Re: [this_cpu_xx V8 11/16] Generic support for this_cpu_cmpxchg

[Christoph Lameter]

On Tue, 5 Jan 2010, Mathieu Desnoyers wrote:

> This scheme where Steven moves buffers from one CPU to another, he only
> performs this operation when some other exclusion mechanism ensures that
> the buffer is not used for writing by the CPU when this move operation
> is done.
>
> It is therefore correct, and needs local_t type to deal with the data
> structure hierarchy vs atomic exchange as I pointed in my email.

Yes this_cpu_xx does not seem to work for your scheme. Please review the
patchset that I sent you instead.

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