[PATCH v2 03/14] powerpc: assert_pte_locked() use pte_offset_map_ro_nolock()
From: Qi Zheng <hidden>
Date: 2024-08-22 07:14:06
Also in:
linux-mm, linuxppc-dev, lkml
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
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 <redacted> --- arch/powerpc/mm/pgtable.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
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);
--
2.20.1