diff mbox series

[2/2] mm/damon/core-test: test damon_split_region_at()'s access rate copying

Message ID 20231119171529.66863-2-sj@kernel.org
State New
Headers
Series [1/2] mm/damon/core: copy nr_accesses when splitting region |

Commit Message

SeongJae Park Nov. 19, 2023, 5:15 p.m. UTC 
  damon_split_region_at() should set access rate related fields of the
resulting regions same.  It may forgotten, and actually there was the
mistake before.  Test it with the unit test case for the function.

Signed-off-by: SeongJae Park <sj@kernel.org>
---
 mm/damon/core-test.h | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/mm/damon/core-test.h b/mm/damon/core-test.h
index 649adf91ebc5..e6a01ea2ec54 100644
--- a/mm/damon/core-test.h
+++ b/mm/damon/core-test.h
@@ -122,18 +122,25 @@  static void damon_test_split_at(struct kunit *test)
 {
 	struct damon_ctx *c = damon_new_ctx();
 	struct damon_target *t;
-	struct damon_region *r;
+	struct damon_region *r, *r_new;
 
 	t = damon_new_target();
 	r = damon_new_region(0, 100);
+	r->nr_accesses_bp = 420000;
+	r->nr_accesses = 42;
+	r->last_nr_accesses = 15;
 	damon_add_region(r, t);
 	damon_split_region_at(t, r, 25);
 	KUNIT_EXPECT_EQ(test, r->ar.start, 0ul);
 	KUNIT_EXPECT_EQ(test, r->ar.end, 25ul);
 
-	r = damon_next_region(r);
-	KUNIT_EXPECT_EQ(test, r->ar.start, 25ul);
-	KUNIT_EXPECT_EQ(test, r->ar.end, 100ul);
+	r_new = damon_next_region(r);
+	KUNIT_EXPECT_EQ(test, r_new->ar.start, 25ul);
+	KUNIT_EXPECT_EQ(test, r_new->ar.end, 100ul);
+
+	KUNIT_EXPECT_EQ(test, r->nr_accesses_bp, r_new->nr_accesses_bp);
+	KUNIT_EXPECT_EQ(test, r->nr_accesses, r_new->nr_accesses);
+	KUNIT_EXPECT_EQ(test, r->last_nr_accesses, r_new->last_nr_accesses);
 
 	damon_free_target(t);
 	damon_destroy_ctx(c);