UPSTREAM: binder: filter out nodes when showing binder procs

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 <tkjos@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit ecd589d8f5661dd3a9545079a29b678cd9e3ecf3)
Bug: 112037142
Change-Id: Iaa76ebdc844037ce1ee3bf2e590676790a959cef

diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index f1599c1..bd9e285 100644 (file)
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -5472,6 +5472,9 @@ 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