netdev - Re: [PATCH net-next v2 1/2] lockdep: Introduce in

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Message-ID: <c85ba51b-0904-0376-7896-2eeb0d1b3d30@huawei.com>
Date:   Tue, 24 Nov 2020 18:30:56 +0800
From:   Yunsheng Lin <linyunsheng@...wei.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        Jakub Kicinski <kuba@...nel.org>
CC:     <mingo@...hat.com>, <will@...nel.org>, <viro@...iv.linux.org.uk>,
        <kyk.segfault@...il.com>, <davem@...emloft.net>,
        <linmiaohe@...wei.com>, <martin.varghese@...ia.com>,
        <pabeni@...hat.com>, <pshelar@....org>, <fw@...len.de>,
        <gnault@...hat.com>, <steffen.klassert@...unet.com>,
        <vladimir.oltean@....com>, <edumazet@...gle.com>,
        <saeed@...nel.org>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linuxarm@...wei.com>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH net-next v2 1/2] lockdep: Introduce in_softirq lockdep
 assert

On 2020/11/24 16:11, Peter Zijlstra wrote:
> On Mon, Nov 23, 2020 at 12:12:59PM -0800, Jakub Kicinski wrote:
>> One liner would be:
>>
>> 	* Acceptable for protecting per-CPU resources accessed from BH
>> 	
>> We can add:
>>
>> 	* Much like in_softirq() - semantics are ambiguous, use carefully. *
>>
>>
>> IIUC we basically want to protect the nc array and counter here:
> 
> Works for me, thanks!

Will add the above comment in v3.

Thanks.

> .
>