Re: [tip:locking/core] rwsem: Add comments to explain the meaning of the rwsem's count field

[Davidlohr Bueso <davidlohr@xxxxxx>]

On Mon, 2014-05-05 at 15:51 -0700, Tim Chen wrote:
> On Mon, 2014-05-05 at 20:27 +0200, Ingo Molnar wrote:
> 
> > > Ingo,
> > > 
> > > The delta patch is included below.  Thinking a bit more,
> > > the state diagram approach is not necessarily less verbose
> > > because the state is a tuple (count, wait queue state).
> > > After enumerating the states, we may wind up with very similar
> > > to what I have.
> > 
> > Could we at least try with one diagram and see how it goes?
> > 
> 
> I've tried (see below).  But I don't like how it came out :(

And quite nice, thanks for doing this. Personally, however, I much
prefer the already applied patch to this approach.

Thanks,
Davidlohr

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