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    SubjectRe: [RESEND][RFC PATCH v2] waitfd
    On Thu, Jan 8, 2009 at 9:53 AM, Roland McGrath <roland@redhat.com> wrote:
    > New syscall should have gone to linux-api, I think.

    Yes, precisely. This requirement has been documented in
    SubmittingPatches for several months now. More details here:
    http://thread.gmane.org/gmane.linux.ltp/5658

    Casey, *please* don't submit a patch for a system call without also
    providing a test program, and some attempt at userspace documentation.
    (Andi already pointed this out. From my POV, I don't need you to
    write a full blown man page -- if you send me the text, I'll do the
    *roff stuff. But that text should accompany the patch that implements
    the syscall.)

    Cheers,

    Michael

    >
    > Do we really need another one for this? How about using signalfd plus
    > setting the child's exit_signal to a queuing (SIGRTMIN+n) signal instead of
    > SIGCHLD? It's slightly more magical for the userland process to know to do
    > that (fork -> clone SIGRTMIN). But compared to adding a syscall we don't
    > really have to add, maybe better.
    >
    >
    > Thanks,
    > Roland
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    --
    Michael Kerrisk Linux man-pages maintainer;
    http://www.kernel.org/doc/man-pages/ Found a documentation bug?
    http://www.kernel.org/doc/man-pages/reporting_bugs.html


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