From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7B06E30649C; Tue, 1 Sep 2026 04:34:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788237272; cv=none; b=UzcW/HYuN+U0DLkG6rmaoAmtNOlADrCa/99dSx7OvPtHU0kQ3z1GgDS1bXl7XROL6cqkasMHj3HCV0LicS4aWG2WeVyt5IBV1hSpKhxoI0pRmlomERd0ACkU4jL/8L+BuLVDo2xR49JA+6zrW7/72NGE3HjE5fnISe9QVoWNFbc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788237272; c=relaxed/simple; bh=I7iSQWo3DIeCl4GG9ImX2V39xbLJgFz5OBrIHCf8Mf0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=KL7Zh5u9SuevELtTEgxzQqiPmLpkaQxkAk2sbBqXd3Cw+tWQ724rpCsJO8phK/RPmcDq6T4DRKVx/6g3ihcVpe37125svKqNWyPsXWmR8CClMAClRJf276vpTjeQwGcJRBj0TUREKj5aEqjK1b633Ua3/xMbKmKEMy/4dgVkaUg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fLCE2Ixd; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="fLCE2Ixd" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2AA701F000E9; Tue, 1 Sep 2026 04:34:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788237270; bh=m+OX/QoubOtPs5CYX5dE9pYfjfAmb4FTinvx7UvjP30=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=fLCE2Ixdi6gF8dbq+fA6A0ezfDrlAohge5ca00te/Onhm3sslbns7GdQg0TbY55av 6g/Sg/aQ9rZgJhwTlOG0kCbibygq8/VuaycDskgeVhb3bKr3bhbJi5pD9OPD3h8v2J 8WzC5IroH2uWwiwNcVQUj9aV2c37FrLJqh2Gii25Gc4oyggSFj5sxOFm7BcMXPjN6N P+apq0UF/ojAbu9lpaleI7SCVUBkvda5hSQcM+59xHCh9u0pbDTn8OfVheyk4es96W dYGH4fSUE2kS5ZA2gQQLt6R6DA6Zq8jTNjIEYk9gAK/hHBa3n1MBoHYenavl53jUtm zhphVB9A9l8Zw== From: SJ Park To: Andrew Morton Cc: SJ Park , Shuah Khan , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 14/17] selftests/damon/sysfs.sh: test probe prep sysfs files Date: Mon, 31 Aug 2026 21:34:10 -0700 Message-ID: <20260901043417.2165-15-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260901043417.2165-1-sj@kernel.org> References: <20260901043417.2165-1-sj@kernel.org> Precedence: bulk X-Mailing-List: damon@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add basic file operations test for newly introduced DAMON probe prep sysfs directories and files. Signed-off-by: SJ Park --- tools/testing/selftests/damon/sysfs.sh | 27 ++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/tools/testing/selftests/damon/sysfs.sh b/tools/testing/selftests/damon/sysfs.sh index f7fb94b84e716..ddebde6edabe4 100755 --- a/tools/testing/selftests/damon/sysfs.sh +++ b/tools/testing/selftests/damon/sysfs.sh @@ -361,6 +361,32 @@ test_intervals() test_intervals_goal "$intervals_dir/intervals_goal" } +test_damon_prep() +{ + damon_prep_dir=$1 + ensure_file "$damon_prep_dir/prep_action" "exist" "600" + ensure_write_succ "$damon_prep_dir/prep_action" "set_pgidle" \ + "valid input" + ensure_write_fail "$damon_prep_dir/prep_action" "foo" "invalid input" +} + +test_damon_preps() +{ + preps_dir=$1 + ensure_dir "$preps_dir" "exist" + ensure_file "$preps_dir/nr_preps" "exist" "600" + ensure_write_succ "$preps_dir/nr_preps" "1" "valid input" + test_damon_prep "$preps_dir/0" + + ensure_write_succ "$preps_dir/nr_preps" "2" "valid input" + test_damon_prep "$preps_dir/0" + test_damon_prep "$preps_dir/1" + + ensure_write_succ "$preps_dir/nr_preps" "0" "valid input" + ensure_dir "$preps_dir/0" "not_exist" + ensure_dir "$preps_dir/1" "not_exist" +} + test_damon_filter() { damon_filter_dir=$1 @@ -392,6 +418,7 @@ test_probe() { probe_dir=$1 ensure_dir "$probe_dir" "exist" + test_damon_preps "$probe_dir/preps" test_damon_filters "$probe_dir/filters" } -- 2.47.3