Re: [tip:core/ipi] generic-ipi: eliminate spuriouspointlessWARN_ON()s

[Peter Zijlstra]

On Fri, 2009-03-20 at 16:40 -0700, Eric W. Biederman wrote:
> It doesn't look like read==2 works properly because it does not log any
> locks grabbed underneath the reader lock.  Is that deliberate?  It certainly
> does not seem to be correct.

You're right, it doesn't work correctly. One of the patches in that heap
I pointed you at tries to fix it, but gets it wrong.
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