netdev - Re: [PATCH v2 net] net: Use this_cpu_inc() to increment net->core

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Message-Id: <165102121107.22539.16627755071494426729.git-patchwork-notify@kernel.org>
Date:   Wed, 27 Apr 2022 01:00:11 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc:     kuba@...nel.org, netdev@...r.kernel.org, edumazet@...gle.com,
        davem@...emloft.net, pabeni@...hat.com, tglx@...utronix.de,
        peterz@...radead.org
Subject: Re: [PATCH v2 net] net: Use this_cpu_inc() to increment net->core_stats

Hello:

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

On Mon, 25 Apr 2022 18:39:46 +0200 you wrote:
> The macro dev_core_stats_##FIELD##_inc() disables preemption and invokes
> netdev_core_stats_alloc() to return a per-CPU pointer.
> netdev_core_stats_alloc() will allocate memory on its first invocation
> which breaks on PREEMPT_RT because it requires non-atomic context for
> memory allocation.
> 
> This can be avoided by enabling preemption in netdev_core_stats_alloc()
> assuming the caller always disables preemption.
> 
> [...]

Here is the summary with links:
  - [v2,net] net: Use this_cpu_inc() to increment net->core_stats
    https://git.kernel.org/netdev/net/c/6510ea973d8d

You are awesome, thank you!
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