Re: out-of-line x86 "put_user()" implementation

[Pavel Machek <pavel@ucw.cz>]

Hi!

> > boots fine and shrinks the image size quite noticeably:
> > 
> >   [Nr] Name     Type        Addr     Off    Size
> >   [ 1] .text    PROGBITS    c0100000 001000 2771a9   [vmlinux-orig]
> >   [ 1] .text    PROGBITS    c0100000 001000 2742dd   [vmlinux-patched]
> > 
> > that's 11980 bytes off a 2585001 bytes .text, a 0.5% size reduction.
> > This patch we want ...
> 
> Goodie. Here's a slightly more recent version, where I cleaned up the
> assembly code (no need to save %ecx if we just update %ebx instead, which
> makes the code a bit more readable too - and doing it this way should
> hopefully make it easier for an out-of-order CPU to start the memops
> earlier too. Who knows..)
> 
> I'm not going to put this into 2.6.11, since I worry about compiler 
> interactions, but the more people who test it anyway, the better.

Put it in -mm tree :-)))
								Pavel

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