Re: [PATCH] mm/init: cpu_hotplug_init() must be initialized beforeSLAB

From: Pekka Enberg
Date: Tue Jun 23 2009 - 01:59:44 EST


On Tue, 23 Jun 2009, Benjamin Herrenschmidt wrote:
> > + /*
> > + * This initializes the mutex used by get/put_online_cpus()
> > + * which is used by SLAB
> > + */
> > + cpu_hotplug_init();

On Mon, 2009-06-22 at 19:29 -0700, Linus Torvalds wrote:
> Oh fudge it.
>
> Why not get rid of that stupid thing, rather than have that subtle
> dependency and a comment for it.
>
> IOW, does this simpler alternative also work?
>
> When given the choice of simplifying and removing code, always do so.
>
> Static initializers are much nicer than having to worry about when
> something gets initialized, no?

Looks good to me. Thanks for fixing it up, Linus!

Pekka

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