From 74ccd09526a0254c362adcc6c862354d724aa803 Mon Sep 17 00:00:00 2001 From: Jack Steiner Date: Tue, 15 Dec 2009 16:48:17 -0800 Subject: [PATCH] gru: add hugepage support Add support for hugepages. Easier than I originally thought. Signed-off-by: Jack Steiner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/misc/sgi-gru/grufault.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/misc/sgi-gru/grufault.c b/drivers/misc/sgi-gru/grufault.c index b56009f9203a..929d6073e600 100644 --- a/drivers/misc/sgi-gru/grufault.c +++ b/drivers/misc/sgi-gru/grufault.c @@ -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; -- 2.30.2