tn_link_target
char * tn_link_target; /* (c) */
#define tn_link_target tn_spec.tn_link.tn_link_target
atomic_store_ptr(&nnode->tn_link_target, symlink);
symlink = node->tn_link_target;
atomic_store_ptr(&node->tn_link_target, NULL);
error = uiomove(node->tn_link_target, MIN(node->tn_size, uio->uio_resid),
symlink = atomic_load_ptr(&node->tn_link_target);