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Date: Fri, 15 Mar 2002 17:12:16 -0800
From: george anzinger <george@mvista.com>
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To: Joel Becker <jlbec@evilplan.org>
CC: Hubertus Franke <frankeh@watson.ibm.com>,
        Rusty Russell <rusty@rustcorp.com.au>, matthew@hairy.beasts.org,
        linux-kernel@vger.kernel.org, lse-tech@lists.sourceforge.net
Subject: Re: [Lse-tech] Re: [PATCH] Re: futex and timeouts
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Joel Becker wrote:
> 
> On Fri, Mar 15, 2002 at 01:59:38PM -0500, Hubertus Franke wrote:
> > > > What I would like to see is an interface that lets me pass optional
> > > > parameters to the syscall interface, so I can call with different number
> > > > of parameters.
> > >
> > >     Is this to lock multiple futexes "atomically"?  If we are
> > > looking for a fast path stack-wise, this seems extra work.
> >
> > No, take for example...
> >
> > syscall3(int,futex,int,op, struct futex*, futex, int opt_arg);
> 
I don't think there is anything "broken" in defining more than one
syscall stub to the same system call, each with a different parameter
count (or completely different arguments).  The call code will need to
be able to figure it out, but there is nothing in the way as far as
doing it.

-g

> --
> 
> Life's Little Instruction Book #347
> 
>         "Never waste the oppourtunity to tell someone you love them."
> 
>                         http://www.jlbec.org/
>                         jlbec@evilplan.org
> 
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-- 
George           george@mvista.com
High-res-timers: http://sourceforge.net/projects/high-res-timers/
Real time sched: http://sourceforge.net/projects/rtsched/