Messages in this thread | | | Date | Tue, 29 Sep 2009 12:10:50 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: [RFC][v7][PATCH 8/9]: Define clone2() syscall |
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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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