swap: use an array for the LRU pagevecs

Turn the pagevecs into an array just like the LRUs.  This significantly
cleans up the source code and reduces the size of the kernel by about 13kB
after all the LRU lists have been created further down in the split VM
patch series.

Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 10 deletions

diff --git a/mm/migrate.c b/mm/migrate.c
index da73742e52a5..ad15b5ef2599 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -55,16 +55,7 @@ int migrate_prep(void)
 
 static inline void move_to_lru(struct page *page)
 {
-        if (PageActive(page)) {
-                /*
-                 * lru_cache_add_active checks that
-                 * the PG_active bit is off.
-                 */
-                ClearPageActive(page);
-                lru_cache_add_active(page);
-        } else {
-                lru_cache_add(page);
-        }
+        lru_cache_add_lru(page, page_lru(page));
         put_page(page);
 }