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powerpc/mm: Fix vma_mmu_pagesize() for radix

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Radix doesn't use the slice framework to find the page size. Hence use
vma to find the page size.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Aneesh Kumar K.V 2016-04-29 23:26:24 +10:00 committed by Michael Ellerman
parent 5ed7ecd08a
commit 2f5f0dfd1e
1 changed files with 4 additions and 4 deletions
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8
arch/powerpc/mm/hugetlbpage.c
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@ -719,14 +719,14 @@ unsigned long vma_mmu_pagesize(struct vm_area_struct *vma)
{
#ifdef CONFIG_PPC_MM_SLICES
unsigned int psize = get_slice_psize(vma->vm_mm, vma->vm_start);
return 1UL << mmu_psize_to_shift(psize);
#else
/* With radix we don't use slice, so derive it from vma*/
if (!radix_enabled())
return 1UL << mmu_psize_to_shift(psize);
#endif
if (!is_vm_hugetlb_page(vma))
return PAGE_SIZE;
return huge_page_size(hstate_vma(vma));
#endif
}
static inline bool is_power_of_4(unsigned long x)