Hello:
This patch was applied to bpf/bpf.git (master)
by Daniel Borkmann <daniel@xxxxxxxxxxxxx>:
On Tue, 1 Nov 2022 21:34:17 -0700 you wrote:
> From: Cong Wang <cong.wang@xxxxxxxxxxxxx>
>
> Stanislav reported a lockdep warning, which is caused by the
> cancel_work_sync() called inside sock_map_close(), as analyzed
> below by Jakub:
>
> psock->work.func = sk_psock_backlog()
> ACQUIRE psock->work_mutex
> sk_psock_handle_skb()
> skb_send_sock()
> __skb_send_sock()
> sendpage_unlocked()
> kernel_sendpage()
> sock->ops->sendpage = inet_sendpage()
> sk->sk_prot->sendpage = tcp_sendpage()
> ACQUIRE sk->sk_lock
> tcp_sendpage_locked()
> RELEASE sk->sk_lock
> RELEASE psock->work_mutex
>
> [...]
Here is the summary with links:
- [bpf,v2] sock_map: move cancel_work_sync() out of sock lock
https://git.kernel.org/bpf/bpf/c/8bbabb3fddcd
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
