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

NAME
function::task_ns_tid - The thread identifier of the task as seen in a namespace
SYNOPSIS
task_ns_tid:long(task:long)
ARGUMENTS
task
task_struct pointer
DESCRIPTION
This function returns the thread id of the given task as seen in the pid namespace.
SEE ALSO
tapset::task(3stap)
SystemTap Tapset Reference March 2016 FUNCTION::TASK_NS_TI(3stap)