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