Re: Add prefetch switch stack hook in scheduler function

david mosberger
2005-07-27T23:23:37Z

Also, should this be called prefetch_stack() or perhaps even just
prefetch_task()? Not every architecture defines a switch_stack
structure.

--david

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On 7/27/05, Andrew Morton <akpm@osdl.org> wrote:
> "Chen, Kenneth W" <kenneth.w.chen@intel.com> wrote:
> >
> > +#ifdef ARCH_HAS_PREFETCH_SWITCH_STACK
> > +extern void prefetch_switch_stack(struct task_struct*);
> > +#else
> > +#define prefetch_switch_stack(task) do { } while (0)
> > +#endif
>
> It is better to use
>
> static inline void prefetch_switch_stack(struct task_struct *t) { }
>
> in the second case, rather than a macro. It provides typechecking.
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