probe::nfsd.proc.read — NFS server reading file for client
nfsd.proc.read
count
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
size
read bytes
version
nfs version
uid
requester's user id
vlen
read blocks
client_ip
the ip address of client
gid
requester's group id