[PATCH RFC v2 08/20] mm: vmscan: remove stack copy address of pud pass in wallk_pud_range()

The behaviour of pXdp_get() will change with generic compile-time folded
page tables. To prepare for that, replace passing the address of a stack
copy of a pXd to walk_pmd_range() with passing the pud pointer directly,
allowing folded entries to be ignored.

There should be no functional change.

Signed-off-by: Yeoreum Yun <[email protected]>
---
 mm/vmscan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/vmscan.c b/mm/vmscan.c
index 06e103f9781e..0c9c4ac89e09 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -3727,7 +3727,7 @@ static int walk_pud_range(p4d_t *p4d, unsigned long start, unsigned long end,
 		if (!pud_present(val) || WARN_ON_ONCE(pud_leaf(val)))
 			continue;
 
-		walk_pmd_range(&val, addr, next, args);
+		walk_pmd_range(pud + i, addr, next, args);
 
 		if (need_resched() || walk->batched >= MAX_LRU_BATCH) {
 			end = (addr | ~PUD_MASK) + 1;

-- 
2.43.0