linux-kernel - Re: [PATCH v2 2/4] watchdog: export watchdog_mutex and lockup_detector

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 24 Jun 2022 14:45:37 +0200
From:   Laurent Dufour <ldufour@...ux.ibm.com>
To:     Christoph Hellwig <hch@...radead.org>
Cc:     mpe@...erman.id.au, benh@...nel.crashing.org, paulus@...ba.org,
        nathanl@...ux.ibm.com, haren@...ux.vnet.ibm.com, npiggin@...il.com,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/4] watchdog: export watchdog_mutex and
 lockup_detector_reconfigure

On 24/06/2022, 11:37:23, Christoph Hellwig wrote:
> On Tue, Jun 14, 2022 at 03:54:12PM +0200, Laurent Dufour wrote:
>> The watchdog_mutex is exported to allow some variable to be changed under
>> its protection and prevent any conflict.
>> The lockup_detector_reconfigure() function is exported and is expected to
>> be called under the protection of watchdog_mutex.
> 
> Please provide an actual function accessor instead of directly touching
> a global lock.

Thanks Christoph,

I'll try to not touch to that mutex, if that's not doable, I'll create
function accessor as you're suggesting.