linux-kernel - Re: [ovs-dev] [PATCH net v2] openvswitch: meter: fix race when getting now

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Message-Id: <162094680986.5074.15163998908768388322.git-patchwork-notify@kernel.org>
Date:   Thu, 13 May 2021 23:00:09 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Tao Liu <thomas.liu@...oud.cn>
Cc:     pshelar@....org, dev@...nvswitch.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, i.maximets@....org,
        jean.tourrilhes@....com, kuba@...nel.org, davem@...emloft.net,
        wenxu@...oud.cn
Subject: Re: [ovs-dev] [PATCH net v2] openvswitch: meter: fix race when getting
 now_ms.

Hello:

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

On Thu, 13 May 2021 21:08:00 +0800 you wrote:
> We have observed meters working unexpected if traffic is 3+Gbit/s
> with multiple connections.
> 
> now_ms is not pretected by meter->lock, we may get a negative
> long_delta_ms when another cpu updated meter->used, then:
>     delta_ms = (u32)long_delta_ms;
> which will be a large value.
> 
> [...]

Here is the summary with links:
  - [ovs-dev,net,v2] openvswitch: meter: fix race when getting now_ms.
    https://git.kernel.org/netdev/net/c/e4df1b0c2435

You are awesome, thank you!
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