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powerpc/book3e: Change hugetlb preload to take vma argument

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This avoids an extra find_vma() and is less error-prone.

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
2011-11-28 14:43:33 +00:00
committed by Benjamin Herrenschmidt
parent 1257a76547
commit d93e4d7d72
3 changed files with 9 additions and 4 deletions
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8
arch/powerpc/mm/hugetlbpage-book3e.c
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@@ -37,12 +37,14 @@ static inline int book3e_tlb_exists(unsigned long ea, unsigned long pid)
return found;
}
void book3e_hugetlb_preload(struct mm_struct *mm, unsigned long ea, pte_t pte)
void book3e_hugetlb_preload(struct vm_area_struct *vma, unsigned long ea,
pte_t pte)
{
unsigned long mas1, mas2;
u64 mas7_3;
unsigned long psize, tsize, shift;
unsigned long flags;
struct mm_struct *mm;
#ifdef CONFIG_PPC_FSL_BOOK3E
int index, ncams;
@@ -51,12 +53,14 @@ void book3e_hugetlb_preload(struct mm_struct *mm, unsigned long ea, pte_t pte)
if (unlikely(is_kernel_addr(ea)))
return;
mm = vma->vm_mm;
#ifdef CONFIG_PPC_MM_SLICES
psize = get_slice_psize(mm, ea);
tsize = mmu_get_tsize(psize);
shift = mmu_psize_defs[psize].shift;
#else
psize = vma_mmu_pagesize(find_vma(mm, ea));
psize = vma_mmu_pagesize(vma);
shift = __ilog2(psize);
tsize = shift - 10;
#endif