From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Zijlstra Subject: Re: [PATCH v9 05/19] qspinlock: Optimize for smaller NR_CPUS Date: Fri, 18 Apr 2014 21:05:19 +0200 Message-ID: <20140418190519.GA11182@twins.programming.kicks-ass.net> References: <1397747051-15401-1-git-send-email-Waiman.Long@hp.com> <1397747051-15401-6-git-send-email-Waiman.Long@hp.com> <20140417155649.GR11096@twins.programming.kicks-ass.net> <53504BB3.4010009@hp.com> <20140418082716.GZ11096@twins.programming.kicks-ass.net> <53516672.3010701@hp.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <53516672.3010701@hp.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: Waiman Long Cc: linux-arch@vger.kernel.org, Rik van Riel , Raghavendra K T , Gleb Natapov , kvm@vger.kernel.org, Konrad Rzeszutek Wilk , Scott J Norton , x86@kernel.org, Paolo Bonzini , linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, Ingo Molnar , Chegu Vinod , David Vrabel , "H. Peter Anvin" , xen-devel@lists.xenproject.org, Thomas Gleixner , "Paul E. McKenney" , Linus Torvalds , Oleg Nesterov List-Id: linux-arch.vger.kernel.org On Fri, Apr 18, 2014 at 01:52:50PM -0400, Waiman Long wrote: > I am confused by your notation. Nah, I think I was confused :-) Make the 1 _Q_LOCKED_VAL though, as that's the proper constant to use. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from merlin.infradead.org ([205.233.59.134]:59612 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754470AbaDRTFo (ORCPT ); Fri, 18 Apr 2014 15:05:44 -0400 Date: Fri, 18 Apr 2014 21:05:19 +0200 From: Peter Zijlstra Subject: Re: [PATCH v9 05/19] qspinlock: Optimize for smaller NR_CPUS Message-ID: <20140418190519.GA11182@twins.programming.kicks-ass.net> References: <1397747051-15401-1-git-send-email-Waiman.Long@hp.com> <1397747051-15401-6-git-send-email-Waiman.Long@hp.com> <20140417155649.GR11096@twins.programming.kicks-ass.net> <53504BB3.4010009@hp.com> <20140418082716.GZ11096@twins.programming.kicks-ass.net> <53516672.3010701@hp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <53516672.3010701@hp.com> Sender: linux-arch-owner@vger.kernel.org List-ID: To: Waiman Long Cc: Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , linux-arch@vger.kernel.org, x86@kernel.org, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, xen-devel@lists.xenproject.org, kvm@vger.kernel.org, Paolo Bonzini , Konrad Rzeszutek Wilk , "Paul E. McKenney" , Rik van Riel , Linus Torvalds , Raghavendra K T , David Vrabel , Oleg Nesterov , Gleb Natapov , Scott J Norton , Chegu Vinod Message-ID: <20140418190519.cC0CjuaMS-LRazSuQyLGq4XCNc7tdYbl2G8TEmBWELo@z> On Fri, Apr 18, 2014 at 01:52:50PM -0400, Waiman Long wrote: > I am confused by your notation. Nah, I think I was confused :-) Make the 1 _Q_LOCKED_VAL though, as that's the proper constant to use.