Eric W. Biederman 7a36094d61 pids: Compute task_tgid using signal->leader_pid ...

The cost is the the same and this removes the need
to worry about complications that come from de_thread
and group_leader changing.

__task_pid_nr_ns has been updated to take advantage of this change.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>

2018-07-21 10:43:12 -05:00

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