+/* linux/mm/thrash.c */
+extern struct mm_struct * swap_token_mm;
+extern void grab_swap_token(void);
+extern void __put_swap_token(struct mm_struct *);
+
+static inline int has_swap_token(struct mm_struct *mm)
+{
+ return (mm == swap_token_mm);
+}
+
+static inline void put_swap_token(struct mm_struct *mm)
+{
+ if (has_swap_token(mm))
+ __put_swap_token(mm);
+}
+