linux-kernel - Re: [PATCH 5.4 097/122] xfrm: policy: Read seqcount outside of rcu-read side in xfrm_policy_lookup

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Date:   Fri, 16 Jul 2021 19:47:01 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Florian Westphal <fw@...len.de>
Cc:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        Varad Gautam <varad.gautam@...e.com>,
        linux-rt-users <linux-rt-users@...r.kernel.org>,
        netdev@...r.kernel.org,
        Steffen Klassert <steffen.klassert@...unet.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        "Ahmed S. Darwish" <a.darwish@...utronix.de>
Subject: Re: [PATCH 5.4 097/122] xfrm: policy: Read seqcount outside of
 rcu-read side in xfrm_policy_lookup_bytype

On Thu, Jul 15, 2021 at 08:54:47PM +0200, Florian Westphal wrote:
> Greg Kroah-Hartman <gregkh@...uxfoundation.org> wrote:
> > From: Varad Gautam <varad.gautam@...e.com>
> > 
> > commit d7b0408934c749f546b01f2b33d07421a49b6f3e upstream.
> 
> This patch has been reverted in the ipsec tree, the problem was then
> addressed via 2580d3f40022642452dd8422bfb8c22e54cf84bb
> ("xfrm: Fix RCU vs hash_resize_mutex lock inversion").
> 
> AFAICS its not in mainline yet.

Thank you, I have now dropped this from everywhere.

greg k-h