diff mbox series

[v3,03/14] powerpc: assert_pte_locked() use pte_offset_map_ro_nolock()

Message ID 20240904084022.32728-4-zhengqi.arch@bytedance.com (mailing list archive)
State New, archived
Headers show
Series introduce pte_offset_map_{ro|rw}_nolock() | expand

Commit Message

Qi Zheng Sept. 4, 2024, 8:40 a.m. UTC 
In assert_pte_locked(), we just get the ptl and assert if it was already
held, so convert it to using pte_offset_map_ro_nolock().

Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Muchun Song <muchun.song@linux.dev>
---
 arch/powerpc/mm/pgtable.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arch/powerpc/mm/pgtable.c b/arch/powerpc/mm/pgtable.c
index 7316396e452d8..61df5aed79894 100644
--- a/arch/powerpc/mm/pgtable.c
+++ b/arch/powerpc/mm/pgtable.c
@@ -398,7 +398,7 @@  void assert_pte_locked(struct mm_struct *mm, unsigned long addr)
 	 */
 	if (pmd_none(*pmd))
 		return;
-	pte = pte_offset_map_nolock(mm, pmd, addr, &ptl);
+	pte = pte_offset_map_ro_nolock(mm, pmd, addr, &ptl);
 	BUG_ON(!pte);
 	assert_spin_locked(ptl);
 	pte_unmap(pte);