Cache the swap_node() in a local variable to avoid possible multiple call
to swap_node(), though compiler may do this for us.
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
---
mm/swapfile.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 20012c0c0252..cd66b50f0490 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -2454,7 +2454,7 @@ static void setup_swap_info(struct swap_info_struct *p, int prio,
unsigned char *swap_map,
struct swap_cluster_info *cluster_info)
{
- int i;
+ int i, node;
if (prio >= 0)
p->prio = prio;
@@ -2465,11 +2465,12 @@ static void setup_swap_info(struct swap_info_struct *p, int prio,
* low-to-high, while swap ordering is high-to-low
*/
p->list.prio = -p->prio;
+ node = swap_node(p);
for_each_node(i) {
if (p->prio >= 0)
p->avail_lists[i].prio = -p->prio;
else {
- if (swap_node(p) == i)
+ if (node == i)
p->avail_lists[i].prio = 1;
else
p->avail_lists[i].prio = -p->prio;
--
2.19.1
