From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pd0-f180.google.com (mail-pd0-f180.google.com [209.85.192.180]) by kanga.kvack.org (Postfix) with ESMTP id 42CDE6B0098 for ; Tue, 5 Nov 2013 16:27:40 -0500 (EST) Received: by mail-pd0-f180.google.com with SMTP id p10so9107810pdj.39 for ; Tue, 05 Nov 2013 13:27:39 -0800 (PST) Received: from psmtp.com ([74.125.245.195]) by mx.google.com with SMTP id qj1si9263081pbc.24.2013.11.05.13.27.37 for ; Tue, 05 Nov 2013 13:27:38 -0800 (PST) Subject: Re: [PATCH v2 0/4] MCS Lock: MCS lock code cleanup and optimizations From: Tim Chen In-Reply-To: References: <1383673346.11046.276.camel@schen9-DESK> Content-Type: text/plain; charset="UTF-8" Date: Tue, 05 Nov 2013 13:27:33 -0800 Message-ID: <1383686853.11046.299.camel@schen9-DESK> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Michel Lespinasse Cc: Ingo Molnar , Andrew Morton , Thomas Gleixner , linux-kernel@vger.kernel.org, linux-mm , linux-arch@vger.kernel.org, Linus Torvalds , Waiman Long , Andrea Arcangeli , Alex Shi , Andi Kleen , Davidlohr Bueso , Matthew R Wilcox , Dave Hansen , Peter Zijlstra , Rik van Riel , Peter Hurley , "Paul E.McKenney" , Raghavendra K T , George Spelvin , "H. Peter Anvin" , Arnd Bergmann , Aswin Chandramouleeswaran , Scott J Norton , Will Deacon On Tue, 2013-11-05 at 13:14 -0800, Michel Lespinasse wrote: > On Tue, Nov 5, 2013 at 9:42 AM, Tim Chen wrote: > > In this patch series, we separated out the MCS lock code which was > > previously embedded in the mutex.c. This allows for easier reuse of > > MCS lock in other places like rwsem and qrwlock. We also did some micro > > optimizations and barrier cleanup. > > > > This patches were previously part of the rwsem optimization patch series > > but now we spearate them out. > > > > Tim Chen > > > > v2: > > 1. change export mcs_spin_lock as a GPL export symbol > > 2. corrected mcs_spin_lock to references > > > > Jason Low (2): > > MCS Lock: optimizations and extra comments > > MCS Lock: Barrier corrections > > > > Tim Chen (1): > > MCS Lock: Restructure the MCS lock defines and locking code into its > > own file > > > > Waiman Long (1): > > MCS Lock: Make mcs_spinlock.h includable in other files > > > > include/linux/mcs_spinlock.h | 99 ++++++++++++++++++++++++++++++++++++++++++ > > include/linux/mutex.h | 5 +- > > kernel/Makefile | 6 +- > > kernel/mcs_spinlock.c | 21 +++++++++ > > kernel/mutex.c | 60 +++---------------------- > > 5 files changed, 133 insertions(+), 58 deletions(-) > > create mode 100644 include/linux/mcs_spinlock.h > > create mode 100644 kernel/mcs_spinlock.c > > What base kernel does this apply over ? > Should be applicable on latest v3.12-rc7. Tim -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org