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-rw-r--r--arch/x86/mm/pgtable_32.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
index 2f9e9afcb9f4..76e4f4d26272 100644
--- a/arch/x86/mm/pgtable_32.c
+++ b/arch/x86/mm/pgtable_32.c
@@ -381,3 +381,10 @@ void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
}
#endif
+
+int pmd_bad(pmd_t pmd)
+{
+ WARN_ON_ONCE(pmd_bad_v1(pmd) != pmd_bad_v2(pmd));
+
+ return pmd_bad_v1(pmd);
+}
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