From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f73.google.com (mail-pj1-f73.google.com [209.85.216.73]) (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 ED45472624 for ; Wed, 2 Jul 2025 01:04:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.73 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751418295; cv=none; b=QVgDoA5G56hALe/iToni61BdIrpRsnGxt/j9Z9nZliCRc1ULBSp2bY3ZYd3PZ2q42HiiG/Hcezl4En+KcHL3iSQJUdOqOBgTm20wKu9ajR+0KE4ZSBmHfxjMzO1us6kVVuu5XxW0pfpxZRqsJpSj+rVoHkVAreCUVK3XcdmABBY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751418295; c=relaxed/simple; bh=mkoinqK8VSa4bSxXL8+6TQQpGHjznYbUGTdepBjTk58=; h=Date:Mime-Version:Message-ID:Subject:From:To:Cc:Content-Type; b=jMw0ZDJBC95Qa2H+Ef05T39GYigk2aZMDVdFOMgi5pCn3cTMd0LSpz81+2wCHtOeJyIjIALgCKAyyfS584BQh8wky0dugBteg2fLzCInw/TEfN/QbjdvzxQL1MGE/2IlDKqAm/z80WkUkAXG/X1c+zBmP4mb+fXUDzeslEkzoco= 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=STQ65RKJ; arc=none smtp.client-ip=209.85.216.73 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="STQ65RKJ" Received: by mail-pj1-f73.google.com with SMTP id 98e67ed59e1d1-31202bbaafaso4000775a91.1 for ; Tue, 01 Jul 2025 18:04:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1751418293; x=1752023093; darn=vger.kernel.org; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=k6+7FGVXnmiRH7+roF8mwKR5/30REpmZHbgcAOWa//U=; b=STQ65RKJV+S33Zqa812FHDdwqq04rkBovHElIB4km9suluS2AXxxp3LiQn7mbXn7/h rdD/GXYidfR8abM4tzA9kP08JxMmpZGX7vBKxoOXzjJ3hIkRKIr2xYU054I0T4xt9lVU ZMgYKOwTJhiVGi7g1UZ5heRYugUvzph/S5Yv/FePaCXmxtwykKsXIFxoje9NtnyJKyj1 tbIVtMqVcDuoHkaBXtaRrMTPmXlfrybRd/j43EkXvMErRLbYpWL5VRGTnTfbW1yzOR7m 4V/P26mYI88kJxzhu2zwRhIHooifL2pGOsO8QC/fkd6c/MePe492ybU0NEgEp0/rD4Uv 7rKQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1751418293; x=1752023093; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=k6+7FGVXnmiRH7+roF8mwKR5/30REpmZHbgcAOWa//U=; b=oIEudu/6iDFVO5nUOKHkfQ75CNJ5emd7QEfRhW8KxqOfwBqisLtsfO1kvTmwGtdoDj EXqofAryDEvGia79ZCaDEMU2ZjrVso3BuEgE0V1t+fm8OToLPTVwVPJa03ej0FhQnznE 0Q03XcWIbHpfIkEkT2YRRyWBIo1mKg+k9YPSwoU9Q9O3QfhAcmY1tdFOyGYSwik+OZtC 2A89bwVY3AW+nA1lsq+s2oDmw3wW0UYX6sS2T5vIYDg4X2yVbAwViEEQeRl+IbRidNHC dWtK5OaSKzl9tE0+ogJgamKwronbkehbceey+Snq9jrqvHaojcBmibeNmUxvY6MsOnKc EMWA== X-Forwarded-Encrypted: i=1; AJvYcCU9Nc4MgtIbAHExsS9IwmHF9LuJRz2tZyYuHffmLJl2E4q+XJd7TFlbzX6O7boAJRja5kVZu3eDAso2XCfgzUk=@vger.kernel.org X-Gm-Message-State: AOJu0Yw8EgnsXNRLaVujARhkOASl8hz5N2VBINugrdF2v8QgybTgQ0d/ w3zurztdPxLZF34852hkMGnLDcfUA3xbhFJ43m6fFNpvo+OKp72mJ+P3SnG20dRG4AYtCPxDjcF Gll8KPl3Kjw== X-Google-Smtp-Source: AGHT+IGSGIt25XHkyQSkOAt8ewfiP6oL/YpHwTZsSxQcaWeClZrLFXIh5cq0roz0N+PKZICZZiHaVwqL3JnC X-Received: from pjbkl12.prod.google.com ([2002:a17:90b:498c:b0:311:c5d3:c7d0]) (user=ynaffit job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:3889:b0:312:f0d0:bc4 with SMTP id 98e67ed59e1d1-31a90b1c47emr1365291a91.5.1751418293134; Tue, 01 Jul 2025 18:04:53 -0700 (PDT) Date: Tue, 1 Jul 2025 18:04:40 -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: <20250702010447.2994412-1-ynaffit@google.com> Subject: [PATCH v2 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 unit 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 | 573 +++++++++++++++++++++ include/kunit/test.h | 12 + lib/kunit/user_alloc.c | 4 +- 12 files changed, 645 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