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=-7.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 47CE3C2D0E4 for ; Sat, 21 Nov 2020 03:32:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 11B5E2237B for ; Sat, 21 Nov 2020 03:32:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="oZejvN00" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727181AbgKUDcH (ORCPT ); Fri, 20 Nov 2020 22:32:07 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40840 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726189AbgKUDcF (ORCPT ); Fri, 20 Nov 2020 22:32:05 -0500 Received: from merlin.infradead.org (merlin.infradead.org [IPv6:2001:8b0:10b:1231::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 77D77C0613CF for ; Fri, 20 Nov 2020 19:32:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=Content-Transfer-Encoding:Content-Type: In-Reply-To:MIME-Version:Date:Message-ID:From:References:Cc:To:Subject:Sender :Reply-To:Content-ID:Content-Description; bh=TpVpQQfZRxzUgrkLaW1LRIBqXiIdLLw8aooTmtrs9Fc=; b=oZejvN00kyZFbSTskSGk6TDJj6 sPhi7xULrvjxk8UElbyKpMAE6PWz0Ct9S8/f4c6ip7EnTy2rKwvjFl/8LaovdnFlyZflmbCBwyIHr C6WRa1nWoDDMFHho56wqxCeoI1Jiu9bK1OjmaVEXSIulJHcVmT1A2VycZJYwjACM4OtVoZd8aoDtc ZpFnSzF6WzaCYemZsqwo7XIxRfbPp0sB/43Lr8by3fujT2IlxoAp1K2dOg0duYqlDBUGvPmtCWctJ q/7wLL46heQdZh+3xNKjM4CgoilOOUurl1xXM+uRimVxCbCvFSV8uxhV304kKlV3Rljpx42u2I7rL Op0Qq58g==; Received: from [2601:1c0:6280:3f0::bcc4] by merlin.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kgJcz-0001wa-VZ; Sat, 21 Nov 2020 03:31:58 +0000 Subject: Re: [PATCH v3 4/4] Documentation/admin-guide: Change doc for split_lock_detect parameter To: Fenghua Yu , Thomas Gleixner , Borislav Petkov , Ingo Molnar , Peter Zijlstra , Tony Luck , Xiaoyao Li , Ravi V Shankar Cc: linux-kernel , x86 References: <20201121023624.3604415-1-fenghua.yu@intel.com> <20201121023624.3604415-5-fenghua.yu@intel.com> From: Randy Dunlap Message-ID: Date: Fri, 20 Nov 2020 19:31:52 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 MIME-Version: 1.0 In-Reply-To: <20201121023624.3604415-5-fenghua.yu@intel.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi-- On 11/20/20 6:36 PM, Fenghua Yu wrote: > + ratelimit:N - > + Set rate limit to N bus locks per second > + for bus lock detection. 0 < N <= HZ/2 and > + N is approximate. Only applied to non-root > + users. Sorry, but I don't know what this means. I think it's the "and N is appropriate" that is confusing me. 0 < N <= HZ/2 and N is appropriate. -- ~Randy