mm/damon/core-test: fix wrong expectations for 'damon_split_regions_of()'

Kunit test cases for 'damon_split_regions_of()' expects the number of
regions after calling the function will be same to their request
('nr_sub').  However, the requested number is just an upper-limit,
because the function randomly decides the size of each sub-region.

This fixes the wrong expectation.

Link: https://lkml.kernel.org/r/20211028090628.14948-1-sj@kernel.org
Fixes: 17ccae8bb5c9 ("mm/damon: add kunit tests")
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/damon/core-test.h b/mm/damon/core-test.h
index c938a9c..7008c37 100644 (file)
--- a/mm/damon/core-test.h
+++ b/mm/damon/core-test.h
@@ -219,14 +219,14 @@ static void damon_test_split_regions_of(struct kunit *test)
        r = damon_new_region(0, 22);
        damon_add_region(r, t);
        damon_split_regions_of(c, t, 2);
-       KUNIT_EXPECT_EQ(test, damon_nr_regions(t), 2u);
+       KUNIT_EXPECT_LE(test, damon_nr_regions(t), 2u);
        damon_free_target(t);
 
        t = damon_new_target(42);
        r = damon_new_region(0, 220);
        damon_add_region(r, t);
        damon_split_regions_of(c, t, 4);
-       KUNIT_EXPECT_EQ(test, damon_nr_regions(t), 4u);
+       KUNIT_EXPECT_LE(test, damon_nr_regions(t), 4u);
        damon_free_target(t);
        damon_destroy_ctx(c);
 }