linux-kernel - Re: [PATCH 3/3] kernel/hung_task convert hung_task

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Message-ID: <ed235358-8a25-61ca-1295-911a21810a47@nvidia.com>
Date:   Tue, 31 Mar 2020 08:49:25 -0700
From:   John Hubbard <jhubbard@...dia.com>
To:     Vlastimil Babka <vbabka@...e.cz>, Kees Cook <keescook@...omium.org>
CC:     Luis Chamberlain <mcgrof@...nel.org>,
        Iurii Zaikin <yzaikin@...gle.com>,
        <linux-kernel@...r.kernel.org>, <linux-api@...r.kernel.org>,
        <linux-mm@...ck.org>,
        Ivan Teterevkov <ivan.teterevkov@...anix.com>,
        Michal Hocko <mhocko@...nel.org>,
        David Rientjes <rientjes@...gle.com>,
        Matthew Wilcox <willy@...radead.org>,
        "Eric W . Biederman" <ebiederm@...ssion.com>,
        "Guilherme G . Piccoli" <gpiccoli@...onical.com>,
        Alexey Dobriyan <adobriyan@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Christian Brauner <christian.brauner@...ntu.com>
Subject: Re: [PATCH 3/3] kernel/hung_task convert hung_task_panic boot
 parameter to sysctl

On 3/31/20 12:27 AM, Vlastimil Babka wrote:
...
> Patches 2+3 are only about handling the legacy boot params that have a sysctl
> counterpart.
> 

OK, I misread what those were for.


>> In fact, the sysctl_aliases[] is (or could be) effectively the whitelist that Luis Chamberlain
>> was requesting in another thread. A whitelist makes good sense, for the reasons Luis listed.
>> As such, keeping it limited to items that we want, seems like the way to go, IMHO.
> 
> See my reply there once I send it :)
> 

Saw that, and it all sounds good now.


thanks,
-- 
John Hubbard
NVIDIA