New system calls: pidfd_open() and close_range()

Posted May 26, 2019 0:13 UTC (Sun) by Cyberax (✭ supporter ✭, #52523)
In reply to: New system calls: pidfd_open() and close_range() by quotemstr
Parent article: New system calls: pidfd_open() and close_range()

Scanning /proc/self is not at all free or fast. You'll need to do a bunch of kernel-userspace transitions instead of one syscall.