Re: [PATCH 4/5] pidfd: add CLONE_WAIT_PID
From: Oleg Nesterov
Date: Thu Jul 25 2019 - 14:08:07 EST
On 07/25, Christian Brauner wrote:
> The key is that you want to be able to create child processes in a
> shared library without the main programing having to know about this so
> that it can use P_ALL and never get stuff from the library.
in this case you should probablu pass 0 in CSIGNAL to ensure that the main
program won't be notified when that child exits.