Re: remove cpu hotplug bustification in cpufreq.

[Andrew Morton]

On Sat, 22 Jul 2006 18:15:32 -0700 (PDT)
Linus Torvalds <torvalds@xxxxxxxx> wrote:

> 
> 
> On Sat, 22 Jul 2006, Andrew Morton wrote:
> > 
> > It was just wrong in conception.  We should not and probably cannot fix it.
> > Let's just delete it all, then implement version 2.
> 
> Well, I just got Ashok's trial patches which turns the thing into a rwsem 
> as I outlined earlier.

Mark my words ;)

> I'll try them out. If they don't work, we should just delete the lock and 
> go totally back to square 1.

rwsem conversion has the potential to merely hide the problem.  Ingo, does
lockdep detect recursive down_read()?
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