Function ng_package_data

freebsd/netgraph/ng_base.c:3512–3525

* Put mbuf into the item. * Hook and node references will be removed when the item is dequeued. * (or equivalent) * (XXX) Unsafe because no reference held by peer on remote node. * remote node might go away in this timescale. * We know the hooks can't go away because that would require getting * a writer item on both nodes and we must have at least a reader * here to be able to do this. *

 * This is possibly in the critical path for new data.
 */
item_p
ng_package_data(struct mbuf *m, int flags)
{
	item_p item;

	if ((item = ng_alloc_item(NGQF_DATA, flags)) == NULL) {
		NG_FREE_M(m);
		return (NULL);
	}
	ITEM_DEBUG_CHECKS;
	item->el_flags |= NGQF_READER;
	NGI_M(item) = m;
	return (item);
}

/*
 * Allocate a queue item and put items into it..