From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755065AbYGIQ4X (ORCPT ); Wed, 9 Jul 2008 12:56:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753468AbYGIQvl (ORCPT ); Wed, 9 Jul 2008 12:51:41 -0400 Received: from relay1.sgi.com ([192.48.171.29]:53195 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751913AbYGIQva (ORCPT ); Wed, 9 Jul 2008 12:51:30 -0400 Message-Id: <20080709165130.147071000@polaris-admin.engr.sgi.com> References: <20080709165129.292635000@polaris-admin.engr.sgi.com> User-Agent: quilt/0.46-1 Date: Wed, 09 Jul 2008 09:51:35 -0700 From: Mike Travis To: Jeremy Fitzhardinge Cc: Ingo Molnar , Andrew Morton , "Eric W. Biederman" , "H. Peter Anvin" , Christoph Lameter , Jack Steiner , linux-kernel@vger.kernel.org Subject: [RFC 06/15] x86_64: Replace xxx_pda() operations in include_asm-x86_current_h Content-Disposition: inline; filename=incl_pda_ops_include_asm-x86_current_h Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * It is now possible to use percpu operations for pda access since the pda is in the percpu area. Drop the pda operations. Thus: read_pda --> x86_read_percpu write_pda --> x86_write_percpu add_pda (+1) --> x86_inc_percpu or_pda --> x86_or_percpu Based on linux-2.6.tip/master Signed-off-by: Christoph Lameter Signed-off-by: Mike Travis --- include/asm-x86/current.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- linux-2.6.tip.orig/include/asm-x86/current.h 2008-07-01 10:41:33.000000000 -0700 +++ linux-2.6.tip/include/asm-x86/current.h 2008-07-01 10:49:13.764285143 -0700 @@ -17,12 +17,13 @@ static __always_inline struct task_struc #ifndef __ASSEMBLY__ #include +#include struct task_struct; static __always_inline struct task_struct *get_current(void) { - return read_pda(pcurrent); + return x86_read_percpu(pda.pcurrent); } #else /* __ASSEMBLY__ */ --