On Wed, Nov 21, 2018 at 12:14:44PM -0800, Daniel Colascione wrote: > This change adds a per-pid-namespace 64-bit generation number, > incremented on PID rollover, and exposes it via a new proc file > /proc/pid_generation. By examining this file before and after /proc > enumeration, user code can detect the potential reuse of a PID and > restart the task enumeration process, repeating until it gets a > coherent snapshot. > > PID rollover ought to be rare, so in practice, scan repetitions will > be rare. Then why does it need to be 64-bit?
