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

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