diff --git a/mm/page_idle.c b/mm/page_idle.c
index d5dd79041484..fd75ae838f42 100644
--- a/mm/page_idle.c
+++ b/mm/page_idle.c
@@ -130,7 +130,7 @@ static ssize_t page_idle_bitmap_read(struct file *file, struct kobject *kobj,
 
 	end_pfn = pfn + count * BITS_PER_BYTE;
 	if (end_pfn > max_pfn)
-		end_pfn = ALIGN(max_pfn, BITMAP_CHUNK_BITS);
+		end_pfn = max_pfn;
 
 	for (; pfn < end_pfn; pfn++) {
 		bit = pfn % BITMAP_CHUNK_BITS;
@@ -175,7 +175,7 @@ static ssize_t page_idle_bitmap_write(struct file *file, struct kobject *kobj,
 
 	end_pfn = pfn + count * BITS_PER_BYTE;
 	if (end_pfn > max_pfn)
-		end_pfn = ALIGN(max_pfn, BITMAP_CHUNK_BITS);
+		end_pfn = max_pfn;
 
 	for (; pfn < end_pfn; pfn++) {
 		bit = pfn % BITMAP_CHUNK_BITS;