On Tue, 29 Sep 2009, Arjan van de Ven wrote:
> >
> > We already have a syscall layer which is painful to thunk in places,
> > and this would make it much worse.
>
> syscalls are cheap as well.
> cheaper than decades of dealing with such multiplexer mess ;/
Well, I'd agree, except the clone flags really _are_ about multiplexer
issues, and the new flag woudln't really change anything.
If the new system call actually had appreciably separate code-paths, I'd
buy the "multiplexer" argument. But it doesn't really. It's going to call
down to the same basic clone functionality, and the core clone code ends
up de-multiplexing the cases anyway.
So this would not at all be like the socket calls (to pick the traditional
Linux system call multiplexing example) in that sense.
Linus
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