[PATCH 2/3] staging: lowmemorykiller: count anon pages only when we have swap devices
From: Ganesh Mahendran
Date: Tue Jun 21 2016 - 01:31:48 EST
lowmem_count() should only count anon pages when we have swap device.
Signed-off-by: Ganesh Mahendran <opensource.ganesh@xxxxxxxxx>
---
drivers/staging/android/lowmemorykiller.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/android/lowmemorykiller.c b/drivers/staging/android/lowmemorykiller.c
index 6da9260..1d8de47 100644
--- a/drivers/staging/android/lowmemorykiller.c
+++ b/drivers/staging/android/lowmemorykiller.c
@@ -73,10 +73,14 @@ static unsigned long lowmem_deathpending_timeout;
static unsigned long lowmem_count(struct shrinker *s,
struct shrink_control *sc)
{
- return global_page_state(NR_ACTIVE_ANON) +
- global_page_state(NR_ACTIVE_FILE) +
- global_page_state(NR_INACTIVE_ANON) +
- global_page_state(NR_INACTIVE_FILE);
+ unsigned long freeable = global_page_state(NR_ACTIVE_FILE) +
+ global_page_state(NR_INACTIVE_FILE);
+
+ if (get_nr_swap_pages() > 0)
+ freeable += global_page_state(NR_ACTIVE_ANON) +
+ global_page_state(NR_INACTIVE_ANON);
+
+ return freeable;
}
static unsigned long lowmem_scan(struct shrinker *s, struct shrink_control *sc)
--
1.9.1