mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-16 16:01:44 -04:00
Code Issues Packages Projects Releases Wiki Activity

mm/damon/tests/core-kunit: add a test for damon_is_last_region()

Browse Source 
There was a bug [1] in damon_is_last_region().  Add a kunit test to not
reintroduce the bug.

Link: https://lkml.kernel.org/r/20260307195356.203753-3-sj@kernel.org
Link: https://lore.kernel.org/20260114152049.99727-1-sj@kernel.org/ [1]
Signed-off-by: SeongJae Park <sj@kernel.org>
Tested-by: wang lian <lianux.mm@gmail.com>
Reviewed-by: wang lian <lianux.mm@gmail.com>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: David Gow <davidgow@google.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes (Oracle) <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
SeongJae Park
2026-03-07 11:53:50 -08:00
committed by Andrew Morton
parent 5d6a520aff
commit fd83b0d1c4
1 changed files with 23 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
mm/damon/tests/core-kunit.h
View File

@@ -1311,6 +1311,28 @@ static void damon_test_apply_min_nr_regions(struct kunit *test)
damon_test_apply_min_nr_regions_for(test, 10, 2, 10, 2, 5);
}
static void damon_test_is_last_region(struct kunit *test)
{
struct damon_region *r;
struct damon_target *t;
int i;
t = damon_new_target();
if (!t)
kunit_skip(test, "target alloc fail\n");
for (i = 0; i < 4; i++) {
r = damon_new_region(i * 2, (i + 1) * 2);
if (!r) {
damon_free_target(t);
kunit_skip(test, "region alloc %d fail\n", i);
}
damon_add_region(r, t);
KUNIT_EXPECT_TRUE(test, damon_is_last_region(r, t));
}
damon_free_target(t);
}
static struct kunit_case damon_test_cases[] = {
KUNIT_CASE(damon_test_target),
KUNIT_CASE(damon_test_regions),
@@ -1339,6 +1361,7 @@ static struct kunit_case damon_test_cases[] = {
KUNIT_CASE(damon_test_feed_loop_next_input),
KUNIT_CASE(damon_test_set_filters_default_reject),
KUNIT_CASE(damon_test_apply_min_nr_regions),
KUNIT_CASE(damon_test_is_last_region),
{},
};