probe::nfsd.read — NFS server reading data from a file for client
nfsd.read
count
read bytes
offset
the offset of file
vec
struct kvec, includes buf address in kernel address and length of each buffer
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)
client_ip
the ip address of client
vlen
read blocks