Provided by: systemtap-doc_5.0-2ubuntu1_amd64 

NAME
probe::nfsd.read - NFS server reading data from a file for client
SYNOPSIS
nfsd.read
VALUES
vlen read blocks count read bytes client_ip the ip address of client size read bytes file argument file, indicates if the file has been opened. fh file handle (the first part is the length of the file handle) offset the offset of file vec struct kvec, includes buf address in kernel address and length of each buffer
SEE ALSO
tapset::nfsd(3stap)