Function lf_remove_edge

freebsd/kern/kern_lockf.c:940–953

* Remove an edge from the lock graph. */

 * Remove an edge from the lock graph.
 */
static void
lf_remove_edge(struct lockf_edge *e)
{
	struct owner_graph *g = &lf_owner_graph;
	struct lockf_entry *x = e->le_from;
	struct lockf_entry *y = e->le_to;

	graph_remove_edge(g, x->lf_owner->lo_vertex, y->lf_owner->lo_vertex);
	LIST_REMOVE(e, le_outlink);
	LIST_REMOVE(e, le_inlink);
	e->le_from = NULL;
	e->le_to = NULL;
	lf_free_edge(e);
}

/*
 * Remove all out-going edges from lock x.