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Commit 42e2e457 authored by Yaowei Bai's avatar Yaowei Bai Committed by Linus Torvalds
Browse files

mm/vmscan: make inactive_anon/file_is_low return bool 



Make inactive_anon/file_is_low return bool due to these particular
functions only using either one or zero as their return value.

No functional change.

Signed-off-by: default avatarYaowei Bai <bywxiaobai@163.com>
Acked-by: default avatarJohannes Weiner <hannes@cmpxchg.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 80f73b4b

mm/vmscan.c

+7 −7
Original line number Diff line number Diff line
@@ -1859,7 +1859,7 @@ static void shrink_active_list(unsigned long nr_to_scan, 
}



#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;
@@ -1876,14 +1876,14 @@ static int inactive_anon_is_low_global(struct zone *zone) 
 * 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);
@@ -1891,9 +1891,9 @@ static int inactive_anon_is_low(struct lruvec *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
@@ -1911,7 +1911,7 @@ static inline int inactive_anon_is_low(struct lruvec *lruvec) 
 * 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;
@@ -1922,7 +1922,7 @@ static int inactive_file_is_low(struct lruvec *lruvec) 
	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);