Eric W. Biederman af4b8a83ad pidns: Wait in zap_pid_ns_processes until pid_ns->nr_hashed == 1
Looking at pid_ns->nr_hashed is a bit simpler and it works for
disjoint process trees that an unshare or a join of a pid_namespace
may create.

Acked-by: "Serge E. Hallyn" <serge@hallyn.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2012-11-19 05:59:12 -08:00
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