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