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Subject: Re: [PATCH 1/1] net: ipv6: flowlabel: defer exclusive option free
 until
 RCU teardown
From: patchwork-bot+netdevbpf@kernel.org
Message-Id: 
 <177500940754.3032542.13943967235330405291.git-patchwork-notify@kernel.org>
Date: Wed, 01 Apr 2026 02:10:07 +0000
References: 
 <07351f0ec47bcee289576f39f9354f4a64add6e4.1774855883.git.zcliangcn@gmail.com>
In-Reply-To: 
 <07351f0ec47bcee289576f39f9354f4a64add6e4.1774855883.git.zcliangcn@gmail.com>
To: Yang Yang <n05ec@lzu.edu.cn>
Cc: security@kernel.org, davem@davemloft.net, dsahern@kernel.org,
 edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org,
 afaerber@suse.de, mani@kernel.org, yoshfuji@linux-ipv6.org,
 yifanwucs@gmail.com, tomapufckgml@gmail.com, yuantan098@gmail.com,
 bird@lzu.edu.cn, enjou1224z@gmail.com, zcliangcn@gmail.com,
 netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
 linux-actions@lists.infradead.org, linux-kernel@vger.kernel.org

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:

On Mon, 30 Mar 2026 16:46:24 +0800 you wrote:
> From: Zhengchuan Liang <zcliangcn@gmail.com>
> 
> `ip6fl_seq_show()` walks the global flowlabel hash under the seq-file
> RCU read-side lock and prints `fl->opt->opt_nflen` when an option block
> is present.
> 
> Exclusive flowlabels currently free `fl->opt` as soon as `fl->users`
> drops to zero in `fl_release()`. However, the surrounding
> `struct ip6_flowlabel` remains visible in the global hash table until
> later garbage collection removes it and `fl_free_rcu()` finally tears it
> down.
> 
> [...]

Here is the summary with links:
  - [1/1] net: ipv6: flowlabel: defer exclusive option free until RCU teardown
    https://git.kernel.org/netdev/net/c/9ca562bb8e66

You are awesome, thank you!
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