Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable

[pandora-kernel.git] / fs / btrfs / inode.c

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 1cff528..06d8db5 100644 (file)
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4365,8 +4365,9 @@ static void btrfs_invalidatepage(struct page *page, unsigned long offset)
  * beyond EOF, then the page is guaranteed safe against truncation until we
  * unlock the page.
  */
-int btrfs_page_mkwrite(struct vm_area_struct *vma, struct page *page)
+int btrfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
 {
+       struct page *page = vmf->page;
        struct inode *inode = fdentry(vma->vm_file)->d_inode;
        struct btrfs_root *root = BTRFS_I(inode)->root;
        struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
@@ -4379,10 +4380,15 @@ int btrfs_page_mkwrite(struct vm_area_struct *vma, struct page *page)
        u64 page_end;
 
        ret = btrfs_check_data_free_space(root, inode, PAGE_CACHE_SIZE);
-       if (ret)
+       if (ret) {
+               if (ret == -ENOMEM)
+                       ret = VM_FAULT_OOM;
+               else /* -ENOSPC, -EIO, etc */
+                       ret = VM_FAULT_SIGBUS;
                goto out;
+       }
 
-       ret = -EINVAL;
+       ret = VM_FAULT_NOPAGE; /* make the VM retry the fault */
 again:
        lock_page(page);
        size = i_size_read(inode);