From patchwork Tue Oct 25 17:36:50 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: SeongJae Park X-Patchwork-Id: 13019602 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 E74D6FA3740 for ; Tue, 25 Oct 2022 17:37:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231795AbiJYRhD (ORCPT ); Tue, 25 Oct 2022 13:37:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35070 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231455AbiJYRg7 (ORCPT ); Tue, 25 Oct 2022 13:36:59 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8D7C8101D2; Tue, 25 Oct 2022 10:36:58 -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 dfw.source.kernel.org (Postfix) with ESMTPS id 2647161A94; Tue, 25 Oct 2022 17:36:58 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6D997C433D6; Tue, 25 Oct 2022 17:36:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1666719418; bh=zeB8cawVzfOV+gbJUOEQJ5p17R71STbXoreipmlZFTk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OkdC3Pae44Lo+tzDZU5ZqUGPIRcR8H7h0UL4JIPf3l/+1SJBAIwYIN5kpodxDhGCb K4isG0kLPGg82hLpEYWbjZTmiYeMI0X7N9G1AEs8ADtPwpvnYhxUW2YJaPP/R1w7fK wWaYIjpO1rxbPbYrSjPMKYsE3RdYeQCvRai7TzKwAQyHzn99okFHcdGOHs2eDE1ubT lFpWPXQsz+UUPb8FGDteoPbcjbnidXr8B+aDAgoL9NnPJAWHzJiqNl96M2WWDxQNyi /3K09Ik3vPGIfj+mqhw3T5J5bm0PU5jzMpx7Juh+ygmAJTK+xAHl0/a5NR3Ums0Ag6 6tsQRbsBPUA4Q== From: SeongJae Park To: Andrew Morton Cc: Shuah Khan , linux-kernel@vger.kernel.org, damon@lists.linux.dev, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, SeongJae Park Subject: [PATCH 4/4] selftests/damon: add tests for DAMON_LRU_SORT's enabled parameter Date: Tue, 25 Oct 2022 17:36:50 +0000 Message-Id: <20221025173650.90624-5-sj@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221025173650.90624-1-sj@kernel.org> References: <20221025173650.90624-1-sj@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Adds simple test cases for DAMON_LRU_SORT's 'enabled' parameter. Those tests are focusing on the synchronous behavior of DAMON_RECLAIM enabling and disabling. Signed-off-by: SeongJae Park --- tools/testing/selftests/damon/Makefile | 2 +- tools/testing/selftests/damon/lru_sort.sh | 41 +++++++++++++++++++++++ 2 files changed, 42 insertions(+), 1 deletion(-) create mode 100755 tools/testing/selftests/damon/lru_sort.sh diff --git a/tools/testing/selftests/damon/Makefile b/tools/testing/selftests/damon/Makefile index dbbf18cb3e6b..af490acc5348 100644 --- a/tools/testing/selftests/damon/Makefile +++ b/tools/testing/selftests/damon/Makefile @@ -8,6 +8,6 @@ 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 += sysfs.sh -TEST_PROGS += reclaim.sh +TEST_PROGS += reclaim.sh lru_sort.sh include ../lib.mk diff --git a/tools/testing/selftests/damon/lru_sort.sh b/tools/testing/selftests/damon/lru_sort.sh new file mode 100755 index 000000000000..61b80197c896 --- /dev/null +++ b/tools/testing/selftests/damon/lru_sort.sh @@ -0,0 +1,41 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + +if [ $EUID -ne 0 ] +then + echo "Run as root" + exit $ksft_skip +fi + +damon_lru_sort_enabled="/sys/module/damon_lru_sort/parameters/enabled" +if [ ! -f "$damon_lru_sort_enabled" ] +then + echo "No 'enabled' file. Maybe DAMON_LRU_SORT not built" + exit $ksft_skip +fi + +nr_kdamonds=$(pgrep kdamond | wc -l) +if [ "$nr_kdamonds" -ne 0 ] +then + echo "Another kdamond is running" + exit $ksft_skip +fi + +echo Y > "$damon_lru_sort_enabled" +nr_kdamonds=$(pgrep kdamond | wc -l) +if [ "$nr_kdamonds" -ne 1 ] +then + echo "kdamond is not turned on" + exit 1 +fi + +echo N > "$damon_lru_sort_enabled" +nr_kdamonds=$(pgrep kdamond | wc -l) +if [ "$nr_kdamonds" -ne 0 ] +then + echo "kdamond is not turned off" + exit 1 +fi