Btrfs: fix wrong argument for btrfs_lookup_ordered_range

Commit Btrfs: btrfs_page_mkwrite: Reserve space in sectorsized units"
(d0b7da88) did this, but btrfs_lookup_ordered_range expects a 'length'
rather than a 'page_end'.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Reviewed-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 70f932d4b69d07bae8b7e199767a55c4707d1bfa..ac5f8c4042683a7506620a78d6559cdcd70cee44 100644 (file)
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -9038,7 +9038,7 @@ int btrfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
         * we can't set the delalloc bits if there are pending ordered
         * extents.  Drop our locks and wait for them to finish
         */
-       ordered = btrfs_lookup_ordered_range(inode, page_start, page_end);
+       ordered = btrfs_lookup_ordered_range(inode, page_start, PAGE_SIZE);
        if (ordered) {
                unlock_extent_cached(io_tree, page_start, page_end,
                                     &cached_state, GFP_NOFS);