netdev - Re: [Patch net v2] rtnetlink: avoid RCU read lock when holding RTNL

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Message-Id: <162068281064.31911.18118695417131026218.git-patchwork-notify@kernel.org>
Date:   Mon, 10 May 2021 21:40:10 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Cong Wang <xiyou.wangcong@...il.com>
Cc:     netdev@...r.kernel.org, cong.wang@...edance.com,
        syzbot+7d941e89dd48bcf42573@...kaller.appspotmail.com,
        ap420073@...il.com
Subject: Re: [Patch net v2] rtnetlink: avoid RCU read lock when holding RTNL

Hello:

This patch was applied to netdev/net-next.git (refs/heads/master):

On Sat,  8 May 2021 11:00:33 -0700 you wrote:
> From: Cong Wang <cong.wang@...edance.com>
> 
> When we call af_ops->set_link_af() we hold a RCU read lock
> as we retrieve af_ops from the RCU protected list, but this
> is unnecessary because we already hold RTNL lock, which is
> the writer lock for protecting rtnl_af_ops, so it is safer
> than RCU read lock. Similar for af_ops->validate_link_af().
> 
> [...]

Here is the summary with links:
  - [net,v2] rtnetlink: avoid RCU read lock when holding RTNL
    https://git.kernel.org/netdev/net-next/c/a100243d95a6

You are awesome, thank you!
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