NFS Vnodes

syscall layer

UFS

NFS

server

VFS

RPC/UDP

network

NFS client stubs

nfs_vnodeops

The nfsnode holds information needed to interact with the server

to operate on the file.

struct nfsnode* np = VTONFS(vp);

The NFS protocol has an operation type for (almost) every vnode operation, with similar arguments/results.