Re: [PATCH v2 net-next] net: dev: Always serialize on Qdisc::busylock in __dev_xmit_skb() on PREEMPT_RT.

Hello:

This patch was applied to netdev/net-next.git (master)
by David S. Miller [off-list ref]:

On Mon, 13 Dec 2021 11:53:29 +0100 you wrote:

The root-lock is dropped before dev_hard_start_xmit() is invoked and after
setting the __QDISC___STATE_RUNNING bit. If the Qdisc owner is preempted
by another sender/task with a higher priority then this new sender won't
be able to submit packets to the NIC directly instead they will be
enqueued into the Qdisc. The NIC will remain idle until the Qdisc owner
is scheduled again and finishes the job.

[...]

Here is the summary with links:
  - [v2,net-next] net: dev: Always serialize on Qdisc::busylock in __dev_xmit_skb() on PREEMPT_RT.
    https://git.kernel.org/netdev/net-next/c/64445dda9d83

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html