From nobody Fri Dec 19 11:00:26 2025 Received: from mail-pg1-f201.google.com (mail-pg1-f201.google.com [209.85.215.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 222E41DA32F for ; Tue, 2 Jul 2024 23:05:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719961512; cv=none; b=hZWppnagH8Oi4PEz4LV2XOOTZdJQ3LFmMrnanTieu9SolNjn6oVvjDmjEWb62eRFKg439sadpACfb2dbw4hEXsi6WNRT3THVpBp463xeM3lpIhOAGk/Uk+9zzII9FRtYZhmiAXEcEgO40YWceudUjgQjvUW6rQjq6+VFogh4F3A= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719961512; c=relaxed/simple; bh=GAZLNxCDl/VzE2feZ2Or9rZGG2bf2m8cFjRgNzJefBk=; h=Date:Mime-Version:Message-ID:Subject:From:To:Cc:Content-Type; b=uJmZRcgGHdB2jQ4PMqsQ61TWSy9A1jxA6uKkhfcxF894bT/caoNzWKDo4PPZuDmT3YVvL4SPTlRRGqe8kSmMYWaUq5ZF6opApfwSRgymh6hnLwjp9zclsWvZouep0W/FHMaUhryfEXoJXKZk4pW353u/uqa6RECIYiatVLK2b5M= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--yutingtseng.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=SX0VDV+s; arc=none smtp.client-ip=209.85.215.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--yutingtseng.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="SX0VDV+s" Received: by mail-pg1-f201.google.com with SMTP id 41be03b00d2f7-6507e2f0615so2898011a12.1 for ; Tue, 02 Jul 2024 16:05:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1719961510; x=1720566310; darn=vger.kernel.org; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=6sbCbDH8DWJ9lXy6bGpx3jz+av+y6CU73Pt4IvzsaJU=; b=SX0VDV+sNJeF5W+cIkf8wGxHeNXBAhrbgrB9UuoRUqPEflUT1UNhEDWGzJu2c69jhb jIUES9JvotAesQkTGdT5zfDmWliaceMw/ci+CbeTov5abjzOtQP57R9vK/iurvNeU6gw meAjm8UbxIZ1NmrsneR9FdPgSTxEgbxbfzR9sZZOK3cwehDZiaeUY8g8/+Q16hsZvTBH ekwqhRJ+B9KG4nUiMdFXLAYsaB/nHxbJQ6+oxiXdW6Lzaf829kuLPB5Gdq5ewPYzHydS ml7GDSs7ojk1NlPy9GkvuFeK+f4Kby372WSuSHTrttqeDv19uMfrt7aic74ymg0me241 5Iuw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1719961510; x=1720566310; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=6sbCbDH8DWJ9lXy6bGpx3jz+av+y6CU73Pt4IvzsaJU=; b=OLnRWYCA8pGcr86gygM2AatthK5hwIjLd7tfS19taHuvBm2yIiYPLDKRAY41412F3z WKb8SZFqgX2HxLwgw/yxuyqhI+RFouBO6IG7AaVFcKKc9dm09D37wq6NeKbrfwbey+jK 8iIBYP5sNwXj7+bdLVKKkentPdMIfz7LIjmOYzHG4TNB+arDltFuDoPsc9q3Ebg+U16H uLYIyh6MljWoJ+VGnK/igoiK0yaC4IGl99zwm2CRuy/ZStZRErSywcoTQ0cIJTB5nzld cbDVL7jd5LV/44sw5nEJuYJ8X/R8jykn3ceq/e83diIXy17XqiQu+xH3Iu9sQxzuKvAB pPDg== X-Forwarded-Encrypted: i=1; AJvYcCUnhjhxc7SURuszBPNTZk7rfETKes4Iofn3e9UVg6YoW5y74b4A1lQfxf/0TSDNUFLhAM7ItiBpGbsRshOnc9Oqtpgs2KeDLgOaQMMQ X-Gm-Message-State: AOJu0YzxiAxwoXvxqv41wIARJjuvAXtCCE7OO+sAx39yN5kdy2othEWC fmhpeoNwK0tgJP93p3hyK1OCT7H0OUcI/YfMxkjdnBxM3RmLlZSyAO5p/JXppEY3Os9tycTUbCz JvND1as+PzFujocBjgnf1yA== X-Google-Smtp-Source: AGHT+IHM1kQ3vOaWP/zy1B+T0BIwVrVldgIGWVYTZIiQiW6Vm1X7Dn2vlVibHWtc5rsRwr/S7PgQhHQcrVHieyzjHw== X-Received: