binder: filter out nodes when showing binder procs

Todd Kjos · gregkh · commit ecd589d8f566 · 2018-12-06T15:44:14.000+01:00
When dumping out binder transactions via a debug node,
the output is too verbose if a process has many nodes.
Change the output for transaction dumps to only display
nodes with pending async transactions.

Signed-off-by: Todd Kjos &lt;tkjos@google.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
diff --git a/drivers/android/binder.c b/drivers/android/binder.c
@@ -5418,6 +5418,9 @@ static void print_binder_proc(struct seq_file *m,
 	for (n = rb_first(&proc->nodes); n != NULL; n = rb_next(n)) {
 		struct binder_node *node = rb_entry(n, struct binder_node,
 						    rb_node);
+		if (!print_all && !node->has_async_transaction)
+			continue;
+
 		/*
 		 * take a temporary reference on the node so it
 		 * survives and isn't removed from the tree
