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gru: add hugepage support 

Add support for hugepages. Easier than I originally thought.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Jack Steiner 2009-12-15 16:48:17 -08:00 committed by Linus Torvalds
parent 0cd2b0813a
commit 74ccd09526
1 changed files with 4 additions and 3 deletions
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7
drivers/misc/sgi-gru/grufault.c
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@ -192,10 +192,11 @@ static int non_atomic_pte_lookup(struct vm_area_struct *vma,
{
struct page *page;
/* ZZZ Need to handle HUGE pages */
if (is_vm_hugetlb_page(vma))
return -EFAULT;
#ifdef CONFIG_HUGETLB_PAGE
*pageshift = is_vm_hugetlb_page(vma) ? HPAGE_SHIFT : PAGE_SHIFT;
#else
*pageshift = PAGE_SHIFT;
#endif
if (get_user_pages
(current, current->mm, vaddr, 1, write, 0, &page, NULL) <= 0)
return -EFAULT;