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powerpc: Only define HAVE_ARCH_HUGETLB_UNMAPPED_AREA if PPC_MM_SLICES

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If we don't have slices, we should be able to use the generic
hugetlb_get_unmapped_area() code

Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Becky Bruce 2011-10-10 10:50:36 +00:00 committed by Benjamin Herrenschmidt
parent fa8cbaaf5a
commit 7651295944
2 changed files with 4 additions and 4 deletions
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2
arch/powerpc/include/asm/page_64.h
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@ -130,7 +130,9 @@ do { \
#ifdef CONFIG_HUGETLB_PAGE
#ifdef CONFIG_PPC_MM_SLICES
#define HAVE_ARCH_HUGETLB_UNMAPPED_AREA
#endif
#endif /* !CONFIG_HUGETLB_PAGE */

6
arch/powerpc/mm/hugetlbpage.c
View file

@ -697,19 +697,17 @@ int gup_hugepd(hugepd_t *hugepd, unsigned pdshift,
return 1;
}
#ifdef CONFIG_PPC_MM_SLICES
unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
unsigned long len, unsigned long pgoff,
unsigned long flags)
{
#ifdef CONFIG_PPC_MM_SLICES
struct hstate *hstate = hstate_file(file);
int mmu_psize = shift_to_mmu_psize(huge_page_shift(hstate));
return slice_get_unmapped_area(addr, len, flags, mmu_psize, 1, 0);
#else
return get_unmapped_area(file, addr, len, pgoff, flags);
#endif
}
#endif
unsigned long vma_mmu_pagesize(struct vm_area_struct *vma)
{