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=-18.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_IN_DEF_DKIM_WL 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 D9FC7C4361B for ; Fri, 11 Dec 2020 15:05:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8E18022581 for ; Fri, 11 Dec 2020 15:05:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2405747AbgLKOiM (ORCPT ); Fri, 11 Dec 2020 09:38:12 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45880 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732507AbgLKOht (ORCPT ); Fri, 11 Dec 2020 09:37:49 -0500 Received: from mail-il1-x143.google.com (mail-il1-x143.google.com [IPv6:2607:f8b0:4864:20::143]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DB3A3C0613CF for ; Fri, 11 Dec 2020 06:37:05 -0800 (PST) Received: by mail-il1-x143.google.com with SMTP id 2so8964243ilg.9 for ; Fri, 11 Dec 2020 06:37:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=gJlHhFY7YpGSb/NWgpsHkRiym//oc/n7oGp6xC0++YI=; b=ATt6n2xzRSCOBPYNJqnfDPSM1w4dkDEyGpz0yU3WQaPHQ36ZuuiOgYy+6B1QSHYSMy RN7ABuPhtbt6d2A28l20fAe+to7TJeiI62SH0imBVhoY6/MENzMuX0Dmyp4vL3LujZa3 vreiQVmlFgK9/2Iefib9XM/v4uGWXKeihehkvxaNkRk54q6j8LtDeTrmgbn6hF1m7UfW pKE8uexzTVU4NHqlD4os1Okz57gjFQGeDZ/R11DDvOAvPiHbGUooxzCWzAzt1dkzOeV5 2O8FsY8bUvj6xKhoUc5t/Gloa4oepDTfkGsn9ko+8eJ6r/Zfxx4sVfrBP24K5SKHxFcj z1iA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=gJlHhFY7YpGSb/NWgpsHkRiym//oc/n7oGp6xC0++YI=; b=KvCPO3J9zpUwSgbM/wI0JiXhMSkbU8t1ZAd1aFz/gf1TfntDjSoevDjsaxK4prYj5e 9n/S6jueaKdQUr31nLUYWqG/jM1XipnSjNBQkNXrCswvSRXq8/5H+GDYNW4ER3sXhhOb AMCGdqRBy+0JocqDY6J7VjwFSuAPrMhS9QbytjSsQOLsy+kb8QWm6iBAFpJMV7ee5fCK IEJya51ew50IJStYgm8fzXz+Gx36uBU+TK0VYMnjlKCos764XAczZtd3FLzQTtcCxjCY HimNbyDUWbgTTq5f3WmnTQN8sh8ws1az4vrACQHNlETGqZogUP1j8GA+nxejO7sIMpRa Bb5g== X-Gm-Message-State: AOAM533atmchN+Ql2ploEmkjdQxyC0cYURbe9rUxETuv9+HmpRJLp8lb xyK0cPltnli25wh6ztEnc6koh5JnnsXxs5nI3cIxGQ== X-Google-Smtp-Source: ABdhPJx4GDSLnE6X++8HaLygIbU7GOWkPLUEzAx6L7q7vDvDs7fa7NOTg9AzBA5eFeY1//1BiEyEqUEd2Wv5v7CuQYY= X-Received: by 2002:a92:d0ca:: with SMTP id y10mr16813330ila.68.1607697424987; Fri, 11 Dec 2020 06:37:04 -0800 (PST) MIME-Version: 1.0 References: <20201211112405.31158-1-sjpark@amazon.com> In-Reply-To: <20201211112405.31158-1-sjpark@amazon.com> From: Eric Dumazet Date: Fri, 11 Dec 2020 15:36:53 +0100 Message-ID: Subject: Re: [PATCH v4] net/ipv4/inet_fragment: Batch fqdir destroy works To: SeongJae Park Cc: David Miller , SeongJae Park , Jakub Kicinski , Alexey Kuznetsov , Florian Westphal , "Paul E. McKenney" , netdev , rcu@vger.kernel.org, LKML Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Dec 11, 2020 at 12:24 PM SeongJae Park wrote: > > From: SeongJae Park > > On a few of our systems, I found frequent 'unshare(CLONE_NEWNET)' calls > make the number of active slab objects including 'sock_inode_cache' type > rapidly and continuously increase. As a result, memory pressure occurs. > > Signed-off-by: SeongJae Park > --- > Reviewed-by: Eric Dumazet Jakub or David might change the patch title, no need to resend. Thanks for this nice improvement.