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Message-ID: <ZMdhYGKvED9IVP4c@infradead.org>
Date:   Mon, 31 Jul 2023 00:23:12 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:     Christoph Hellwig <hch@...radead.org>,
        Christian Brauner <brauner@...nel.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Bill O'Donnell <billodo@...hat.com>,
        Rob Barnes <robbarnes@...gle.com>, bleung@...omium.org,
        linux-fsdevel@...r.kernel.org,
        Alexander Viro <viro@...iv.linux.org.uk>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] fs: export emergency_sync

On Wed, Jul 19, 2023 at 01:51:25PM -0700, Dmitry Torokhov wrote:
> I am not sure why you would not want modules to use it - in the case we
> have here we detect a catastrophic failure in a critical system
> component (embedded controller crashed) and would like to have as much
> of the logs saved as possible. It is a module because this kind of EC
> may not be present on every system, but when it is present it is very
> much a core component.

I really don't think this is a kernel poicy in any way.  Please do
a userspace upcall and let userspace deal with the policy decision.

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