probe::nfsd.read — NFS server reading data from a file for client
nfsd.read
vlenread blocks
countread bytes
offsetthe offset of file
vecstruct kvec, includes buf address in kernel address and length of each buffer
fhfile handle (the first part is the length of the file handle)
sizeread bytes
client_ipthe ip address of client
fileargument file, indicates if the file has been opened.