Queued for loongarch-next, thanks.

Huacai

On Wed, Sep 6, 2023 at 5:20 PM Hongchen Zhang zhanghongchen@loongson.cn wrote:

When I do LTP test, LTP test case ksm06 caused panic at break_ksm_pmd_entry -> pmd_leaf (Huge page table but False) -> pte_present (panic)

The reason is pmd_leaf is not defined, So like commit 501b81046701 ("mips: mm: add p?d_leaf() definitions") add p?d_leaf() definition for LoongArch.

Fixes: 09cfefb7fa70 ("LoongArch: Add memory management") Cc: stable@vger.kernel.org Signed-off-by: Hongchen Zhang zhanghongchen@loongson.cn

---

v2->v3: add Cc: stable@vger.kernel.org v1->v2: add Fixes in commit message

---

arch/loongarch/include/asm/pgtable.h | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/arch/loongarch/include/asm/pgtable.h b/arch/loongarch/include/asm/pgtable.h index 370c6568ceb8..ea54653b7aab 100644 --- a/arch/loongarch/include/asm/pgtable.h +++ b/arch/loongarch/include/asm/pgtable.h @@ -243,6 +243,9 @@ static inline void pmd_clear(pmd_t *pmdp)

#define pmd_phys(pmd) PHYSADDR(pmd_val(pmd))

+#define pmd_leaf(pmd) ((pmd_val(pmd) & _PAGE_HUGE) != 0) +#define pud_leaf(pud) ((pud_val(pud) & _PAGE_HUGE) != 0)

#ifndef CONFIG_TRANSPARENT_HUGEPAGE #define pmd_page(pmd) (pfn_to_page(pmd_phys(pmd) >> PAGE_SHIFT))

#endif /* CONFIG_TRANSPARENT_HUGEPAGE */

2.33.0