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