diff options
| author | Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> | 2019-09-24 09:54:40 +0530 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2019-09-24 10:22:29 -0700 |
| commit | a6f197f889ce0a5fd583674d9fa39259f5c8f72f (patch) | |
| tree | e7bb41f06beb07c5a0c816c9d738b6a3e53be8c5 | |
| parent | 5b26db95fee3f1ce0d096b2de0ac6f3716171093 (diff) | |
powerpc/book3s64: Export has_transparent_hugepage() related functions.
In later patch, we want to use hash_transparent_hugepage() in a kernel module.
Export two related functions.
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Link: https://lore.kernel.org/r/20190924042440.27946-1-aneesh.kumar@linux.ibm.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/radix.h | 8 | ||||
| -rw-r--r-- | arch/powerpc/mm/book3s64/hash_pgtable.c | 2 | ||||
| -rw-r--r-- | 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 e04a839cb5b9..65a6966f1de4 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 b4ca9e95e678..dc7a38f0a45b 100644 --- a/arch/powerpc/mm/book3s64/radix_pgtable.c +++ b/arch/powerpc/mm/book3s64/radix_pgtable.c @@ -1057,13 +1057,6 @@ 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, |