On 07/24, Christian Brauner wrote: > > +SYSCALL_DEFINE6(pidfd_wait, int, pidfd, int __user *, stat_addr, > + siginfo_t __user *, info, struct rusage __user *, ru, > + unsigned int, states, unsigned int, flags) > +{ Oh, I too think that P_PIDFD makes more sense. and could you explain in the changelog why? I am not arguing and if nothing else this is consistent with other pidfd features, but if you are parent/debugger you can't hit the problem with pid-reuse, unless you races with your sub-threads. Oleg.