Re: Porting vfork()
Linus Torvalds (torvalds@transmeta.com)
Fri, 8 Jan 1999 13:09:46 -0800 (PST)
On Fri, 8 Jan 1999, Perry Harrington wrote:
> >
> > Hmm... I do wonder about what happens to signals while vfork() is blocking
> > the parent, though. Ick. The parent invoking signal handlers isn't much
> > better then the child invoking signal handlers. One longjmp(), and
> > everything gets confused. Temporarily block all signals to the parent but
> > SIGKILL? Perhaps the only solution. And how does the child cleanly release
> > the wait_queue in its parent if its parent may have been killed in the
> > meantime?
>
> That's a good question, do you want to temporarily block signals to the parent?
No need to. If you use sleep_on(), the parent won't be getting any signals
anyway (only sleep_on_interruptible() cares about signals).
Linus
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