rrw_init_flags
rrw_init_flags(&ip->i_lock, "isoinode", RWL_DUPOK | RWL_IS_VNODE);
rrw_init_flags(&up->u_lock, "unode", RWL_DUPOK | RWL_IS_VNODE);
rrw_init_flags(&ip->i_lock, "fuseinode",
rrw_init_flags(&ldep->de_lock, "denode", RWL_DUPOK | RWL_IS_VNODE);
rrw_init_flags(&np->n_lock, "nfsnode", RWL_DUPOK | RWL_IS_VNODE);
#define rrw_init(rrwl, name) rrw_init_flags(rrwl, name, 0)
rrw_init_flags(&node->tn_vlock, "tnode", RWL_DUPOK | RWL_IS_VNODE);
rrw_init_flags(&ip->i_lock, "inode", RWL_DUPOK | RWL_IS_VNODE);
rrw_init_flags(&ip->i_lock, "inode", RWL_DUPOK | RWL_IS_VNODE);