The patch titled
Subject: selftests/damon/sysfs: test filters directory
has been added to the -mm mm-unstable branch. Its filename is
selftests-damon-sysfs-test-filters-directory.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/selftests-damon-sysfs-test-filters-directory.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: SeongJae Park <sj@xxxxxxxxxx>
Subject: selftests/damon/sysfs: test filters directory
Date: Mon, 5 Dec 2022 23:08:28 +0000
Add simple test cases for scheme filters of DAMON sysfs interface. The
test cases check if the files are populated as expected, receives some
valid inputs, and refuses some invalid inputs.
Link: https://lkml.kernel.org/r/20221205230830.144349-10-sj@xxxxxxxxxx
Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Cc: Shuah Khan <shuah@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/damon/sysfs.sh | 29 +++++++++++++++++++++++
1 file changed, 29 insertions(+)
--- a/tools/testing/selftests/damon/sysfs.sh~selftests-damon-sysfs-test-filters-directory
+++ a/tools/testing/selftests/damon/sysfs.sh
@@ -96,6 +96,34 @@ test_stats()
done
}
+test_filter()
+{
+ filter_dir=$1
+ ensure_file "$filter_dir/type" "exist" "600"
+ ensure_write_succ "$filter_dir/type" "anon" "valid input"
+ ensure_write_succ "$filter_dir/type" "memcg" "valid input"
+ ensure_write_fail "$filter_dir/type" "foo" "invalid input"
+ ensure_file "$filter_dir/matching" "exist" "600"
+ ensure_file "$filter_dir/memcg_path" "exist" "600"
+}
+
+test_filters()
+{
+ filters_dir=$1
+ ensure_dir "$filters_dir" "exist"
+ ensure_file "$filters_dir/nr_filters" "exist" "600"
+ ensure_write_succ "$filters_dir/nr_filters" "1" "valid input"
+ test_filter "$filters_dir/0"
+
+ ensure_write_succ "$filters_dir/nr_filters" "2" "valid input"
+ test_filter "$filters_dir/0"
+ test_filter "$filters_dir/1"
+
+ ensure_write_succ "$filters_dir/nr_filters" "0" "valid input"
+ ensure_dir "$filters_dir/0" "not_exist"
+ ensure_dir "$filters_dir/1" "not_exist"
+}
+
test_watermarks()
{
watermarks_dir=$1
@@ -143,6 +171,7 @@ test_scheme()
test_access_pattern "$scheme_dir/access_pattern"
test_quotas "$scheme_dir/quotas"
test_watermarks "$scheme_dir/watermarks"
+ test_filters "$scheme_dir/filters"
test_stats "$scheme_dir/stats"
test_tried_regions "$scheme_dir/tried_regions"
}
_
Patches currently in -mm which might be from sj@xxxxxxxxxx are
mm-damon-core-implement-damos-filter.patch
mm-damon-paddr-support-damos-filters.patch
mm-damon-reclaim-add-a-parameter-called-skip_anon-for-avoiding-anonymous-pages-reclamation.patch
docs-admin-guide-damon-reclaim-document-skip_anon-parameter.patch
mm-damon-sysfs-schemes-implement-filters-directory.patch
mm-damon-sysfs-schemes-implement-filter-directory.patch
mm-damon-sysfs-schemes-connect-filter-directory-and-filters-directory.patch
mm-damon-sysfs-schemes-implement-scheme-filters.patch
selftests-damon-sysfs-test-filters-directory.patch
docs-admin-guide-mm-damon-usage-document-damos-filters-of-sysfs.patch
docs-abi-damon-document-scheme-filters-files.patch
