3 files changed, 20 insertions, 8 deletions
diff --git a/mm/damon/core.c b/mm/damon/core.c
index c5b7296c69a0..10532159323a 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -1549,6 +1549,22 @@ int damon_set_region_biggest_system_ram_default(struct damon_target *t,
 	return damon_set_regions(t, &addr_range, 1);
 }
 
+/**
+ * damon_update_region_access_rate() - Update the access rate of a region.
+ * @r:		The DAMON region to update for its access check result.
+ * @accessed:	Whether the region has accessed during last sampling interval.
+ *
+ * Update the access rate of a region with the region's last sampling interval
+ * access check result.
+ *
+ * Usually this will be called by &damon_operations->check_accesses callback.
+ */
+void damon_update_region_access_rate(struct damon_region *r, bool accessed)
+{
+	if (accessed)
+		r->nr_accesses++;
+}
+
 static int __init damon_init(void)
 {
 	damon_region_cache = KMEM_CACHE(damon_region, 0);
diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c
index 909db25efb35..44f21860b555 100644
--- a/mm/damon/paddr.c
+++ b/mm/damon/paddr.c
@@ -157,14 +157,12 @@ static void __damon_pa_check_access(struct damon_region *r)
 	/* If the region is in the last checked page, reuse the result */
 	if (ALIGN_DOWN(last_addr, last_folio_sz) ==
 				ALIGN_DOWN(r->sampling_addr, last_folio_sz)) {
-		if (last_accessed)
-			r->nr_accesses++;
+		damon_update_region_access_rate(r, last_accessed);
 		return;
 	}
 
 	last_accessed = damon_pa_young(r->sampling_addr, &last_folio_sz);
-	if (last_accessed)
-		r->nr_accesses++;
+	damon_update_region_access_rate(r, last_accessed);
 
 	last_addr = r->sampling_addr;
 }
diff --git a/mm/damon/vaddr.c b/mm/damon/vaddr.c
index cf8a9fc5c9d1..53371bbec605 100644
--- a/mm/damon/vaddr.c
+++ b/mm/damon/vaddr.c
@@ -567,14 +567,12 @@ static void __damon_va_check_access(struct mm_struct *mm,
 	/* If the region is in the last checked page, reuse the result */
 	if (same_target && (ALIGN_DOWN(last_addr, last_folio_sz) ==
 				ALIGN_DOWN(r->sampling_addr, last_folio_sz))) {
-		if (last_accessed)
-			r->nr_accesses++;
+		damon_update_region_access_rate(r, last_accessed);
 		return;
 	}
 
 	last_accessed = damon_va_young(mm, r->sampling_addr, &last_folio_sz);
-	if (last_accessed)
-		r->nr_accesses++;
+	damon_update_region_access_rate(r, last_accessed);
 
 	last_addr = r->sampling_addr;
 }