Btrfs: get right arguments for btrfs_wait_ordered_range

btrfs_wait_ordered_range expects for 'len' instead of 'end'.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 9ab1bed..d2df981 100644 (file)
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1562,7 +1562,7 @@ int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
         * range being left.
         */
        atomic_inc(&root->log_batch);
-       btrfs_wait_ordered_range(inode, start, end);
+       btrfs_wait_ordered_range(inode, start, end - start + 1);
        atomic_inc(&root->log_batch);
 
        /*