Re: [RFC] dynamic syscalls revisited

[H. Peter Anvin]

Steven Rostedt wrote:
> I disagree about this statement.  ioctl's suck because they usually have
> none, or very poor documentation and you are stuck with opening devices,
> and sending parameters to them that may be for the wrong device and
> there is really no good checking to see what you sent is what you want
> since its all defined by human unreadable numbers.

That's like saying you might be calling the wrong syscall by accident.

> As for dynamic system calls (and especially the way I've implemented
> them) you have human readable names, with varying amount of parameters
> that can make sense. So even if you still have none to very poor
> documentation, you can understand things perhaps a little better.  There
> is also much better checking in dynamic system calls than to ioctls.

There is NO checking in the syscall interface.  Period.  Any such 
checking is a facility of some kind of stub generator, and that's 
independent of the method used to invoke it.

	-hpa




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