From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pb0-f52.google.com (mail-pb0-f52.google.com [209.85.160.52]) by kanga.kvack.org (Postfix) with ESMTP id 66A1D6B0092 for ; Tue, 5 Nov 2013 16:14:20 -0500 (EST) Received: by mail-pb0-f52.google.com with SMTP id rr4so1536763pbb.39 for ; Tue, 05 Nov 2013 13:14:19 -0800 (PST) Received: from psmtp.com ([74.125.245.124]) by mx.google.com with SMTP id it5si14745176pbc.5.2013.11.05.13.14.17 for ; Tue, 05 Nov 2013 13:14:18 -0800 (PST) Received: by mail-qe0-f45.google.com with SMTP id 8so5428250qea.18 for ; Tue, 05 Nov 2013 13:14:16 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <1383673346.11046.276.camel@schen9-DESK> References: <1383673346.11046.276.camel@schen9-DESK> Date: Tue, 5 Nov 2013 13:14:16 -0800 Message-ID: Subject: Re: [PATCH v2 0/4] MCS Lock: MCS lock code cleanup and optimizations From: Michel Lespinasse Content-Type: text/plain; charset=ISO-8859-1 Sender: owner-linux-mm@kvack.org List-ID: To: Tim Chen 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, 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 ? -- Michel "Walken" Lespinasse A program is never fully debugged until the last user dies. -- 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