Re: [cpuops cmpxchg double V2 1/4] Generic support forthis_cpu_cmpxchg_double

[Christoph Lameter]

On Fri, 21 Jan 2011, Mathieu Desnoyers wrote:

> "if the pointer passed is constant" -> if you use the actual type of percpu_dd
> to check the alignment, then you can do an alignment check at compile-time even
> for a non-const parameter. The requirement imposed on typing will take care to
> make sure that even a non-const pointer will have the proper alignment.

True that would be a benefit if we used something like percpu_dd. If
somehow we can marry that to a parameter list that only includes single
word entities then we would have the best of both.

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