DAMOS quota goal uses 'nid' field when the metric is
DAMOS_QUOTA_NODE_MEM_{USED,FREE}_BP.  But the goal commit function is
not updating the goal's nid field.  Fix it.

Fixes: 0e1c773b501f ("mm/damon/core: introduce damos quota goal metrics for memory node utilization") # 6.16.x
Cc: stable@vger.kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
---
 mm/damon/core.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/mm/damon/core.c b/mm/damon/core.c
index f3ec3bd736ec..52a48c9316bc 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -756,6 +756,19 @@ static struct damos_quota_goal *damos_nth_quota_goal(
 	return NULL;
 }
 
+static void damos_commit_quota_goal_union(
+		struct damos_quota_goal *dst, struct damos_quota_goal *src)
+{
+	switch (dst->metric) {
+	case DAMOS_QUOTA_NODE_MEM_USED_BP:
+	case DAMOS_QUOTA_NODE_MEM_FREE_BP:
+		dst->nid = src->nid;
+		break;
+	default:
+		break;
+	}
+}
+
 static void damos_commit_quota_goal(
 		struct damos_quota_goal *dst, struct damos_quota_goal *src)
 {
@@ -764,6 +777,7 @@ static void damos_commit_quota_goal(
 	if (dst->metric == DAMOS_QUOTA_USER_INPUT)
 		dst->current_value = src->current_value;
 	/* keep last_psi_total as is, since it will be updated in next cycle */
+	damos_commit_quota_goal_union(dst, src);
 }
 
 /**
@@ -797,6 +811,7 @@ int damos_commit_quota_goals(struct damos_quota *dst, struct damos_quota *src)
 				src_goal->metric, src_goal->target_value);
 		if (!new_goal)
 			return -ENOMEM;
+		damos_commit_quota_goal_union(new_goal, src_goal);
 		damos_add_quota_goal(dst, new_goal);
 	}
 	return 0;

base-commit: 5d6176edfeb848b1039a1a2c9c1c36dd7f83150f
-- 
2.39.5