[PATCH] fix CONFIG_SWAP=n build

mm/rmap.c contains an open-coded reference to swap_token_default_timeout
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/linux/swap.h

@@ -269,6 +269,7 @@ static inline void put_swap_token(struct mm_struct *mm)
 #define move_from_swap_cache(p, i, m)		1
 #define __delete_from_swap_cache(p)		/*NOTHING*/
 #define delete_from_swap_cache(p)		/*NOTHING*/
+#define swap_token_default_timeout		0
 
 static inline int remove_exclusive_swap_page(struct page *p)
 {