Provided by: systemtap-doc_3.1-3ubuntu0.1_all 

NAME
function::task_ns_pid - The process identifier of the task
SYNOPSIS
task_ns_pid:long(task:long)
ARGUMENTS
task task_struct pointer
DESCRIPTION
This function returns the process id of the given task based on the specified pid namespace..
SEE ALSO
tapset::task(3stap)