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authorJack Steiner <steiner@sgi.com>2009-12-15 19:48:17 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-16 10:20:17 -0500
commit74ccd09526a0254c362adcc6c862354d724aa803 (patch)
treea68e4a3be9d83eb7e6bb47eba131e73bd06684d8 /drivers/misc/sgi-gru
parent0cd2b0813aac660f5f7a6574083157a70c152dd5 (diff)
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>
Diffstat (limited to 'drivers/misc/sgi-gru')
-rw-r--r--drivers/misc/sgi-gru/grufault.c7
1 files 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,
192{ 192{
193 struct page *page; 193 struct page *page;
194 194
195 /* ZZZ Need to handle HUGE pages */ 195#ifdef CONFIG_HUGETLB_PAGE
196 if (is_vm_hugetlb_page(vma)) 196 *pageshift = is_vm_hugetlb_page(vma) ? HPAGE_SHIFT : PAGE_SHIFT;
197 return -EFAULT; 197#else
198 *pageshift = PAGE_SHIFT; 198 *pageshift = PAGE_SHIFT;
199#endif
199 if (get_user_pages 200 if (get_user_pages
200 (current, current->mm, vaddr, 1, write, 0, &page, NULL) <= 0) 201 (current, current->mm, vaddr, 1, write, 0, &page, NULL) <= 0)
201 return -EFAULT; 202 return -EFAULT;