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 3992bd5..bc12b0a 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -388,6 +388,10 @@ static struct page *alloc_huge_page(struct vm_area_struct *vma, unsigned long addr) { struct page *page; + struct address_space *mapping = vma->vm_file->f_mapping; + + if (hugetlb_get_quota(mapping)) + return ERR_PTR(-VM_FAULT_SIGBUS); if (vma->vm_flags & VM_MAYSHARE) page = alloc_huge_page_shared(vma, addr); @@ -395,9 +399,10 @@ static struct page *alloc_huge_page(struct vm_area_struct *vma, page = alloc_huge_page_private(vma, addr); if (page) { set_page_refcounted(page); - set_page_private(page, (unsigned long) vma->vm_file->f_mapping); - } - return page; + set_page_private(page, (unsigned long) mapping); + return page; + } else + return ERR_PTR(-VM_FAULT_OOM); } static int __init hugetlb_init(void) @@ -737,15 +742,13 @@ static int hugetlb_cow(struct mm_struct *mm, struct vm_area_struct *vma, set_huge_ptep_writable(vma, address, ptep); return 0; } - if (hugetlb_get_quota(vma->vm_file->f_mapping)) - return VM_FAULT_SIGBUS; page_cache_get(old_page); new_page = alloc_huge_page(vma, address); - if (!new_page) { + if (IS_ERR(new_page)) { page_cache_release(old_page); - return VM_FAULT_OOM; + return -PTR_ERR(new_page); } spin_unlock(&mm->page_table_lock); @@ -789,12 +792,9 @@ retry: size = i_size_read(mapping->host) >> HPAGE_SHIFT; if (idx >= size) goto out; - if (hugetlb_get_quota(mapping)) - goto out; page = alloc_huge_page(vma, address); - if (!page) { - hugetlb_put_quota(mapping); - ret = VM_FAULT_OOM; + if (IS_ERR(page)) { + ret = -PTR_ERR(page); goto out; } clear_huge_page(page, address); |
