Now we are sure there is at lease one page on page_list, so it is safe
to get the nid of it. This means it is not necessary to use NUMA_NO_NODE
as an indicator for the beginning of iteration or a page on different
node.
Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx>
---
mm/vmscan.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 3a36ebd6295d..f9998cba236f 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -2519,7 +2519,7 @@ static void shrink_active_list(unsigned long nr_to_scan,
unsigned long reclaim_pages(struct list_head *page_list)
{
- int nid = NUMA_NO_NODE;
+ int nid;
unsigned int nr_reclaimed = 0;
LIST_HEAD(node_page_list);
struct reclaim_stat dummy_stat;
@@ -2538,11 +2538,9 @@ unsigned long reclaim_pages(struct list_head *page_list)
noreclaim_flag = memalloc_noreclaim_save();
+ nid = page_to_nid(lru_to_page(page_list));
do {
page = lru_to_page(page_list);
- if (nid == NUMA_NO_NODE) {
- nid = page_to_nid(page);
- }
if (nid == page_to_nid(page)) {
ClearPageActive(page);
@@ -2559,7 +2557,7 @@ unsigned long reclaim_pages(struct list_head *page_list)
putback_lru_page(page);
}
- nid = NUMA_NO_NODE;
+ nid = page_to_nid(lru_to_page(page_list));
} while (!list_empty(page_list));
nr_reclaimed += shrink_page_list(&node_page_list,
--
2.33.1
