In later patch, we want to use hash_transparent_hugepage() in a kernel module.
Export two related functions.
Acked-by: Michael Ellerman <m...@ellerman.id.au>
Signed-off-by: Aneesh Kumar K.V <aneesh.ku...@linux.ibm.com>
---
arch/powerpc/include/asm/book3s/64/radix.h | 8 +++++++-
arch/powerpc/mm/book3s64/hash_pgtable.c | 2 ++
arch/powerpc/mm/book3s64/radix_pgtable.c | 7 -------
3 files changed, 9 insertions(+), 8 deletions(-)
diff --git a/arch/powerpc/include/asm/book3s/64/radix.h
b/arch/powerpc/include/asm/book3s/64/radix.h
index 574eca33f893..d97db3ad9aae 100644
--- a/arch/powerpc/include/asm/book3s/64/radix.h
+++ b/arch/powerpc/include/asm/book3s/64/radix.h
@@ -254,7 +254,13 @@ extern void radix__pgtable_trans_huge_deposit(struct
mm_struct *mm, pmd_t *pmdp,
extern pgtable_t radix__pgtable_trans_huge_withdraw(struct mm_struct *mm,
pmd_t *pmdp);
extern pmd_t radix__pmdp_huge_get_and_clear(struct mm_struct *mm,
unsigned long addr, pmd_t *pmdp);
-extern int radix__has_transparent_hugepage(void);
+static inline int radix__has_transparent_hugepage(void)
+{
+ /* For radix 2M at PMD level means thp */
+ if (mmu_psize_defs[MMU_PAGE_2M].shift == PMD_SHIFT)
+ return 1;
+ return 0;
+}
#endif
extern int __meminit radix__vmemmap_create_mapping(unsigned long start,
diff --git a/arch/powerpc/mm/book3s64/hash_pgtable.c
b/arch/powerpc/mm/book3s64/hash_pgtable.c
index d1f390ac9cdb..64733b9cb20a 100644
--- a/arch/powerpc/mm/book3s64/hash_pgtable.c
+++ b/arch/powerpc/mm/book3s64/hash_pgtable.c
@@ -406,6 +406,8 @@ int hash__has_transparent_hugepage(void)
return 1;
}
+EXPORT_SYMBOL_GPL(hash__has_transparent_hugepage);
+
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
#ifdef CONFIG_STRICT_KERNEL_RWX
diff --git a/arch/powerpc/mm/book3s64/radix_pgtable.c
b/arch/powerpc/mm/book3s64/radix_pgtable.c
index 3a1fbf9cb8f8..6ee17d09649c 100644
--- a/arch/powerpc/mm/book3s64/radix_pgtable.c
+++ b/arch/powerpc/mm/book3s64/radix_pgtable.c
@@ -1027,13 +1027,6 @@ pmd_t radix__pmdp_huge_get_and_clear(struct mm_struct
*mm,
return old_pmd;
}
-int radix__has_transparent_hugepage(void)
-{
- /* For radix 2M at PMD level means thp */
- if (mmu_psize_defs[MMU_PAGE_2M].shift == PMD_SHIFT)
- return 1;
- return 0;
-}
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
void radix__ptep_set_access_flags(struct vm_area_struct *vma, pte_t *ptep,
--
2.21.0