from yuting.c.googlers.com ([fda3:e722:ac3:cc00:24:72f4:c0a8:317f]) (user=yutingtseng job=sendgmr) by 2002:a63:371d:0:b0:6e5:fc24:5fe8 with SMTP id 41be03b00d2f7-73ce1b5754dmr22650a12.0.1719961510026; Tue, 02 Jul 2024 16:05:10 -0700 (PDT) Date: Tue, 2 Jul 2024 16:04:54 -0700 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.45.2.803.g4e1b14247a-goog Message-ID: <20240702230453.1441209-2-yutingtseng@google.com> Subject: [PATCH v1] binder: frozen notification binder_features flag From: Yu-Ting Tseng To: cmllamas@google.com, tkjos@google.com Cc: gregkh@linuxfoundation.org, arve@android.com, maco@android.com, joel@joelfernandes.org, brauner@kernel.org, surenb@google.com, aliceryhl@google.com, kernel-team@android.com, linux-kernel@vger.kernel.org, Yu-Ting Tseng Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add a flag to binder_features to indicate that the freeze notification feature is available. Acked-by: Carlos Llamas --- drivers/android/binderfs.c | 8 ++++++++ .../selftests/filesystems/binderfs/binderfs_test.c | 1 + 2 files changed, 9 insertions(+) diff --git a/drivers/android/binderfs.c b/drivers/android/binderfs.c index 3001d754ac36..ad1fa7abc323 100644 --- a/drivers/android/binderfs.c +++ b/drivers/android/binderfs.c @@ -58,6 +58,7 @@ enum binderfs_stats_mode { struct binder_features { bool oneway_spam_detection; bool extended_error; + bool freeze_notification; }; =20 static const struct constant_table binderfs_param_stats[] =3D { @@ -74,6 +75,7 @@ static const struct fs_parameter_spec binderfs_fs_paramet= ers[] =3D { static struct binder_features binder_features =3D { .oneway_spam_detection =3D true, .extended_error =3D true, + .freeze_notification =3D true, }; =20 static inline struct binderfs_info *BINDERFS_SB(const struct super_block *= sb) @@ -608,6 +610,12 @@ static int init_binder_features(struct super_block *sb) if (IS_ERR(dentry)) return PTR_ERR(dentry); =20 + dentry =3D binderfs_create_file(dir, "freeze_notification", + &binder_features_fops, + &binder_features.freeze_notification); + if (IS_ERR(dentry)) + return PTR_ERR(dentry); + return 0; } =20 diff --git a/tools/testing/selftests/filesystems/binderfs/binderfs_test.c b= /tools/testing/selftests/filesystems/binderfs/binderfs_test.c index 5f362c0fd890..319567f0fae1 100644 --- a/tools/testing/selftests/filesystems/binderfs/binderfs_test.c +++ b/tools/testing/selftests/filesystems/binderfs/binderfs_test.c @@ -65,6 +65,7 @@ static int __do_binderfs_test(struct __test_metadata *_me= tadata) static const char * const binder_features[] =3D { "oneway_spam_detection", "extended_error", + "freeze_notification", }; =20 change_mountns(_metadata); --=20 2.45.2.803.g4e1b14247a-goog