netdev - Re: [PATCH net-next] net: sched: act_ife: disable bh when taking ife_mod

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Date:   Tue, 14 Aug 2018 20:34:53 +0300
From:   Vlad Buslov <vladbu@...lanox.com>
To:     Cong Wang <xiyou.wangcong@...il.com>
Cc:     Linux Kernel Network Developers <netdev@...r.kernel.org>,
        David Miller <davem@...emloft.net>,
        Jamal Hadi Salim <jhs@...atatu.com>,
        Jiri Pirko <jiri@...nulli.us>
Subject: Re: [PATCH net-next] net: sched: act_ife: disable bh when taking ife_mod_lock


On Mon 13 Aug 2018 at 23:18, Cong Wang <xiyou.wangcong@...il.com> wrote:
> Hi, Vlad,
>
> Could you help to test my fixes?
>
> I just pushed them into my own git repo:
> https://github.com/congwang/linux/commits/net-sched-fixes
>
> Particularly, this is the revert:
> https://github.com/congwang/linux/commit/b3f51c4ab8272cc8d3244848e528fce1426c4659
> and this is my fix for the lockdep warning you reported:
> https://github.com/congwang/linux/commit/ecadcde94919183e9f0d5bc376f05e731baf2661
>
> I don't have environment to test ife modules.

Hi Cong,

I've run the test with your patch applied and couldn't reproduce the
lockdep warning.

>
> BTW, this is the fix for the deadlock I spotted:
> https://github.com/congwang/linux/commit/44f3d7f5b6ed2d4a46177e6c658fa23b76141afa
>
> Thanks!