* Nicolas Pitre <[email protected]> wrote:
> > Please consider using (a variant of) xchg() instead. Although
> > atomic_dec() is available on all architectures, its implementation is
> > far from being the most efficient thing to do for them all.
>
> Actually, the best thing to do is to let the architecture do what is
> the most efficient. [...]
i have already added something similar. Furthermore, i have also
eliminated the CMPXCHG requirement from MUTEX_FASTPATH, which should
open ARM up to the generic lockless fastpath. (but you can still choose
to reimplement it in the architecture) I'll send a new queue later
today.
Ingo
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