Re: [TIP][RFC 3/7] futex: futex_lock_pi_atomic()

[Darren Hart]

Peter Zijlstra wrote:

Hi Peter,

Thanks for taking a look.

> On Mon, 2009-03-02 at 16:13 -0800, Darren Hart wrote:
> > + * Returns:
> > + * - 0 on success (futex_q is setup and FUTEX_WAITERS bit is set on the futex)
> > + * - 1 on a successful atomic acquisition of the lock
> > + * - A negative error code on failure
>
> That utterly confused me for a while.

Sorry about that, guess my doc-fu needs some work.

> Maybe something like:
>
>  0 - ready to wait
>  1 - acquired the lock
>
>  <0 - error

Sure thing, I've updated the patch and my git tree:

http://git.kernel.org/?p=linux/kernel/git/dvhart/linux-2.6-tip-hacks.git;a=shortlog;h=requeue-pi-dev

Note, this is a development branch and I continuously update it, 
replacing patches, etc.


--
Darren Hart
IBM Linux Technology Center
Real-Time Linux Team
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