Re: [PATCH RFC 1/3] Add a trigger API for efficient non-blocking waiting

[Rusty Russell]

On Thursday 21 August 2008 05:25:46 Andrew Morton wrote:
> If stop_machine() is the _only_ problematic callsite and we reasonably
> expect that no new ones will pop up then sure, a
> stop_machine()-specific fix might be appropriate.
>
> Otherwise, sure, we'd need to loko at something more general.

The reason I'm interested is that we have 331 cpu_relax() calls outside the 
arch trees.  That seems like a lot, and I wonder if what they really want is
a spinpletion.

Cheers,
Rusty.
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