probe::nfsd.proc.read — NFS server reading file for client
nfsd.proc.read
vec
struct kvec, includes buf address in kernel address and length of each buffer
count
read bytes
version
nfs version
fh
file handle (the first part is the length of the file handle)
gid
requester's group id
proto
transfer protocol
uid
requester's user id
size
read bytes
client_ip
the ip address of client
vlen
read blocks
offset
the offset of file