Re: [PATCH] Move GFP_KERNEL use out of line to shrink text

[Paulo Marques <pmarques@grupopie.com>]

Denis Vlasenko wrote:
> On Wednesday 14 September 2005 21:39, Roland Dreier wrote:
>
> >       text    data     bss     dec     hex filename
> >    24202272 7609162 1998512 33809946 203e61a vmlinux-before
> >    24197561 7609474 1998512 33805547 203d4eb vmlinux-after
> >
> > for a net savings of 4711 bytes of text (at a cost of 312 bytes of
> > data for some reason).  With my usual config, the patched kernel boots
> > and runs fine.
>
> FYI: "some reason" == KALLSYMS

312 bytes for a couple more symbols is too much to be justified from 
kallsyms alone.

In a 64 bit machine each new symbol should take about 8 bytes for the 
address + ~ half the size of the symbol name, which in this case would 
give at most about ~50 bytes.

I guess the rest should come from the extra EXPORT_SYMBOL's...

--
Paulo Marques - www.grupopie.com

The rule is perfect: in all matters of opinion our
adversaries are insane.
Mark Twain
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