Commit 2e014660 authored by SeongJae Park's avatar SeongJae Park Committed by Linus Torvalds
Browse files

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: 17ccae8b ("mm/damon: add kunit tests")
Signed-off-by: default avatarSeongJae Park <sj@kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent a4aeaa06

mm/damon/core-test.h

+2 −2
Original line number Diff line number Diff line
@@ -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);

}