From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760604AbZCaOdo (ORCPT ); Tue, 31 Mar 2009 10:33:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759477AbZCaOda (ORCPT ); Tue, 31 Mar 2009 10:33:30 -0400 Received: from mga01.intel.com ([192.55.52.88]:11071 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758979AbZCaOd3 (ORCPT ); Tue, 31 Mar 2009 10:33:29 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.38,453,1233561600"; d="scan'208";a="677497616" Date: Tue, 31 Mar 2009 15:44:01 +0200 From: Markus Metzger To: linux-kernel@vger.kernel.org, mingo@elte.hu, tglx@linutronix.de, hpa@zytor.com Cc: markus.t.metzger@intel.com, markus.t.metzger@gmail.com, roland@redhat.com, eranian@googlemail.com, oleg@redhat.com, juan.villacis@intel.com, ak@linux.jf.intel.com Subject: [patch 19/21] x86, ds: don't use TIF_DEBUGCTLMSR Message-ID: <20090331154401.A13522@sedona.ch.intel.com> Mime-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.2.5i Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Debug store already uses TIF_DS_AREA_MSR to trigger debug store context switch handling. No need to use TIF_DEBUGCTLMSR, as well. Signed-off-by: Markus Metzger --- Index: git-tip/arch/x86/kernel/ds.c =================================================================== --- git-tip.orig/arch/x86/kernel/ds.c 2009-03-30 19:14:51.000000000 +0200 +++ git-tip/arch/x86/kernel/ds.c 2009-03-30 19:26:02.000000000 +0200 @@ -956,11 +956,6 @@ static void update_task_debugctlmsr(stru get_cpu(); if (task == current) update_debugctlmsr(debugctlmsr); - - if (task->thread.debugctlmsr) - set_tsk_thread_flag(task, TIF_DEBUGCTLMSR); - else - clear_tsk_thread_flag(task, TIF_DEBUGCTLMSR); put_cpu(); } --------------------------------------------------------------------- Intel GmbH Dornacher Strasse 1 85622 Feldkirchen/Muenchen Germany Sitz der Gesellschaft: Feldkirchen bei Muenchen Geschaeftsfuehrer: Douglas Lusk, Peter Gleissner, Hannes Schwaderer Registergericht: Muenchen HRB 47456 Ust.-IdNr. VAT Registration No.: DE129385895 Citibank Frankfurt (BLZ 502 109 00) 600119052 This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies.