Re: [patch] compress the stack layout of do_page_fault(), x86

From: Andi Kleen
Date: Sun Jul 10 2005 - 11:16:15 EST


On Sat, Jul 09, 2005 at 09:42:20PM +0200, Ingo Molnar wrote:
>
> * Andi Kleen <ak@xxxxxxx> wrote:
>
> > Ingo Molnar <mingo@xxxxxxx> writes:
> > >
> > > +static void force_sig_info_fault(int si_signo, int si_code,
> > > + unsigned long address, struct task_struct *tsk)
> >
> > This won't work with a unit-at-a-time compiler which happily inlines
> > everything static with only a single caller. Use noinline
>
> this function has two callers.

Even then it's still better to mark it noinline, otherwise
a different inlining algorithm in a new compiler might do the wrong
thing. It's also useful documentation.

-Andi
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