vmscan: fix comments related to shrink_list()

Fix the shrink_list name on some files under mm/ directory.

Signed-off-by: Anderson Briglia <anderson.briglia@indt.org.br>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/mm/swap_state.c b/mm/swap_state.c
index 5f7cf2a..925d5c5 100644
--- a/mm/swap_state.c
+++ b/mm/swap_state.c
@@ -21,7 +21,7 @@
 
 /*
  * swapper_space is a fiction, retained to simplify the path through
- * vmscan's shrink_list, to make sync_page look nicer, and to allow
+ * vmscan's shrink_page_list, to make sync_page look nicer, and to allow
  * future use of radix_tree tags in the swap cache.
  */
 static const struct address_space_operations swap_aops = {