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b=EBdr/xZs5B5W+S7MzLoFwMPRyfEjsW+k6HCcE9NiTiL8uTaryCHfZvNF712h5qJ/o iARWc2nY4mMENH4fOsXpdHiaU+DlNvJx7fHhrMXt9a6ZRknOT6bm7ucvDv/VjNB4ob W0tVoelB0pu+4QSxSECqrCOI/ccK69mA8rB9yH7pT2hksFRUQQ9N5IKwWyVsfOdhuJ cDXfSkdf3X8SbtdVKYOcYOWJrWRfMvfqOBi7u0xK4AgJkeadIiLV4jMLx919Hm9z21 7Kmgv3fgdqSf+lu/oPpnUAxY0euGzCmsmH+z7dr6Tn9JgZYBG+D1tDG4gNRUfqSjxV bydtnKdRZhmDg== 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 14/17] selftests/damon/sysfs.sh: test probe prep sysfs files Date: Sat, 25 Jul 2026 14:02:18 -0700 Message-ID: <20260725210225.129944-15-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260725210225.129944-1-sj@kernel.org> References: <20260725210225.129944-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Queue-Id: 1C46320008 X-Rspamd-Server: rspam01 X-Stat-Signature: ouj41wauicw8y6dpadn9iizpae3r4zco X-HE-Tag: 1785013359-416909 X-HE-Meta: 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 0wn6hqRT RoDtF/N+t4wm4oafeGEB9pLmkRTshVj0JUMSEIyhXweDEiITPpXso2/cn+2lZTkoTCpAnBPZc4csqUOQNKWxWbZcCpcmj2Ws/VG984c5V0z5LM3AyPrU5JXUpkXUbWpxQMLDBZqkEgK+QOKFPWG58V1qZaNOWZ1kYwXLM4nAEPcYSaaedqF3btpRVn7+kPjwMKi/CUtvzyITTne2PUxQ8K9Jg5P0qJ56SznRr8sXpPJQV1ZtXkIqZmLd9cYHLRkx/0/2dYHsStosaQgnqA3oROOPd6ZYxD23GE3/vXd0j3W23YN0= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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