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-rw-r--r--mm/page_alloc.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 07efbc3..bd01501 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4247,7 +4247,8 @@ EXPORT_SYMBOL(free_pages_exact);
* nr_free_zone_pages() counts the number of counts pages which are beyond the
* high watermark within all zones at or below a given zone index. For each
* zone, the number of pages is calculated as:
- * managed_pages - high_pages
+ *
+ * nr_free_zone_pages = managed_pages - high_pages
*/
static unsigned long nr_free_zone_pages(int offset)
{
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