Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit a6f197f8 authored by Aneesh Kumar K.V's avatar Aneesh Kumar K.V Committed by Dan Williams
Browse files

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: default avatarMichael Ellerman <mpe@ellerman.id.au>
Signed-off-by: default avatarAneesh 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: default avatarDan Williams <dan.j.williams@intel.com>
parent 5b26db95

arch/powerpc/include/asm/book3s/64/radix.h

+7 −1
Original line number Diff line number Diff line
@@ -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,

arch/powerpc/mm/book3s64/hash_pgtable.c

+2 −0
Original line number Diff line number Diff line
@@ -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

arch/powerpc/mm/book3s64/radix_pgtable.c

+0 −7
Original line number Diff line number Diff line
@@ -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,