcLlNISLSYjqkkhBSMgbpTJwMH+T/hDHiWAXIpR9EQSkdrT8iGsXvATH54cfQQiss R7OQ== 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=uIMzZO448XjjTawJjM9yVh4huNStHeJLMhciG92y8OE=; b=VDr3kfhlm6uZDTU2c4SgTiWifBWK+CFWuvzfKdxtQM1mjPJqYPfu3RYcLEGItIFXDg bWIVWJn273J6hAJ7NkY+6XSIfZjHpH25ReNmw9Am/ug7m9m+cgiz2NVvhHSo1fQj7HiJ Wq6AfK1JECoIFf7ezUu1albBX+FG03Ry8inYQ1j4tCQnzjumwuS8/4j/hdDyg4MjNKcY Ltl8/ItjWPSXNbcvOQA2Q5jHQpWJAWXIJBlk8RJ3yi/OsXVrGmJiJ5CIUId8Jd1v+2d4 jj/2NbiW1kRQ2DWvLNm2RPPxcBktif0IrimYl+KlnNPbGK6xjD8nV4OAgtHUrv9cKf2n QDsQ== X-Gm-Message-State: APjAAAUjlTkHTHvJatR/BJ8os99RwGYyxM5SQHtfrclqva53ZmvWHJPG MLIMckep64C62U/77ZchdIULj47O X-Google-Smtp-Source: APXvYqwCLwttCvmaVZOo3x5lqWoIGIeMJkVWNK+TOKbks626/797wt6ZkhBGQROMcP+j5rvRz3+qvA== X-Received: by 2002:a63:ad4b:: with SMTP id y11mr16453978pgo.405.1553623066085; Tue, 26 Mar 2019 10:57:46 -0700 (PDT) Received: from ?IPv6:2601:282:800:fd80:68e1:6a44:f6ee:46a4? ([2601:282:800:fd80:68e1:6a44:f6ee:46a4]) by smtp.googlemail.com with ESMTPSA id v15sm10324267pff.105.2019.03.26.10.57.43 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 26 Mar 2019 10:57:44 -0700 (PDT) Subject: Re: [RFC 4/4] net/ipv4/fib: Don't synchronise_rcu() every 512Kb To: Dmitry Safonov , linux-kernel@vger.kernel.org Cc: Alexander Duyck , Alexey Kuznetsov , "David S. Miller" , Eric Dumazet , Hideaki YOSHIFUJI , Ido Schimmel , netdev@vger.kernel.org References: <20190326153026.24493-1-dima@arista.com> <20190326153026.24493-5-dima@arista.com> <2f911647-f35f-13c2-8177-2fb93147b0fa@gmail.com> From: David Ahern Message-ID: Date: Tue, 26 Mar 2019 11:57:42 -0600 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On 3/26/19 11:15 AM, Dmitry Safonov wrote: > I still wonder if it's good to expose it to userspace rather than > shrinker, but this probably should work for me - I'll test it in near days. I did not know about the shrinker, so can not comment if it is better or not. If so, my patch can always be reverted since it was just applied.