From: David Howells <dhowells@redhat.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>,
Steven Rostedt <rostedt@goodmis.org>,
Linux-Kernel List <linux-kernel@vger.kernel.org>,
linuxppc-dev list <linuxppc-dev@ozlabs.org>,
Ingo Molnar <mingo@elte.hu>
Subject: Re: spin_is_locked() broken for uniprocessor?
Date: Wed, 19 Aug 2009 10:38:06 +0100 [thread overview]
Message-ID: <7099.1250674686@redhat.com> (raw)
In-Reply-To: <alpine.LFD.2.00.0908190022570.3361@localhost.localdomain>
Thomas Gleixner <tglx@linutronix.de> wrote:
> > which implies to me that spin_is_locked() will always return false. Is this
> > expected behavior.
>
> That's wrong. spin_is_locked should always return true on UP.
Surely it's not that simple? Maybe spin_is_lock() should be undefined on UP.
David
next prev parent reply other threads:[~2009-08-19 9:38 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-18 22:09 spin_is_locked() broken for uniprocessor? Kumar Gala
2009-08-18 22:24 ` Thomas Gleixner
2009-08-19 9:38 ` David Howells [this message]
2009-08-19 9:41 ` Peter Zijlstra
2009-08-27 9:32 ` Benjamin Herrenschmidt
2009-08-19 10:53 ` Alan Cox
2009-08-19 11:16 ` Leon Woestenberg
2009-08-19 11:23 ` Peter Zijlstra
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