This patch from David Ahern was applied in the newest net-next.

-------- Forwarded message -------
From: "David Ahern" <dsahern@gmail.com>
To: "Ioana Ciornei" <ciorneiioana@gmail.com>, "Yajun Deng" <yajun.deng@linux.dev>
CC: davem@davemloft.net, kuba@kernel.org, yoshfuji@linux-ipv6.org, dsahern@kernel.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-decnet-user@lists.sourceforge.net
Sent: August 2, 2021 10:36 PM
Subject: Re: [PATCH] net: convert fib_treeref from int to refcount_t
On 8/2/21 7:37 AM, Ioana Ciornei wrote:

> Unfortunately, with this patch applied I get into the following WARNINGs
> when booting over NFS:

Can you test the attached?

Thanks,