netdev - Re: [PATCH v1] net/sched: sch_qfq: Avoid triggering might_sleep in atomic context in qfq_delete

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Message-Id: 
 <175317960626.748884.2193607550680698831.git-patchwork-notify@kernel.org>
Date: Tue, 22 Jul 2025 10:20:06 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Xiang Mei <xmei5@....edu>
Cc: dan.carpenter@...aro.org, xiyou.wangcong@...il.com, netdev@...r.kernel.org
Subject: Re: [PATCH v1] net/sched: sch_qfq: Avoid triggering might_sleep in
 atomic
 context in qfq_delete_class

Hello:

This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@...hat.com>:

On Thu, 17 Jul 2025 16:01:28 -0700 you wrote:
> might_sleep could be trigger in the atomic context in qfq_delete_class.
> 
> qfq_destroy_class was moved into atomic context locked
> by sch_tree_lock to avoid a race condition bug on
> qfq_aggregate. However, might_sleep could be triggered by
> qfq_destroy_class, which introduced sleeping in atomic context (path:
> qfq_destroy_class->qdisc_put->__qdisc_destroy->lockdep_unregister_key
> ->might_sleep).
> 
> [...]

Here is the summary with links:
  - [v1] net/sched: sch_qfq: Avoid triggering might_sleep in atomic context in qfq_delete_class
    https://git.kernel.org/netdev/net/c/cf074eca0065

You are awesome, thank you!
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