Re: [PATCH 1/2] cpumask: centralize cpu_online_map andcpu_possible_map

From: Ingo Molnar
Date: Thu Nov 20 2008 - 03:22:25 EST



* Rusty Russell <rusty@xxxxxxxxxxxxxxx> wrote:

> (I'll be rinsing this through linux-next; testing feedback and even
> Acked-by's appreciated).
>
> Each SMP arch defines these themselves. Move them to a central
> location.
>
> Twists:
> 1) Some archs (m32, parisc, s390) set possible_map to all 1, so we add a
> CONFIG_INIT_ALL_POSSIBLE for this rather than break them.
>
> 2) mips and sparc32 '#define cpu_possible_map phys_cpu_present_map'.
> Those archs simply have phys_cpu_present_map replaced everywhere.
>
> 3) Alpha defined cpu_possible_map to cpu_present_map; this is tricky
> so I just manipulate them both in sync.
>
> 4) IA64, cris and m32r have gratuitous 'extern cpumask_t cpu_possible_map'
> declarations.
>
> Signed-off-by: Rusty Russell <rusty@xxxxxxxxxxxxxxx>

Nice cleanup - my earlier acked-by for this concept still stands:

Acked-by: Ingo Molnar <mingo@xxxxxxx>

Ingo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/