function::task_ns_gid - The group identifier of the task as seen in a namespace

task
           task_struct pointer

       This function returns the group id of the given task as seen in in the given user namespace.

       function::task_ns_gid - The group identifier of the task as seen in a namespace

tapset::task(3stap)

SystemTap Tapset Reference                         April 2024                        FUNCTION::TASK_NS_GI(3stap)

           task_ns_gid:long(task:long)