[PATCH v2 2/3] mutex: add support for reservation style locks, v2

[Peter Zijlstra]

On Thu, 2013-04-04 at 15:31 +0200, Daniel Vetter wrote:
> Another big reason for having a start/end marker like you've describe
> is
> lockdep support.

Yeah, I saw how you did that.. but there's other ways of making it work
too, you could for instance create a new validation state for this type
of lock.

That said, I didn't consider lockdep too much, I first want the regular
semantics clear.