rem: file_write(struct file_descriptor *descriptor, const void *buffer, off_t pos, size_t *length)
add: file_write(struct file_descriptor *descriptor, off_t pos, const void *buffer, size_t *length)
context: file_write(struct file_descriptor *descriptor, const void *buffer, off_t pos, size_t *length){	struct vnode *vnode = descriptor->vnode;	FUNCTION(("file_write: buf %p, pos %Ld, len %p\n", buffer, pos, length));	return FS_CALL(vnode,fs_write)(vnode->mount->cookie, vnode->private_node, descriptor->cookie, buffer, pos, length);}