Provided by: systemtap-doc_2.9-2ubuntu2_all 

NAME
function::fullpath_struct_file - get the full path
SYNOPSIS
fullpath_struct_file:string(task:long,file:long)
ARGUMENTS
task
task_struct pointer.
file
Pointer to “struct file”.
DESCRIPTION
Returns the full dirent name (full path to the root), like the kernel d_path function.
SystemTap Tapset Reference April 2016 FUNCTION::FULLPATH_S(3stap)