diff options
Diffstat (limited to 'mm/hugetlb.c')
-rw-r--r-- | mm/hugetlb.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 3992bd5120e7..bc12b0adfa87 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c | |||
@@ -388,6 +388,10 @@ static struct page *alloc_huge_page(struct vm_area_struct *vma, | |||
388 | unsigned long addr) | 388 | unsigned long addr) |
389 | { | 389 | { |
390 | struct page *page; | 390 | struct page *page; |
391 | struct address_space *mapping = vma->vm_file->f_mapping; | ||
392 | |||
393 | if (hugetlb_get_quota(mapping)) | ||
394 | return ERR_PTR(-VM_FAULT_SIGBUS); | ||
391 | 395 | ||
392 | if (vma->vm_flags & VM_MAYSHARE) | 396 | if (vma->vm_flags & VM_MAYSHARE) |
393 | page = alloc_huge_page_shared(vma, addr); | 397 | page = alloc_huge_page_shared(vma, addr); |
@@ -395,9 +399,10 @@ static struct page *alloc_huge_page(struct vm_area_struct *vma, | |||
395 | page = alloc_huge_page_private(vma, addr); | 399 | page = alloc_huge_page_private(vma, addr); |
396 | if (page) { | 400 | if (page) { |
397 | set_page_refcounted(page); | 401 | set_page_refcounted(page); |
398 | set_page_private(page, (unsigned long) vma->vm_file->f_mapping); | 402 | set_page_private(page, (unsigned long) mapping); |
399 | } | 403 | return page; |
400 | return page; | 404 | } else |
405 | return ERR_PTR(-VM_FAULT_OOM); | ||
401 | } | 406 | } |
402 | 407 | ||
403 | static int __init hugetlb_init(void) | 408 | static int __init hugetlb_init(void) |
@@ -737,15 +742,13 @@ static int hugetlb_cow(struct mm_struct *mm, struct vm_area_struct *vma, | |||
737 | set_huge_ptep_writable(vma, address, ptep); | 742 | set_huge_ptep_writable(vma, address, ptep); |
738 | return 0; | 743 | return 0; |
739 | } | 744 | } |
740 | if (hugetlb_get_quota(vma->vm_file->f_mapping)) | ||
741 | return VM_FAULT_SIGBUS; | ||
742 | 745 | ||
743 | page_cache_get(old_page); | 746 | page_cache_get(old_page); |
744 | new_page = alloc_huge_page(vma, address); | 747 | new_page = alloc_huge_page(vma, address); |
745 | 748 | ||
746 | if (!new_page) { | 749 | if (IS_ERR(new_page)) { |
747 | page_cache_release(old_page); | 750 | page_cache_release(old_page); |
748 | return VM_FAULT_OOM; | 751 | return -PTR_ERR(new_page); |
749 | } | 752 | } |
750 | 753 | ||
751 | spin_unlock(&mm->page_table_lock); | 754 | spin_unlock(&mm->page_table_lock); |
@@ -789,12 +792,9 @@ retry: | |||
789 | size = i_size_read(mapping->host) >> HPAGE_SHIFT; | 792 | size = i_size_read(mapping->host) >> HPAGE_SHIFT; |
790 | if (idx >= size) | 793 | if (idx >= size) |
791 | goto out; | 794 | goto out; |
792 | if (hugetlb_get_quota(mapping)) | ||
793 | goto out; | ||
794 | page = alloc_huge_page(vma, address); | 795 | page = alloc_huge_page(vma, address); |
795 | if (!page) { | 796 | if (IS_ERR(page)) { |
796 | hugetlb_put_quota(mapping); | 797 | ret = -PTR_ERR(page); |
797 | ret = VM_FAULT_OOM; | ||
798 | goto out; | 798 | goto out; |
799 | } | 799 | } |
800 | clear_huge_page(page, address); | 800 | clear_huge_page(page, address); |