Provided by: systemtap-doc_2.9-2ubuntu2_all 

NAME
probe::nfsd.lookup - NFS server opening or searching file for a file for client
SYNOPSIS
nfsd.lookup
VALUES
filelen
the length of file name
filename
file name
fh
file handle of parent dir(the first part is the length of the file handle)
client_ip
the ip address of client
SEE ALSO
tapset::nfsd(3stap)
SystemTap Tapset Reference April 2016 PROBE::NFSD.LOOKUP(3stap)