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authorYaowei Bai <bywxiaobai@163.com>2015-11-06 05:47:36 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-11-06 06:34:48 +0300
commit42e2e45777a8c2ec32b6a3c3d81a7d454f6afb6d (patch)
tree8f2f5d386d295904c6e320a93de1dbeb6de68581
parent80f73b4b71f767f7fcd85f68be18af7795904484 (diff)
downloadlinux-42e2e45777a8c2ec32b6a3c3d81a7d454f6afb6d.tar.xz
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: Yaowei Bai <bywxiaobai@163.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--mm/vmscan.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 773fc8db75d2..38d04810e0ee 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -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);