[PATCH] mm: fix comment for ISOLATE_UNMAPPED macro

[Hao Lee]

Both file-backed pages and anonymous pages can be unmapped.
ISOLATE_UNMAPPED is not just for file-backed pages.

Signed-off-by: Hao Lee <haolee.swjtu@xxxxxxxxx>
---
 include/linux/mmzone.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index b1f274b6d3c3..9e47289a4511 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -308,7 +308,7 @@ struct lruvec {
 #endif
 };
 
-/* Isolate unmapped file */
+/* Isolate unmapped pages */
 #define ISOLATE_UNMAPPED	((__force isolate_mode_t)0x2)
 /* Isolate for asynchronous migration */
 #define ISOLATE_ASYNC_MIGRATE	((__force isolate_mode_t)0x4)
-- 
2.14.5