gilles.chanteperdrix wrote: > ---------- Debut du message initial ----------- > > De : [EMAIL PROTECTED] > A : [email protected] > Copies : > Date : Mon, 25 Sep 2006 12:44:02 +0200 > Objet : Re: [Adeos-main] [PATCH+HACK] optimise root stalling > >> Jan Kiszka wrote: >>> ... >>> A further idea of mine was to inline light-weight parts of the >>> __ipipe_*_root API on UP (no SMP at hand to judge on it as > well). >> BTW: I haven't looked at any detail yet, but would PER_CPU > here and >> there (e.g. for ipipe_percpu_domain) buy us something on SMP > (2.6)? > > I think to remember that the PER_CPU support uses > smp_processor_id(), > and we know that smp_processor_id() must not be used over Xenomai > stacks. >
Not necessarily: per_cpu(var, cpu) retrieves a variable for the given cpu without touching smp_processor_id.
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