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LoongArch: mm: Add p?d_leaf() definitions

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commit 303be4b335 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 501b810467
("mips: mm: add p?d_leaf() definitions") add p?d_leaf() definition for
LoongArch.

Fixes: 09cfefb7fa ("LoongArch: Add memory management")
Cc: stable@vger.kernel.org
Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Hongchen Zhang <zhanghongchen@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Hongchen Zhang
2023-09-06 22:53:09 +08:00
committed by Greg Kroah-Hartman
parent 5a8b2c1665
commit cc9bf2d62f
1 changed files with 3 additions and 0 deletions
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3
arch/loongarch/include/asm/pgtable.h
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@@ -560,6 +560,9 @@ static inline long pmd_protnone(pmd_t pmd)
} }
#endif /* CONFIG_NUMA_BALANCING */ #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 * We provide our own get_unmapped area to cope with the virtual aliasing
* constraints placed on us by the cache architecture. * constraints placed on us by the cache architecture.