790aa264bc
In containers like docker, current->pid returns current process's global PID instead of its own PID under containers's PID namespace, and get_net_ns_by_pid() suppose to accept a virtual PID under its own namespace, so we should use task_pid_vnr(current) to get current process's virtual PID instead of current->pid. Signed-off-by: Wenfeng Liu <liuwf@arraynetworks.com.cn> Acked-by: Helin Zhang <helin.zhang@intel.com>