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-rw-r--r--include/asm-generic/pgtable.h14
-rw-r--r--mm/pgtable-generic.c11
2 files changed, 7 insertions, 18 deletions
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index f1eddf71dd0c..31b6188df221 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -87,14 +87,6 @@ static inline pmd_t pmdp_get_and_clear(struct mm_struct *mm,
pmd_clear(mm, address, pmdp);
return pmd;
})
-#else /* CONFIG_TRANSPARENT_HUGEPAGE */
-static inline pmd_t pmdp_get_and_clear(struct mm_struct *mm,
- unsigned long address,
- pmd_t *pmdp)
-{
- BUG();
- return __pmd(0);
-}
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
#endif
@@ -163,9 +155,9 @@ static inline void pmdp_set_wrprotect(struct mm_struct *mm,
#endif
#ifndef __HAVE_ARCH_PMDP_SPLITTING_FLUSH
-extern pmd_t pmdp_clear_flush(struct vm_area_struct *vma,
- unsigned long address,
- pmd_t *pmdp);
+extern pmd_t pmdp_splitting_flush(struct vm_area_struct *vma,
+ unsigned long address,
+ pmd_t *pmdp);
#endif
#ifndef __HAVE_ARCH_PTE_SAME
diff --git a/mm/pgtable-generic.c b/mm/pgtable-generic.c
index d030548047e2..0369f5b3ba1b 100644
--- a/mm/pgtable-generic.c
+++ b/mm/pgtable-generic.c
@@ -92,32 +92,29 @@ pte_t ptep_clear_flush(struct vm_area_struct *vma, unsigned long address,
#endif
#ifndef __HAVE_ARCH_PMDP_CLEAR_FLUSH
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
pmd_t pmdp_clear_flush(struct vm_area_struct *vma, unsigned long address,
pmd_t *pmdp)
{
pmd_t pmd;
-#ifndef CONFIG_TRANSPARENT_HUGEPAGE
- BUG();
-#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
VM_BUG_ON(address & ~HPAGE_PMD_MASK);
pmd = pmdp_get_and_clear(vma->vm_mm, address, pmdp);
flush_tlb_range(vma, address, address + HPAGE_PMD_SIZE);
return pmd;
}
+#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
#endif
#ifndef __HAVE_ARCH_PMDP_SPLITTING_FLUSH
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
pmd_t pmdp_splitting_flush(struct vm_area_struct *vma, unsigned long address,
pmd_t *pmdp)
{
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
pmd_t pmd = pmd_mksplitting(*pmdp);
VM_BUG_ON(address & ~HPAGE_PMD_MASK);
set_pmd_at(vma->vm_mm, address, pmdp, pmd);
/* tlb flush only to serialize against gup-fast */
flush_tlb_range(vma, address, address + HPAGE_PMD_SIZE);
-#else /* CONFIG_TRANSPARENT_HUGEPAGE */
- BUG();
-#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
}
+#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
#endif