[PATCH 6.4 668/737] LoongArch: mm: Add p?d_leaf() definitions

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6.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Hongchen Zhang <zhanghongchen@xxxxxxxxxxx>

commit 303be4b33562a5b689261ced1616bf16ad49efa7 upstream.

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@xxxxxxxxxxxxxxx
Acked-by: David Hildenbrand <david@xxxxxxxxxx>
Signed-off-by: Hongchen Zhang <zhanghongchen@xxxxxxxxxxx>
Signed-off-by: Huacai Chen <chenhuacai@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 arch/loongarch/include/asm/pgtable.h |    3 +++
 1 file changed, 3 insertions(+)

--- a/arch/loongarch/include/asm/pgtable.h
+++ b/arch/loongarch/include/asm/pgtable.h
@@ -593,6 +593,9 @@ static inline long pmd_protnone(pmd_t pm
 }
 #endif /* CONFIG_NUMA_BALANCING */
 
+#define pmd_leaf(pmd)		((pmd_val(pmd) & _PAGE_HUGE) != 0)
+#define pud_leaf(pud)		((pud_val(pud) & _PAGE_HUGE) != 0)
+
 /*
  * We provide our own get_unmapped area to cope with the virtual aliasing
  * constraints placed on us by the cache architecture.





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