From: SeongJae Park <sj@kernel.org>
To: akpm@linux-foundation.org
Cc: shuah@kernel.org, brendanhiggins@google.com, linux-mm@kvack.org,
linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org,
SeongJae Park <sj@kernel.org>
Subject: [PATCH 08/11] selftests/damon: Test DAMON enabling with empty target_ids case
Date: Wed, 1 Dec 2021 15:04:37 +0000 [thread overview]
Message-ID: <20211201150440.1088-9-sj@kernel.org> (raw)
In-Reply-To: <20211201150440.1088-1-sj@kernel.org>
DAMON debugfs didn't check empty targets when starting monitoring, and
the issue is fixed with commit b5ca3e83ddb0 ("mm/damon/dbgfs: add
adaptive_targets list check before enable monitor_on"). To avoid future
regression, this commit adds a test case for that in DAMON selftests.
Signed-off-by: SeongJae Park <sj@kernel.org>
---
tools/testing/selftests/damon/debugfs_attrs.sh | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/tools/testing/selftests/damon/debugfs_attrs.sh b/tools/testing/selftests/damon/debugfs_attrs.sh
index fc80380c59f0..d0916373f310 100644
--- a/tools/testing/selftests/damon/debugfs_attrs.sh
+++ b/tools/testing/selftests/damon/debugfs_attrs.sh
@@ -94,4 +94,13 @@ test_write_succ "$file" "" "$orig_content" "empty input"
test_content "$file" "$orig_content" "" "empty input written"
echo "$orig_content" > "$file"
+# Test empty targets case
+# =======================
+
+orig_target_ids=$(cat "$DBGFS/target_ids")
+echo "" > "$DBGFS/target_ids"
+orig_monitor_on=$(cat "$DBGFS/monitor_on")
+test_write_fail "$DBGFS/monitor_on" "on" "orig_monitor_on" "empty target ids"
+echo "$orig_target_ids" > "$DBGFS/target_ids"
+
echo "PASS"
--
2.17.1
next prev parent reply other threads:[~2021-12-01 15:05 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-01 15:04 [PATCH 00/11] mm/damon: Trivial fixups and improvements SeongJae Park
2021-12-01 15:04 ` [PATCH 01/11] mm/damon/core: Use better timer mechanisms selection threshold SeongJae Park
2021-12-01 15:04 ` [PATCH 02/11] mm/damon/dbgfs: Remove an unnecessary error message SeongJae Park
2021-12-08 6:29 ` Xin Hao
2021-12-08 12:49 ` SeongJae Park
2021-12-08 15:13 ` Xin Hao
2021-12-08 16:48 ` SeongJae Park
2021-12-01 15:04 ` [PATCH 03/11] mm/damon/core: Remove unnecessary error messages SeongJae Park
2021-12-01 15:04 ` [PATCH 04/11] mm/damon/vaddr: Remove an unnecessary warning message SeongJae Park
2021-12-03 3:01 ` Muchun Song
2021-12-03 20:44 ` Andrew Morton
2021-12-04 2:37 ` Muchun Song
2021-12-01 15:04 ` [PATCH 05/11] mm/damon/vaddr-test: Split a test function having >1024 bytes frame size SeongJae Park
2021-12-01 15:04 ` [PATCH 06/11] mm/damon/vaddr-test: Remove unnecessary variables SeongJae Park
2021-12-01 15:04 ` [PATCH 07/11] selftests/damon: Skip test if DAMON is running SeongJae Park
2021-12-01 15:04 ` SeongJae Park [this message]
2021-12-01 15:04 ` [PATCH 09/11] selftests/damon: Test wrong DAMOS condition ranges input SeongJae Park
2021-12-01 15:04 ` [PATCH 10/11] selftests/damon: Test debugfs file reads/writes with huge count SeongJae Park
2021-12-01 15:04 ` [PATCH 11/11] selftests/damon: Split test cases SeongJae Park
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