tools/selftets/damon/sysfs: test tried_regions directory existence

Add a simple test case for ensuring tried_regions directory existence.

Link: https://lkml.kernel.org/r/20221101220328.95765-7-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/tools/testing/selftests/damon/sysfs.sh b/tools/testing/selftests/damon/sysfs.sh
index 89592c64462f824b9462969d91cf9bcf515241b2..db4942383a50f523ca8bb1cb1a682a13be521899 100644 (file)
--- a/tools/testing/selftests/damon/sysfs.sh
+++ b/tools/testing/selftests/damon/sysfs.sh
@@ -80,6 +80,12 @@ test_range()
        ensure_file "$range_dir/max" "exist" 600
 }
 
+test_tried_regions()
+{
+       tried_regions_dir=$1
+       ensure_dir "$tried_regions_dir" "exist"
+}
+
 test_stats()
 {
        stats_dir=$1
@@ -138,6 +144,7 @@ test_scheme()
        test_quotas "$scheme_dir/quotas"
        test_watermarks "$scheme_dir/watermarks"
        test_stats "$scheme_dir/stats"
+       test_tried_regions "$scheme_dir/tried_regions"
 }
 
 test_schemes()