Re: access_ok inside kernelspace

Horst von Brand (vonbrand@inf.utfsm.cl)
Tue, 19 Oct 1999 09:18:41 -0300

Tigran Aivazian <tigran@sco.COM> said:
> Actually, Ingo - there *is* one case where going through _syscallX() and
> therefore int 0x80 from the kernel *is* the only way. This is when the
> caller is a module. That is how I call sysfs() from BFS module.

I don't understand this. A module is linked into the running kernel, and
has access to all of it AFAIU, so I can't see any need for this contortion
for modules. Maybe I'm just plain blind today...

If it is really needed, some piece of magic should translate them to the
plain calls when they are not modules to get rid of the overhead.

-- 
Dr. Horst H. von Brand                       mailto:vonbrand@inf.utfsm.cl
Departamento de Informatica                     Fono: +56 32 654431
Universidad Tecnica Federico Santa Maria              +56 32 654239
Casilla 110-V, Valparaiso, Chile                Fax:  +56 32 797513


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