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    SubjectRe: [RFC][v8][PATCH 9/10]: Define clone3() syscall
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    Peter,

    On Thu, Oct 22, 2009 at 1:38 PM, H. Peter Anvin <hpa@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
    decision? ;-)

    Cheers,

    Michael

    --
    Michael Kerrisk
    Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
    Author of "The Linux Programming Interface" http://blog.man7.org/


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