Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753398AbbESRZP (ORCPT ); Tue, 19 May 2015 13:25:15 -0400 Received: from smtp2.provo.novell.com ([137.65.250.81]:34821 "EHLO smtp2.provo.novell.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751787AbbESRZM (ORCPT ); Tue, 19 May 2015 13:25:12 -0400 From: Davidlohr Bueso To: Thomas Gleixner , Peter Zijlstra , Ingo Molnar Cc: Steven Rostedt , Mike Galbraith , "Paul E. McKenney" , Sebastian Andrzej Siewior , Davidlohr Bueso , linux-kernel@vger.kernel.org Subject: [PATCH -tip 0/4] rtmutex: Spin on owner Date: Tue, 19 May 2015 10:24:54 -0700 Message-Id: <1432056298-18738-1-git-send-email-dave@stgolabs.net> X-Mailer: git-send-email 2.1.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1172 Lines: 34 Hello, First three patches are straightforward and found while going through the code. Patch 4 is the actual meat of the set, but similar to what we have already in regular mutexes. While having optimistic spinning in rtmutexes is a desired feature, I've marked it RFC as I could very well have missed something inherint in the rt flavor. Details in the individual patches. Passes pi tests from Darren's futextest suite as well as all weekend running pi_stress from rt-tests on a 60 core box. Thanks! Davidlohr Bueso (4): locking/rtmutex: Implement lockless top-waiter wakeup locking/rtmutex: Use cmp-cmpxchg locking/rtmutex: Update stale plist comments locking/rtmutex: Support spin on owner (osq) include/linux/rtmutex.h | 4 ++ kernel/Kconfig.locks | 4 ++ kernel/locking/rtmutex.c | 175 +++++++++++++++++++++++++++++++++++++++++------ 3 files changed, 162 insertions(+), 21 deletions(-) -- 2.1.4 -- 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/