linux-kernel - Re: [PATCH -next] panic: Add register_panic_notifier and unregister_panic

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Message-ID: <d6ba371d778842bead73e62fc04d612f@huawei.com>
Date:   Mon, 1 Aug 2022 13:58:20 +0000
From:   "xuqiang (M)" <xuqiang36@...wei.com>
To:     "Guilherme G. Piccoli" <gpiccoli@...lia.com>,
        "pmladek@...e.com" <pmladek@...e.com>,
        "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
        "elver@...gle.com" <elver@...gle.com>,
        "mcgrof@...nel.org" <mcgrof@...nel.org>,
        "tangmeng@...ontech.com" <tangmeng@...ontech.com>,
        "yangtiezhu@...ngson.cn" <yangtiezhu@...ngson.cn>,
        "john.ogness@...utronix.de" <john.ogness@...utronix.de>,
        "bigeasy@...utronix.de" <bigeasy@...utronix.de>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Guohanjun (Hanjun Guo)" <guohanjun@...wei.com>,
        "weiyongjun (A)" <weiyongjun1@...wei.com>
Subject: Re: [PATCH -next] panic: Add register_panic_notifier and
 unregister_panic_notifier

在 2022/8/1 20:12, Guilherme G. Piccoli 写道:
> On 01/08/2022 07:05, Xu Qiang wrote:
>> Add two methods to manipulate panic_notifier_list and export them.
>> Subsequently, panic_notifier_list is changed to static variable.
>>
>> Signed-off-by: Xu Qiang <xuqiang36@...wei.com>
> Hi Xu Qiang, first of all, thanks for your patch!
> I'd like to mention 2 things about it:
>
> (a) As-is, there's no much use for it - I mean, you're adding a helper
> but you didn't change the uses of such notifier list addition (and there
> are plenty of them). Are you intend to change it, or just use the new
> API in new calls?
After this patch comes in, I will replace all the old interfaces with
the new ones.
>
> (b) Even more important: we are working in a panic notifier refactor
> [0], and that'll add new lists. I'm still working on that, plan to
> submit (relatively) soon. Maybe worth to wait it, if this one is not urgent?
I can wait for your patch to be incorporated before submitting it.
>
> Cheers,
>
>
> Guilherme
>
>
> [0]
> https://lore.kernel.org/lkml/20220427224924.592546-1-gpiccoli@igalia.com/
>
Thanks

Xu