Re: [uClinux-dev] Kernel 2.6 size increase - get_current()?

From: Bernardo Innocenti (bernie@develer.com)
Date: Wed Jul 23 2003 - 18:00:00 EST

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On Thursday 24 July 2003 00:37, Alan Cox wrote:

> On Mer, 2003-07-23 at 23:35, Bernardo Innocenti wrote:
> > It's a sequence of 6 instructions, 18 bytes long, clobbering 4 registers.
> > The compiler cannot see around it.
> > This takes 18*11 = 198 bytes just for invoking the 'current'
> > macro so many times.
>
> Unless you support SMP I'm not sure I understand why m68k nommu changed
> from using a global for current_task ?

The people who might know best are Greg and David from SnapGear.
I'm appending them to the Cc list.

But I noticed that most archs in 2.6 do like this. Is it some kind
of flock-effect? Things get changed in i386 and all other archs
just follow... :-)

-- // Bernardo Innocenti - Develer S.r.l., R&D dept. \X/ http://www.develer.com/

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