From: Peter Zijlstra <peterz@infradead.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Darren Hart <dvhltc@us.ibm.com>,
linux-kernel@vger.kernel.org, Ingo Molnar <mingo@elte.hu>,
Eric Dumazet <eric.dumazet@gmail.com>,
"Peter W. Morreale" <pmorreale@novell.com>,
Rik van Riel <riel@redhat.com>,
Steven Rostedt <rostedt@goodmis.org>,
Gregory Haskins <ghaskins@novell.com>,
Sven-Thorsten Dietrich <sdietrich@novell.com>,
Chris Mason <chris.mason@oracle.com>,
John Cooper <john.cooper@third-harmonic.com>,
Chris Wright <chrisw@sous-sol.org>,
Ulrich Drepper <drepper@gmail.com>,
Alan Cox <alan@lxorguk.ukuu.org.uk>, Avi Kivity <avi@redhat.com>
Subject: Re: [PATCH 4/4] futex: Add FUTEX_LOCK with optional adaptive spinning
Date: Fri, 07 May 2010 18:24:51 +0200 [thread overview]
Message-ID: <1273249491.1642.360.camel@laptop> (raw)
In-Reply-To: <alpine.LFD.2.00.1005071818380.3401@localhost.localdomain>
On Fri, 2010-05-07 at 18:20 +0200, Thomas Gleixner wrote:
> + if (!owner->oncpu)
can't do that, that relies on __ARCH_WANT_UNLOCKED_CTXSW
Please keep the code as near mutex_spin_on_owner() as possible.
next prev parent reply other threads:[~2010-05-07 16:25 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-06 6:24 [PATCH V6 0/4][RFC] futex: FUTEX_LOCK with optional adaptive spinning Darren Hart
2010-05-06 6:24 ` [PATCH 1/4] futex: replace fshared and clockrt with combined flags Darren Hart
2010-05-06 6:24 ` [PATCH 2/4] futex: add futex_q static initializer Darren Hart
2010-05-06 6:24 ` [PATCH 3/4] futex: refactor futex_lock_pi_atomic Darren Hart
2010-05-06 6:24 ` [PATCH 4/4] futex: Add FUTEX_LOCK with optional adaptive spinning Darren Hart
2010-05-07 16:20 ` Thomas Gleixner
2010-05-07 16:24 ` Peter Zijlstra [this message]
2010-05-07 16:30 ` Thomas Gleixner
2010-05-07 16:35 ` Peter Zijlstra
2010-05-07 16:43 ` Thomas Gleixner
2010-05-07 19:05 ` Darren Hart
2010-05-07 16:52 ` Darren Hart
2010-05-07 19:11 ` Darren Hart
-- strict thread matches above, loose matches on Subject: below --
2010-04-09 5:15 [PATCH V5 0/4][RFC] futex: " dvhltc
2010-04-09 5:15 ` [PATCH 4/4] futex: Add " dvhltc
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