From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pg1-f202.google.com (mail-pg1-f202.google.com [209.85.215.202]) (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 AD4D522A813 for ; Fri, 27 Jun 2025 20:37:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.202 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751056676; cv=none; b=Ww0KxF+EWaF2Pe3gVMikHDYpnOsJ9/ROAKGROfame/0EhU6u9J2cjBEHhhM4aTWVkH4U0W9cfFOCI5W43JJA3cIBQqKZ4Z/E1kMO9gHBfE0fZMPUMPfmHdCT4TC9urN5mxXTCI0ArVVWN3rxubNHGMrW/PW/WbLS68llq57nq94= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751056676; c=relaxed/simple; bh=jVCnSgKgTBaALIL5kswG283XAlndIy4N1hK9vcUxt+M=; h=Date:Mime-Version:Message-ID:Subject:From:To:Cc:Content-Type; b=RMGG45/FEQrwaAHKjGG14Qj7BFcUCMaQUxn1Ov5DIeB0I2uwHRELIiK1gEJwNAs6P/A03umqk2vhVE3OxW54Vv3WwsodmQS6KN3BEqqhW6W15MfwktBeVAH2r24rhNovV46d0HXWOM8l98BafukgMEim76yVuxjJ1DHDXMnj0K0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--ynaffit.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=ZWZBKHma; arc=none smtp.client-ip=209.85.215.202 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--ynaffit.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="ZWZBKHma" Received: by mail-pg1-f202.google.com with SMTP id 41be03b00d2f7-b31bc3128fcso760990a12.0 for ; Fri, 27 Jun 2025 13:37:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1751056674; x=1751661474; darn=vger.kernel.org; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=KNNvKIHZytjNLKER5B5vXrvdNfJHgheLSxitrBAGU4I=; b=ZWZBKHmaK5wk/zCcm449atcmiRiZ5iBkLYwQUhRf//jWZ97rFcD8eZj5aJEADQppvc cWt05VHRyOj/pD6rgY2WVYm3gtISa/HVIY65zetcMsme9DBzzHanIHyo1E5E7UVYlvWo dFn9iO8lqjDVB9NPStf0jB7E1qtJhv3/+mcZR977v8eMK8b3klnPNj+X4Ux/WysWh0Dl 7HqHWL5f5+gEr92ZKZA1Y10N4ef/Z28sHyl4FrHUEMA56Pomt4wGYr29ZxPdWjJo1Cz0 DsRr6Ucx772Bk/or7nXCZr9D8zhsJE/8x5EzqAff3404eZpnjopEFgLoGd4kfLy1od7v yrHA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1751056674; x=1751661474; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=KNNvKIHZytjNLKER5B5vXrvdNfJHgheLSxitrBAGU4I=; b=MSCvOIsDaxeGV89hiPIL5scQJ63kRUpTnbHqw5oArwMRenppMySjKoHzqs44CHV08b zVlf6NvKMwpHaRw5peomqZG1s0gIni/er7UvKtj/qXLi4Ga6h1+6kNTWvclUmGhZ6hLh rEgzKpRHnDo4oLktybqDkdfL/MRhY3pzE7WWzc3vCWSUqiutfHYB8ZpZ6Guaiapj7B80 MmyN5kxtqR8IL31WADj6ZxNVCBNBBCGkSIqZ6sL60Z2N95pB77Kv0l0ES9H2y/z3DFLv yQAP3zJriX1CFrNUgoiWYyaeFAYEvPjeK5gj/ZEOVkIRuQhrcQ/CttILwkOFAvKaaZdk ISTg== X-Forwarded-Encrypted: i=1; AJvYcCXOnN96q9FrWM0z4SSAm40B6/Xbc2YXzqT/VwpLT3ldsYc8xCZtGGikMpWfJwO3dMtzBGafL6zF/er0ajaXr4U=@vger.kernel.org X-Gm-Message-State: AOJu0Yz+h2lacdDZ30m/v5NYueTJ9zA6EZrOtfoBoNHI30sTODmBI8bV uk07+YmwgPlQMRUNCPMnA15ubezhlqK9i1TQcPaCY+si4nxicEruJX/IwC6bzyA2AON0VHoqlis RdMyFjQlkzQ== X-Google-Smtp-Source: AGHT+IEQQPKAxqNl0ciLgZyXlCg61DjKjjnF3AS+cRg0GMCYoGzXmaiv9R+XlDrGhMU44WAuOC72MBc+TqmK X-Received: from pjn8.prod.google.com ([2002:a17:90b:5708:b0:312:151d:c818]) (user=ynaffit job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:278e:b0:311:ffe8:20e6 with SMTP id 98e67ed59e1d1-318c8ecd20cmr6632918a91.3.1751056673987; Fri, 27 Jun 2025 13:37:53 -0700 (PDT) Date: Fri, 27 Jun 2025 13:37:41 -0700 Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.50.0.727.gbf7dc18ff4-goog Message-ID: <20250627203748.881022-1-ynaffit@google.com> Subject: [PATCH 0/5] binder: Set up KUnit tests for alloc From: Tiffany Yang To: linux-kernel@vger.kernel.org Cc: keescook@google.com, kernel-team@android.com, Greg Kroah-Hartman , "=?UTF-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?=" , Todd Kjos , Martijn Coenen , Joel Fernandes , Christian Brauner , Carlos Llamas , Suren Baghdasaryan , Brendan Higgins , David Gow , Rae Moar , linux-kselftest@vger.kernel.org, kunit-dev@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, binder_alloc_selftest provides a robust set of checks for the binder allocator, but it rarely runs because it must hook into a running binder process and block all other binder threads until it completes. The test itself is a good candidate for conversion to KUnit, and it can be further isolated from user processes by using a test-specific lru freelist instead of the global one. This series converts the selftest to KUnit to make it less burdensome to run and to set up a foundation for testing future binder_alloc changes. Thanks, Tiffany Tiffany Yang (5): binder: Fix selftest page indexing binder: Store lru freelist in binder_alloc binder: Scaffolding for binder_alloc KUnit tests binder: Convert binder_alloc selftests to KUnit binder: encapsulate individual alloc test cases drivers/android/Kconfig | 15 +- drivers/android/Makefile | 2 +- drivers/android/binder.c | 10 +- drivers/android/binder_alloc.c | 39 +- drivers/android/binder_alloc.h | 14 +- drivers/android/binder_alloc_selftest.c | 306 ----------- drivers/android/binder_internal.h | 4 + drivers/android/tests/.kunitconfig | 3 + drivers/android/tests/Makefile | 3 + drivers/android/tests/binder_alloc_kunit.c | 572 +++++++++++++++++++++ include/kunit/test.h | 12 + lib/kunit/user_alloc.c | 4 +- 12 files changed, 644 insertions(+), 340 deletions(-) delete mode 100644 drivers/android/binder_alloc_selftest.c create mode 100644 drivers/android/tests/.kunitconfig create mode 100644 drivers/android/tests/Makefile create mode 100644 drivers/android/tests/binder_alloc_kunit.c -- 2.50.0.727.gbf7dc18ff4-goog