netdev - Re: [PATCH net-next] inet: frags: delay fqdir_free

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Message-Id: 
 <171257102710.30740.16098288868677962814.git-patchwork-notify@kernel.org>
Date: Mon, 08 Apr 2024 10:10:27 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Eric Dumazet <edumazet@...gle.com>
Cc: davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
 netdev@...r.kernel.org, eric.dumazet@...il.com
Subject: Re: [PATCH net-next] inet: frags: delay fqdir_free_fn()

Hello:

This patch was applied to netdev/net-next.git (main)
by David S. Miller <davem@...emloft.net>:

On Thu,  4 Apr 2024 13:07:51 +0000 you wrote:
> fqdir_free_fn() is using very expensive rcu_barrier()
> 
> When one netns is dismantled, we often call fqdir_exit()
> multiple times, typically lauching fqdir_free_fn() twice.
> 
> Delaying by one second fqdir_free_fn() helps to reduce
> the number of rcu_barrier() calls, and lock contention
> on rcu_state.barrier_mutex.
> 
> [...]

Here is the summary with links:
  - [net-next] inet: frags: delay fqdir_free_fn()
    https://git.kernel.org/netdev/net-next/c/802e12ff9cbf

You are awesome, thank you!
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