Re: [PATCH] take 2 of the tr-based current

Richard B. Johnson
2001-11-09T16:02:05Z

On Fri, 9 Nov 2001, Manfred Spraul wrote:

> "David S. Miller" wrote:
> >
> > From: Manfred Spraul <manfred@colorfullife.com>
> > Date: Fri, 09 Nov 2001 15:54:03 +0100
> >
[SNIPPED...]

> smp_processor_id() is definitively not const.
>
> OTHO 'current' is const.
> --

Not as far as the compiler is concerned! You don't want the compiler
to generate code that reads 'current' once upon startup, and never
again. Further, you don't want that pointer to exist in .rodata, you
want it with the changable variables in .data or .bss .

Cheers,
Dick Johnson

Penguin : Linux version 2.4.1 on an i686 machine (799.53 BogoMips).

I was going to compile a list of innovations that could be
attributed to Microsoft. Once I realized that Ctrl-Alt-Del
was handled in the BIOS, I found that there aren't any.