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 0013C38E129; Tue, 28 Jul 2026 04:12:57 +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=1785211980; cv=none; b=TmRVgzk3EN75LIzLqM3kRDZGbWcrjeB82yQlOCFmNQexNtAOzPgNrPLIsmEZYLxdMV7y3uEWXQERRg0xJwrEsQYyz9T39jZpmUc1cb3rlfi42GHDGbraGSKAnfeXu14GuKYk4J4/s1J3r6m9y4kSIjzy8LH8Gz4tAjbgL8Tt7yk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785211980; c=relaxed/simple; bh=I7iSQWo3DIeCl4GG9ImX2V39xbLJgFz5OBrIHCf8Mf0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=G4CrkHMndmUNRd4G2FX3jO/yoNoNOj0nFWJb68HE/tscPblMyiEYqgIoQ366muyy9w1twmNfIfzY+KoYHiyPpOOGYP6Gw9otHMyhUv9jElOQMwL4HTrHQQPi3Y71cqQmd1s/hiBD6wOcEcZojTUxgq4tNLWXkDhAba4laxbfOk0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=o0Yk+E8c; 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="o0Yk+E8c" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AEAD31F01558; Tue, 28 Jul 2026 04:12:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785211976; bh=m+OX/QoubOtPs5CYX5dE9pYfjfAmb4FTinvx7UvjP30=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=o0Yk+E8cMC8Pge85QoIORj3dRWhVCFkvO4BmM61deMcSxvvkrTH2XOqCaeskS5VPL VaYCZMOsciebOOHkqJ1s3k8C1AxIExYCFBcZwBMZ4pQO8fCEI3W4cZ6lXnt58Q4qEy MPE7DcS8TF2LC05pO+fm2jXT3hjw8zwzNdsDST7yYTiPgthNqNe7p8wD3I/ROAucpf bxUNC0/uEEkEF77hjhN51POIvqV/Xnu/CbK++6yADl5jJ+95XJQ2MiAH0ZlXgPsYJN fQkx6hLrjldrJEdH5n8X5jvRm8oYW4S8mOe40wx5v/J3aDn6X4aSouHk7wBNiAy+Q7 RxLATF8zAghTw== From: SJ Park To: Cc: SJ Park , Shuah Khan , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v2.2 14/17] selftests/damon/sysfs.sh: test probe prep sysfs files Date: Mon, 27 Jul 2026 21:12:35 -0700 Message-ID: <20260728041242.187380-15-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260728041242.187380-1-sj@kernel.org> References: <20260728041242.187380-1-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