Provided by: systemtap-doc_2.3-1ubuntu1.4_all 

NAME
probe::nfs.fop.lock - NFS client file lock operation
SYNOPSIS
nfs.fop.lock
VALUES
ino
inode number
fl_type
lock type
dev
device identifier
fl_start
starting offset of locked region
i_mode
file type and access rights
fl_end
ending offset of locked region
fl_flag
lock flags
cmd
cmd arguments
SystemTap Tapset Reference March 2016 PROBE::NFS.FOP.L(3stap)