Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
        /* ocfs2_file_write_iter will get i_mutex, so we need not lock if we
         * are in that context. */
        if (dwc->dw_writer_pid != task_pid_nr(current)) {
-               mutex_lock(&inode->i_mutex);
+               inode_lock(inode);
                locked = 1;
        }
 
                ocfs2_free_alloc_context(meta_ac);
        ocfs2_run_deallocs(osb, &dealloc);
        if (locked)
-               mutex_unlock(&inode->i_mutex);
+               inode_unlock(inode);
        ocfs2_dio_free_write_ctx(inode, dwc);
 }