From: Florian Westphal <fw@strlen.de>
To: Chenguang Zhao <zhaochenguang@kylinos.cn>
Cc: Pablo Neira Ayuso <pablo@netfilter.org>,
Jozsef Kadlecsik <kadlec@netfilter.org>,
Phil Sutter <phil@nwl.cc>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Simon Horman <horms@kernel.org>,
netfilter-devel@vger.kernel.org, coreteam@netfilter.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH linux] netfilter: conntrack: Add missing modification about data-race around ct->timeout
Date: Mon, 17 Nov 2025 12:02:45 +0100 [thread overview]
Message-ID: <aRsA1a-1_NWsYst3@strlen.de> (raw)
In-Reply-To: <20251117085632.429735-1-zhaochenguang@kylinos.cn>
Chenguang Zhao <zhaochenguang@kylinos.cn> wrote:
> Add missing modification about data-race around ct->timeout
This could use a bit more verbose explanation.
> weird delay cases. */
> - ct->timeout += nfct_time_stamp;
> + WRITE_ONCE(ct->timeout, ct->timeout + nfct_time_stamp);
~~~~~~~~~~~
Shouldn't that be
WRITE_ONCE(ct->timeout, READ_ONCE(ct->timeout) + nfct_time_stamp); ?
Furthermore, patch subject should list either [nf] or [nf-next] to
indicate the tree you want this patch applied to.
prev parent reply other threads:[~2025-11-17 11:02 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-17 8:56 [PATCH linux] netfilter: conntrack: Add missing modification about data-race around ct->timeout Chenguang Zhao
2025-11-17 11:02 ` Florian Westphal [this message]
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