mm/vmscan: make inactive_anon/file_is_low return bool

}

#ifdef CONFIG_SWAP

static int inactive_anon_is_low_global(struct zone *zone)

static bool inactive_anon_is_low_global(struct zone *zone)

{

	unsigned long active, inactive;

 * Returns true if the zone does not have enough inactive anon pages,

 * meaning some active anon pages need to be deactivated.

 */

static int inactive_anon_is_low(struct lruvec *lruvec)

static bool inactive_anon_is_low(struct lruvec *lruvec)

{

	/*

	 * If we don't have swap space, anonymous page deactivation

	 * is pointless.

	 */

	if (!total_swap_pages)

		return 0;

		return false;

	if (!mem_cgroup_disabled())

		return mem_cgroup_inactive_anon_is_low(lruvec);

	return inactive_anon_is_low_global(lruvec_zone(lruvec));

}

#else

static inline int inactive_anon_is_low(struct lruvec *lruvec)

static inline bool inactive_anon_is_low(struct lruvec *lruvec)

{

	return 0;

	return false;

}

#endif

 * This uses a different ratio than the anonymous pages, because

 * the page cache uses a use-once replacement algorithm.

 */

static int inactive_file_is_low(struct lruvec *lruvec)

static bool inactive_file_is_low(struct lruvec *lruvec)

{

	unsigned long inactive;

	unsigned long active;

	return active > inactive;

}

static int inactive_list_is_low(struct lruvec *lruvec, enum lru_list lru)

static bool inactive_list_is_low(struct lruvec *lruvec, enum lru_list lru)

{

	if (is_file_lru(lru))

		return inactive_file_is_low(lruvec);