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-rw-r--r--mm/vmscan.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c
index d303b60f4c2a..890f54184d9a 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1207,13 +1207,16 @@ int isolate_lru_page(struct page *page)
{
int ret = -EBUSY;
+ VM_BUG_ON(!page_count(page));
+
if (PageLRU(page)) {
struct zone *zone = page_zone(page);
spin_lock_irq(&zone->lru_lock);
- if (PageLRU(page) && get_page_unless_zero(page)) {
+ if (PageLRU(page)) {
int lru = page_lru(page);
ret = 0;
+ get_page(page);
ClearPageLRU(page);
del_page_from_lru_list(zone, page, lru);