diff mbox series

[04/45] mm/pagewalk: Only call pud_entry when we have a pud leaf

Message ID 20240704043132.28501-5-osalvador@suse.de (mailing list archive)
State New
Headers show
Series hugetlb pagewalk unification | expand

Commit Message

Oscar Salvador July 4, 2024, 4:30 a.m. UTC 
Check first whether the pud is leaf one before trying to call pud_entry.

Signed-off-by: Oscar Salvador <osalvador@suse.de>
---
 mm/pagewalk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/mm/pagewalk.c b/mm/pagewalk.c
index eba705def9a0..d93e77411482 100644
--- a/mm/pagewalk.c
+++ b/mm/pagewalk.c
@@ -155,7 +155,7 @@  static int walk_pud_range(p4d_t *p4d, unsigned long addr, unsigned long end,
 
 		walk->action = ACTION_SUBTREE;
 
-		if (ops->pud_entry)
+		if (ops->pud_entry && pud_leaf(*pud))
 			err = ops->pud_entry(pud, addr, next, walk);
 		if (err)
 			break;