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