netdev - Re: [PATCH net-next] net: use NUMA drop counters for softnet

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Message-Id: 
 <175787642178.3528285.12955350723496612407.git-patchwork-notify@kernel.org>
Date: Sun, 14 Sep 2025 19:00:21 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Eric Dumazet <edumazet@...gle.com>
Cc: davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com, horms@...nel.org,
 ncardwell@...gle.com, willemb@...gle.com, kuniyu@...gle.com,
 netdev@...r.kernel.org, eric.dumazet@...il.com
Subject: Re: [PATCH net-next] net: use NUMA drop counters for
 softnet_data.dropped

Hello:

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

On Tue,  9 Sep 2025 12:19:42 +0000 you wrote:
> Hosts under DOS attack can suffer from false sharing
> in enqueue_to_backlog() : atomic_inc(&sd->dropped).
> 
> This is because sd->dropped can be touched from many cpus,
> possibly residing on different NUMA nodes.
> 
> Generalize the sk_drop_counters infrastucture
> added in commit c51613fa276f ("net: add sk->sk_drop_counters")
> and use it to replace softnet_data.dropped
> with NUMA friendly softnet_data.drop_counters.
> 
> [...]

Here is the summary with links:
  - [net-next] net: use NUMA drop counters for softnet_data.dropped
    https://git.kernel.org/netdev/net-next/c/fdae0ab67d57

You are awesome, thank you!
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