Messages in this thread | | | Date | Thu, 8 Feb 2024 15:06:10 +0100 | From | Oleg Nesterov <> | Subject | Re: [PATCH] pidfd: change pidfd_send_signal() to respect PIDFD_THREAD |
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On 02/08, Christian Brauner wrote: > > I would also suggest we update the obsolete comment on top of > pidfd_send_signal() along the lines of:
Yes, but...
> + * If the @pidfd refers to a thread-group leader the signal is thread-group > + * directed. If @pidfd referes to a thread then the signal is thread directed.
No, this depends on PIDFD_THREAD only.
If it is set then the signal is always "thread directed" even if @pidfd refers to a thread-group leader.
Otherwise the target task must be a group leader and the signal will be "thread-group directed".
Right?
Oleg.
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