On Thu, Oct 22, 2009 at 02:14:16PM +0200, Michael Kerrisk wrote:
> Peter,
>
> On Thu, Oct 22, 2009 at 1:38 PM, H. Peter Anvin <h...@zytor.com> wrote:
> > On 10/22/2009 07:26 PM, Michael Kerrisk wrote:
> >>>
> >>> "3" is number of arguments.
> >>
> >> sys_clone3(struct clone_struct __user *ucs, pid_t __user *pids)
> >>
> >> It appears to me that the number of arguments is 2.
> >>
> >
> > It was 3 at one point... I'm not sure when that changed last :-/
> >
> >>> It's better than "extended" or something like
> >>> that simply because "extended" just means "more than", and a number at
> >>> least
> >>> tells you *how much more than*.
> >>
> >> I'm not sure why you think including a number in the name tells us
> >> "how much more than". Unless you are considering the numbering to be
> >> version numbers, which apparently is not what you mean.
> >
> > It is a version number of sorts.
>
> So, sometimes, a number in a system call should be the bit width of
> some arguments(s), sometimes it should be the number of arguments, and
> sometimes (well, just occasionally, as in mmap2() and clone()) -- it
> should be a version number? Does the weather play any part in the
In this case 3 could be both the number of arguments and the version
number (clone, clone2, clone3). Match 2 conventions with one choice of
name. :)
Cheers,
-Matt Helsley
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