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=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 C0697ECDFB1 for ; Tue, 17 Jul 2018 14:55:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 872352086E for ; Tue, 17 Jul 2018 14:55:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 872352086E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=zytor.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731871AbeGQP2P (ORCPT ); Tue, 17 Jul 2018 11:28:15 -0400 Received: from terminus.zytor.com ([198.137.202.136]:53767 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731617AbeGQP2P (ORCPT ); Tue, 17 Jul 2018 11:28:15 -0400 Received: from terminus.zytor.com (localhost [127.0.0.1]) by terminus.zytor.com (8.15.2/8.15.2) with ESMTPS id w6HEsqEc1549491 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Tue, 17 Jul 2018 07:54:52 -0700 Received: (from tipbot@localhost) by terminus.zytor.com (8.15.2/8.15.2/Submit) id w6HEsqN31549488; Tue, 17 Jul 2018 07:54:52 -0700 Date: Tue, 17 Jul 2018 07:54:52 -0700 X-Authentication-Warning: terminus.zytor.com: tipbot set sender to tipbot@zytor.com using -f From: tip-bot for Dewet Thibaut Message-ID: Cc: bp@suse.de, tony.luck@intel.com, linux-kernel@vger.kernel.org, linux-edac@vger.kernel.org, mingo@kernel.org, tglx@linutronix.de, thibaut.dewet@nokia.com, alexander.sverdlin@nokia.com, hpa@zytor.com Reply-To: tglx@linutronix.de, bp@suse.de, tony.luck@intel.com, linux-kernel@vger.kernel.org, mingo@kernel.org, linux-edac@vger.kernel.org, thibaut.dewet@nokia.com, alexander.sverdlin@nokia.com, hpa@zytor.com In-Reply-To: <20180716084927.24869-1-alexander.sverdlin@nokia.com> References: <20180716084927.24869-1-alexander.sverdlin@nokia.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:x86/urgent] x86/MCE: Remove min interval polling limitation Git-Commit-ID: fd4054b31af283af9ec44895e561bbb3449ad81d X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: fd4054b31af283af9ec44895e561bbb3449ad81d Gitweb: https://git.kernel.org/tip/fd4054b31af283af9ec44895e561bbb3449ad81d Author: Dewet Thibaut AuthorDate: Mon, 16 Jul 2018 10:49:27 +0200 Committer: Thomas Gleixner CommitDate: Tue, 17 Jul 2018 16:50:17 +0200 x86/MCE: Remove min interval polling limitation commit b3b7c4795c ("x86/MCE: Serialize sysfs changes") introduced a min interval limitation when setting the check interval for polled MCEs. However, the logic is that 0 disables polling for corrected MCEs, see Documentation/x86/x86_64/machinecheck. The limitation prevents disabling. Remove this limitation and allow the value 0 to disable polling again. Fixes: b3b7c4795c ("x86/MCE: Serialize sysfs changes") Signed-off-by: Dewet Thibaut Signed-off-by: Alexander Sverdlin [ Massage commit message. ] Signed-off-by: Borislav Petkov Cc: Tony Luck Cc: linux-edac Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/20180716084927.24869-1-alexander.sverdlin@nokia.com --- arch/x86/kernel/cpu/mcheck/mce.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index c102ad51025e..8c50754c09c1 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -2165,9 +2165,6 @@ static ssize_t store_int_with_restart(struct device *s, if (check_interval == old_check_interval) return ret; - if (check_interval < 1) - check_interval = 1; - mutex_lock(&mce_sysfs_mutex); mce_restart(); mutex_unlock(&mce_sysfs_mutex);