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 Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ 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