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