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

NAME
probe::nfsd.commit - NFS server committing all pending writes to stable storage
SYNOPSIS
nfsd.commit
VALUES
flag
indicates whether this execution is a sync operation
size
read bytes
offset
the offset of file
fh
file handle (the first part is the length of the file handle)
count
read bytes
client_ip
the ip address of client
SystemTap Tapset Reference March 2016 PROBE::NFSD.COMMIT(3stap)