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    SubjectRe: [patch] new sys_tkill2() system call, 2.5.70

    On Tue, 3 Jun 2003, Ingo Molnar wrote:
    >
    > are you suggesting to extend sys_tgkill() functionality to also detect -1
    > for the PID, and do a process-signal send?

    I don't care much, but that zero special case is definitely not a good
    idea.

    You might make the thing acceptable to me by just removing the "zero means
    everythign", and replacing that logic with

    if (!tgid)
    tgid = current->tgid;

    which is similar to how we handle zeroes in some other places. In other
    words, a zero is not a "wildcard", it means "_this_ thread group".

    Linus

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