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| author | Jack Steiner <steiner@sgi.com> | 2009-12-15 16:48:17 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-16 07:20:17 -0800 |
| commit | 74ccd09526a0254c362adcc6c862354d724aa803 (patch) | |
| tree | a68e4a3be9d83eb7e6bb47eba131e73bd06684d8 /drivers/misc | |
| parent | 0cd2b0813aac660f5f7a6574083157a70c152dd5 (diff) | |
| download | linux-74ccd09526a0254c362adcc6c862354d724aa803.tar.gz linux-74ccd09526a0254c362adcc6c862354d724aa803.tar.bz2 linux-74ccd09526a0254c362adcc6c862354d724aa803.zip | |
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')
| -rw-r--r-- | drivers/misc/sgi-gru/grufault.c | 7 |
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, { 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; |