Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4E074C636CC for ; Fri, 17 Feb 2023 00:04:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230175AbjBQAEB (ORCPT ); Thu, 16 Feb 2023 19:04:01 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36314 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229448AbjBQAD6 (ORCPT ); Thu, 16 Feb 2023 19:03:58 -0500 Received: from smtp-relay-canonical-0.canonical.com (smtp-relay-canonical-0.canonical.com [185.125.188.120]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AFA3634F7F; Thu, 16 Feb 2023 16:03:57 -0800 (PST) Received: from [192.168.192.83] (unknown [50.47.134.245]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by smtp-relay-canonical-0.canonical.com (Postfix) with ESMTPSA id 113ED3F34A; Fri, 17 Feb 2023 00:03:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canonical.com; s=20210705; t=1676592236; bh=ZgACcAfuVvB1nCcOUfv5nq99sIZJmik7xqG2SXKk2/Y=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=uuvUwD+FaXVo/b4D/YrlQUXiUUwj/K3b7ZbWNjxF8//rhJpcIV1Ji5EbAU8koQzCF HO1pGqlVznRRpjwwqaykPv0130Zsi54222wMyVopJhP7rHQhYZ4b7Zr1UaWIkmTI71 HEk8q/IPRpnNrCTWGtkyuVMHu0ObHeHeiWpdmxZtjHCWYA5v65RmXPc0a3OpKT6OEO LWyGRO24PfKzlpQ7Afp+0kQGopA29pSDErsgZlzxA5gUC978CHkUZ5f+YPAhoNSgEl NjRM1shqTWQ4F9S4xZclKTgkH1tsJJ/8qv1Wp1uk9BZF932Cxk22yjJLOVv+tI9ZR7 nR//p0xtFr+xA== Message-ID: <7a1fc8f6-f87d-b001-a4b3-8b160ed2c691@canonical.com> Date: Thu, 16 Feb 2023 16:03:52 -0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.7.1 Subject: Re: apparmor: global buffers spin lock may get contended Content-Language: en-US To: Sergey Senozhatsky Cc: Sebastian Andrzej Siewior , Peter Zijlstra , Tomasz Figa , linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org References: From: John Johansen Organization: Canonical In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I have sent up a new version of this patch that caps a situation where buffer lists could grow unbounded (at theoretically).