linux-kernel - [PATCH v2 4/8] binder: fix BINDER_WORK_FROZEN

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Message-ID: <20240926233632.821189-5-cmllamas@google.com>
Date: Thu, 26 Sep 2024 23:36:15 +0000
From: Carlos Llamas <cmllamas@...gle.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
	"Arve Hjønnevåg" <arve@...roid.com>, Todd Kjos <tkjos@...roid.com>, Martijn Coenen <maco@...roid.com>, 
	Joel Fernandes <joel@...lfernandes.org>, Christian Brauner <brauner@...nel.org>, 
	Carlos Llamas <cmllamas@...gle.com>, Suren Baghdasaryan <surenb@...gle.com>, 
	Yu-Ting Tseng <yutingtseng@...gle.com>
Cc: linux-kernel@...r.kernel.org, kernel-team@...roid.com, 
	Alice Ryhl <aliceryhl@...gle.com>, stable@...r.kernel.org, Todd Kjos <tkjos@...gle.com>
Subject: [PATCH v2 4/8] binder: fix BINDER_WORK_FROZEN_BINDER debug logs

The BINDER_WORK_FROZEN_BINDER type is not handled in the binder_logs
entries and it shows up as "unknown work" when logged:

  proc 649
  context binder-test
    thread 649: l 00 need_return 0 tr 0
    ref 13: desc 1 node 8 s 1 w 0 d 0000000053c4c0c3
    unknown work: type 10

This patch add the freeze work type and is now logged as such:

  proc 637
  context binder-test
    thread 637: l 00 need_return 0 tr 0
    ref 8: desc 1 node 3 s 1 w 0 d 00000000dc39e9c6
    has frozen binder

Fixes: d579b04a52a1 ("binder: frozen notification")
Cc: stable@...r.kernel.org
Acked-by: Todd Kjos <tkjos@...gle.com>
Signed-off-by: Carlos Llamas <cmllamas@...gle.com>
---
 drivers/android/binder.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index d955135ee37a..2be9f3559ed7 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -6408,6 +6408,9 @@ static void print_binder_work_ilocked(struct seq_file *m,
 	case BINDER_WORK_CLEAR_DEATH_NOTIFICATION:
 		seq_printf(m, "%shas cleared death notification\n", prefix);
 		break;
+	case BINDER_WORK_FROZEN_BINDER:
+		seq_printf(m, "%shas frozen binder\n", prefix);
+		break;
 	default:
 		seq_printf(m, "%sunknown work: type %d\n", prefix, w->type);
 		break;
-- 
2.46.1.824.gd892dcdcdd-goog