Sukadev Bhattiprolu <sukadev at us.ibm.com> writes: > I am trying to understand the diff between task_session() and > task->signal-session and why we have the two notions of session. > Are we just phasing out one of them ? Yes. > In general each process has a single session id. The only exception > being a process that unshares its pid ns. Such process will have > exactly two session ids, one for each pid ns. No ? Each process has a single session. That session can potentially have a different session id in each pid namespace. So for internal tests we want to compare the struct pid pointers instead of the numbers visible to user space. Eric
