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Message-Id: <163464540849.1998.7367449316991483244.git-patchwork-notify@kernel.org>
Date: Tue, 19 Oct 2021 12:10:08 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc: eric.dumazet@...il.com, netdev@...r.kernel.org,
netfilter-devel@...r.kernel.org, kuba@...nel.org,
davem@...emloft.net, pablo@...filter.org, kadlec@...filter.org,
fw@...len.de, jhs@...atatu.com, xiyou.wangcong@...il.com,
jiri@...nulli.us, a.darwish@...utronix.de, edumazet@...gle.com,
tglx@...utronix.de
Subject: Re: [PATCH net-next] net: sched: Allow statistics reads from softirq.
Hello:
This patch was applied to netdev/net-next.git (master)
by David S. Miller <davem@...emloft.net>:
On Tue, 19 Oct 2021 12:12:04 +0200 you wrote:
> Eric reported that the rate estimator reads statics from the softirq
> which in turn triggers a warning introduced in the statistics rework.
>
> The warning is too cautious. The updates happen in the softirq context
> so reads from softirq are fine since the writes can not be preempted.
> The updates/writes happen during qdisc_run() which ensures one writer
> and the softirq context.
> The remaining bad context for reading statistics remains in hard-IRQ
> because it may preempt a writer.
>
> [...]
Here is the summary with links:
- [net-next] net: sched: Allow statistics reads from softirq.
https://git.kernel.org/netdev/net-next/c/e22db7bd552f
You are awesome, thank you!
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