Re: asm/uaccess.h reimplementation, patch. [was: Re: 2.1 kernel bloat revisited]
Paul Gortmaker (paul@rasty.anu.edu.au)
Mon, 31 Mar 1997 00:24:31 +1000 (EST)
>
>
> On Mon, 31 Mar 1997, Paul Gortmaker wrote:
>
> > Just to see what access_ok() was responsible for (in terms of size)
> > I built two identical kernels with access_ok() defined to zero in one
> > of them. The sizes were as follows:
> >
> > ------------------------------------------------------------------------
> > Memory: 6884k/8192k available (488k kernel code, 384k reserved, 436k data)
> >
> > Memory: 6800k/8192k available (564k kernel code, 384k reserved, 444k data)
> > ------------------------------------------------------------------------
> >
> > The config was for math-emu, wd80x3, NFS, hd, ext2, proc and serial.
> > The resulting kernel wouldn't get past the execve of init, but at least
> > I got the above Mem line out of it. :)
>
> #define it 1 and you get past that line too ;)
Kick me for being stupid. I was thinking old verify_area return values.
Which of course explains why the execve didn't float too well. :)
Paul.