From patchwork Mon Oct 31 18:25:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: SeongJae Park X-Patchwork-Id: 13026259 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3771AFA3746 for ; Mon, 31 Oct 2022 18:26:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230012AbiJaS0M (ORCPT ); Mon, 31 Oct 2022 14:26:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57344 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230013AbiJaS0L (ORCPT ); Mon, 31 Oct 2022 14:26:11 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 98C4813D51; Mon, 31 Oct 2022 11:26:07 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 41BB3B815FB; Mon, 31 Oct 2022 18:26:06 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 51E6AC433D7; Mon, 31 Oct 2022 18:26:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1667240764; bh=9HGMZvb82sypIRoPvUis/kF/0CFkMhQKBGHkFijQToc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gT3GFkLLYhjvWGz4OnEzIQ5xNeOb0lzsOAgIYeEe7IjZwKsqzCokjPYnlWESuDvXl 2qG2q7qyueHS+IPqYNIEkESAg6fXUCs9M3QgBkGE7KR0s8K4k+s9mqzhQ9NkZGAxas LQgPVn8K+JQJr614faMtd5JgZj7JWOAtQmNNV1dtfnjGXPMJ4RiWpXeNvpz58csDg0 4AIUFwxdOW6MGu4NJVnN13Zzjb9XaB089VAq0MOxHaLzf9Tfr7ZeD64HPgQizuf6uv zqSsF0FAzGME9XV5BG3uOVx5b15/VwkaauVO94yF9rEpLEX+rk9Pz8Rd+iq2usdmDw 09fAQmbBMDi6Q== From: SeongJae Park To: Andrew Morton Cc: Shuah Khan , damon@lists.linux.dev, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, SeongJae Park Subject: [PATCH 2/2] selftests/damon: test non-context inputs to rm_contexts file Date: Mon, 31 Oct 2022 18:25:54 +0000 Message-Id: <20221031182554.7882-3-sj@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221031182554.7882-1-sj@kernel.org> References: <20221031182554.7882-1-sj@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org There was a bug[1] that triggered by writing non-context DAMON debugfs file names to the 'rm_contexts' DAMON debugfs file. Add a selftest for the bug to avoid it happen again. [1] https://lore.kernel.org/damon/000000000000ede3ac05ec4abf8e@google.com/ Signed-off-by: SeongJae Park --- tools/testing/selftests/damon/Makefile | 1 + .../damon/debugfs_rm_non_contexts.sh | 19 +++++++++++++++++++ 2 files changed, 20 insertions(+) create mode 100755 tools/testing/selftests/damon/debugfs_rm_non_contexts.sh diff --git a/tools/testing/selftests/damon/Makefile b/tools/testing/selftests/damon/Makefile index af490acc5348..838a8e49f77b 100644 --- a/tools/testing/selftests/damon/Makefile +++ b/tools/testing/selftests/damon/Makefile @@ -7,6 +7,7 @@ TEST_FILES = _chk_dependency.sh _debugfs_common.sh TEST_PROGS = debugfs_attrs.sh debugfs_schemes.sh debugfs_target_ids.sh TEST_PROGS += debugfs_empty_targets.sh debugfs_huge_count_read_write.sh TEST_PROGS += debugfs_duplicate_context_creation.sh +TEST_PROGS += debugfs_rm_non_contexts.sh TEST_PROGS += sysfs.sh TEST_PROGS += reclaim.sh lru_sort.sh diff --git a/tools/testing/selftests/damon/debugfs_rm_non_contexts.sh b/tools/testing/selftests/damon/debugfs_rm_non_contexts.sh new file mode 100755 index 000000000000..48b7af6b022c --- /dev/null +++ b/tools/testing/selftests/damon/debugfs_rm_non_contexts.sh @@ -0,0 +1,19 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +source _debugfs_common.sh + +# Test putting non-ctx files/dirs to rm_contexts file +# =================================================== + +dmesg -C + +for file in "$DBGFS/"* +do + echo "$(basename "$f")" > "$DBGFS/rm_contexts" + if dmesg | grep -q BUG + then + dmesg + exit 1 + fi +done