Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759285Ab2FFXHh (ORCPT ); Wed, 6 Jun 2012 19:07:37 -0400 Received: from relay.ihostexchange.net ([66.46.182.58]:49661 "EHLO relay.ihostexchange.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759093Ab2FFXHf convert rfc822-to-8bit (ORCPT ); Wed, 6 Jun 2012 19:07:35 -0400 From: "Shai Fultheim (Shai@ScaleMP.com)" To: Ido Yariv CC: Peter Zijlstra , "mingo@kernel.org" , "hpa@zytor.com" , "linux-kernel@vger.kernel.org" , "torvalds@linux-foundation.org" , "akpm@linux-foundation.org" , "tglx@linutronix.de" , "linux-tip-commits@vger.kernel.org" Date: Wed, 6 Jun 2012 19:07:33 -0400 Subject: RE: [tip:x86/mm] x86/pat: Avoid contention on cpa_lock if possible Thread-Topic: [tip:x86/mm] x86/pat: Avoid contention on cpa_lock if possible Thread-Index: Ac1EOO/COCClpbhgRhKQHLeXHBnS9AAAAzAQ Message-ID: <9B14D1490DDECA4E974F6B9FC9EBAB317EEFC74FE5@VMBX108.ihostexchange.net> References: <1334873492-31255-1-git-send-email-ido@wizery.com> <1339003443.23343.6.camel@twins> <9B14D1490DDECA4E974F6B9FC9EBAB317EEFC74FD0@VMBX108.ihostexchange.net> <20120606230544.GA25288@WorkStation.localnet> In-Reply-To: <20120606230544.GA25288@WorkStation.localnet> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 8BIT MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 705 Lines: 17 Ido Yariv [mailto:ido@wizery.com] wrote: > The synthetic CPUID bit approach has the advantage of setting this bit > from the platform initialization code independently (in this case, in > vsmp_64.c) instead of calling platform specific functions from > pageattr.c (such as is_vsmp_box()) or exporting the static_key variable. > > We'll give this a shot and send a revised patch after testing it. > > Sounds good? I can support that. Let's get this ready. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/