From: Peter Zijlstra <peterz@infradead.org>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>,
Maarten Lankhorst <maarten.lankhorst@canonical.com>,
linux-arch@vger.kernel.org, x86@kernel.org,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
dri-devel <dri-devel@lists.freedesktop.org>,
"linaro-mm-sig@lists.linaro.org" <linaro-mm-sig@lists.linaro.org>,
rob clark <robclark@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
"linux-media@vger.kernel.org" <linux-media@vger.kernel.org>
Subject: Re: [PATCH v2 2/3] mutex: add support for reservation style locks, v2
Date: Wed, 10 Apr 2013 09:34:30 +0200 [thread overview]
Message-ID: <1365579270.30071.25.camel@laptop> (raw)
In-Reply-To: <20130409224223.GD20739@home.goodmis.org>
On Tue, 2013-04-09 at 18:42 -0400, Steven Rostedt wrote:
> What about setting an age as soon as it starts the process
> of grabbing one of these locks? And it keeps the age until it
> successfully grabs and releases all the locks again. It wont reset if
> it
> had to drop the locks and start over.
That is indeed the proposed mechanism. It ensures FIFO fairness between
the various threads that try to acquire a set.
next prev parent reply other threads:[~2013-04-10 7:34 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-28 10:24 [PATCH v2 1/3] arch: make __mutex_fastpath_lock_retval return whether fastpath succeeded or not Maarten Lankhorst
2013-02-28 10:25 ` [PATCH v2 2/3] mutex: add support for reservation style locks, v2 Maarten Lankhorst
2013-04-02 10:56 ` Peter Zijlstra
2013-04-02 10:57 ` Peter Zijlstra
2013-04-02 11:00 ` Peter Zijlstra
2013-04-02 14:57 ` Maarten Lankhorst
2013-04-02 16:59 ` Peter Zijlstra
2013-04-02 17:23 ` Daniel Vetter
2013-04-02 17:30 ` Daniel Vetter
2013-04-04 12:01 ` Peter Zijlstra
2013-04-04 13:31 ` Daniel Vetter
2013-04-04 16:33 ` Peter Zijlstra
2013-04-04 16:38 ` Peter Zijlstra
2013-04-04 16:59 ` Daniel Vetter
2013-04-09 22:27 ` Steven Rostedt
2013-04-10 8:27 ` Daniel Vetter
2013-04-04 16:39 ` Peter Zijlstra
2013-04-04 16:41 ` Peter Zijlstra
2013-04-09 22:28 ` Steven Rostedt
2013-04-10 9:33 ` Daniel Vetter
2013-04-17 19:08 ` Daniel Vetter
2013-04-18 17:37 ` Ville Syrjälä
2013-04-04 16:43 ` Peter Zijlstra
2013-04-04 16:46 ` Peter Zijlstra
2013-04-04 16:49 ` Peter Zijlstra
2013-04-04 20:44 ` Daniel Vetter
2013-04-04 16:54 ` Peter Zijlstra
2013-04-04 16:56 ` Daniel Vetter
2013-04-08 10:39 ` Peter Zijlstra
2013-04-08 11:50 ` Daniel Vetter
2013-04-10 10:34 ` Daniel Vetter
2013-04-09 22:42 ` Steven Rostedt
2013-04-10 7:34 ` Peter Zijlstra [this message]
2013-04-09 22:18 ` Steven Rostedt
2013-04-02 15:56 ` Daniel Vetter
2013-04-02 11:04 ` Peter Zijlstra
2013-02-28 10:25 ` [PATCH v2 3/3] reservation: Add tests to lib/locking-selftest.c. v2 Maarten Lankhorst
2013-03-09 12:06 ` [Linaro-mm-sig] [PATCH v2 1/3] arch: make __mutex_fastpath_lock_retval return whether fastpath succeeded or not Francesco Lavra
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