[merged mm-stable] mm-damon-tests-vaddr-kunit-replace-damon_add_region-with-damon_set_regions.patch removed from -mm tree

[merged mm-stable] mm-damon-tests-vaddr-kunit-replace-damon_add_region-with-damon_set_regions.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm/damon/tests/vaddr-kunit: replace damon_add_region() with damon_set_regions()
has been removed from the -mm tree.  Its filename was
     mm-damon-tests-vaddr-kunit-replace-damon_add_region-with-damon_set_regions.patch

This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: SeongJae Park <sj@kernel.org>
Subject: mm/damon/tests/vaddr-kunit: replace damon_add_region() with damon_set_regions()
Date: Fri, 22 May 2026 08:40:15 -0700

DAMON virtual address operation set (vaddr) unit tests is using
damon_add_region() for setup of DAMON monitoring target region boundaries
setup.  But, damon_set_regions() is designed for exactly the purpose.  All
other DAMON API callers use the function for the purpose.  Replace
damon_add_region() usage in the unit tests with damon_set_regions(), for
unifying the use case and reducing the maintenance cost.

Link: https://lore.kernel.org/20260522154026.80546-5-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/damon/tests/vaddr-kunit.h |   27 ++++++++++++++++++++-------
 1 file changed, 20 insertions(+), 7 deletions(-)

--- a/mm/damon/tests/vaddr-kunit.h~mm-damon-tests-vaddr-kunit-replace-damon_add_region-with-damon_set_regions
+++ a/mm/damon/tests/vaddr-kunit.h
@@ -132,22 +132,35 @@ static void damon_do_test_apply_three_re
 				unsigned long *expected, int nr_expected)
 {
 	struct damon_target *t;
+	struct damon_addr_range *ranges;
 	struct damon_region *r;
 	int i;
 
 	t = damon_new_target();
 	if (!t)
 		kunit_skip(test, "target alloc fail");
+
+	ranges = kmalloc_array(nr_regions / 2, sizeof(*ranges), GFP_KERNEL);
+	if (!ranges) {
+		damon_destroy_target(t, NULL);
+		kunit_skip(test, "ranges alloc fail");
+	}
 	for (i = 0; i < nr_regions / 2; i++) {
-		r = damon_new_region(regions[i * 2], regions[i * 2 + 1]);
-		if (!r) {
-			damon_destroy_target(t, NULL);
-			kunit_skip(test, "region alloc fail");
-		}
-		damon_add_region(r, t);
+		ranges[i].start = regions[i * 2];
+		ranges[i].end = regions[i * 2 + 1];
 	}
+	if (damon_set_regions(t, ranges, nr_regions / 2,
+				DAMON_MIN_REGION_SZ)) {
+		kfree(ranges);
+		damon_destroy_target(t, NULL);
+		kunit_skip(test, "damon_set_regions() fail");
+	}
+	kfree(ranges);
 
-	damon_set_regions(t, three_regions, 3, DAMON_MIN_REGION_SZ);
+	if (damon_set_regions(t, three_regions, 3, DAMON_MIN_REGION_SZ)) {
+		damon_destroy_target(t, NULL);
+		kunit_skip(test, "second damon_set_regions() fail");
+	}
 
 	for (i = 0; i < nr_expected / 2; i++) {
 		r = __nth_region_of(t, i);
_

Patches currently in -mm which might be from sj@kernel.org are

mm-damon-reclaim-handle-ctx-allocation-failure.patch
mm-damonn-lru_sort-handle-ctx-allocation-failure.patch
maintainers-add-testing-abi-documents-for-mm.patch