ff_layout_remove_mirror(struct nfs4_ff_layout_mirror *mirror)
{
	struct inode *inode;
	if (mirror->layout == NULL)
		return;
	inode = mirror->layout->plh_inode;
	spin_lock(&inode->i_lock);
	list_del(&mirror->mirrors);
	spin_unlock(&inode->i_lock);
	mirror->layout = NULL;
}