Break COW PTE if we want to replace the page which
resides in COW-ed PTE.
Signed-off-by: Chih-En Lin <[email protected]>
---
kernel/events/uprobes.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index d9e357b7e17c9..2956a53da01a1 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -157,7 +157,7 @@ static int __replace_page(struct vm_area_struct *vma, unsigned long addr,
struct folio *old_folio = page_folio(old_page);
struct folio *new_folio;
struct mm_struct *mm = vma->vm_mm;
- DEFINE_FOLIO_VMA_WALK(pvmw, old_folio, vma, addr, 0);
+ DEFINE_FOLIO_VMA_WALK(pvmw, old_folio, vma, addr, PVMW_BREAK_COW_PTE);
int err;
struct mmu_notifier_range range;
--
2.37.3