[merged mm-stable] mm-damon-tests-core-kunit-test-the-temporal-tuners-size-quota-conversion.patch removed from -mm tree

[merged mm-stable] mm-damon-tests-core-kunit-test-the-temporal-tuners-size-quota-conversion.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm/damon/tests/core-kunit: test the temporal tuner's size quota conversion
has been removed from the -mm tree.  Its filename was
     mm-damon-tests-core-kunit-test-the-temporal-tuners-size-quota-conversion.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: Donggeun Yoo <donggeunyoo.kernel@gmail.com>
Subject: mm/damon/tests/core-kunit: test the temporal tuner's size quota conversion
Date: Mon, 28 Sep 2026 01:48:15 -0700

damos_goal_tune_esz_bp_temporal() encodes the size quota in basis points,
so the conversion is exact only up to ULONG_MAX / 10000.  Pin the three
sizes around that boundary: the largest one that fits, the first one that
does not, and ULONG_MAX.

Link: https://lore.kernel.org/20260928084816.5575-3-sj@kernel.org
Signed-off-by: Donggeun Yoo <donggeunyoo.kernel@gmail.com>
Signed-off-by: SJ Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: SJ Park <sj@kernel.org>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: David Gow <davidgow@davidgow.net>
---

 mm/damon/tests/core-kunit.h |   48 ++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

--- a/mm/damon/tests/core-kunit.h~mm-damon-tests-core-kunit-test-the-temporal-tuners-size-quota-conversion
+++ a/mm/damon/tests/core-kunit.h
@@ -2347,6 +2347,53 @@ static void damon_test_rand(struct kunit
 	}
 }
 
+static void damos_test_esz_goal_temporal(struct kunit *test)
+{
+	struct damos_access_pattern pattern = {};
+	struct damos_watermarks wmarks = {};
+	struct damos_quota quota = {
+		.goal_tuner = DAMOS_QUOTA_GOAL_TUNER_TEMPORAL,
+	};
+	struct damos_quota_goal *goal;
+	struct damon_ctx *ctx;
+	struct damos *s;
+
+	ctx = damon_new_ctx();
+	KUNIT_ASSERT_NOT_NULL(test, ctx);
+
+	s = damon_new_scheme(&pattern, DAMOS_STAT, 0, &quota, &wmarks,
+			NUMA_NO_NODE);
+	if (!s) {
+		damon_destroy_ctx(ctx);
+		kunit_skip(test, "scheme alloc fail");
+	}
+	damon_add_scheme(ctx, s);
+
+	goal = damos_new_quota_goal(DAMOS_QUOTA_USER_INPUT, 10000);
+	if (!goal) {
+		damon_destroy_ctx(ctx);
+		kunit_skip(test, "quota goal alloc fail");
+	}
+	goal->current_value = 0;
+	damos_add_quota_goal(&s->quota, goal);
+
+	/* The largest size quota the basis-point conversion can hold. */
+	s->quota.sz = ULONG_MAX / 10000;
+	damos_set_effective_quota(ctx, s);
+	KUNIT_EXPECT_EQ(test, s->quota.esz, ULONG_MAX / 10000);
+
+	/* Any larger one saturates instead of wrapping. */
+	s->quota.sz = ULONG_MAX / 10000 + 1;
+	damos_set_effective_quota(ctx, s);
+	KUNIT_EXPECT_EQ(test, s->quota.esz, ULONG_MAX / 10000);
+
+	s->quota.sz = ULONG_MAX;
+	damos_set_effective_quota(ctx, s);
+	KUNIT_EXPECT_EQ(test, s->quota.esz, ULONG_MAX / 10000);
+
+	damon_destroy_ctx(ctx);
+}
+
 static struct kunit_case damon_test_cases[] = {
 	KUNIT_CASE(damon_test_target),
 	KUNIT_CASE(damon_test_regions),
@@ -2388,6 +2435,7 @@ static struct kunit_case damon_test_case
 	KUNIT_CASE(damon_test_is_last_region),
 	KUNIT_CASE(damon_test_walk_control_obsolete),
 	KUNIT_CASE(damon_test_rand),
+	KUNIT_CASE(damos_test_esz_goal_temporal),
 	{},
 };
 
_

Patches currently in -mm which might be from donggeunyoo.kernel@gmail.com are

userfaultfd-clear-the-inherited-uffd-bit-in-move_swap_pte.patch