linux-kernel - Re: [PATCH 11/24] uswsusp: Disable when the kernel is locked down

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Message-ID: <CAJZ5v0iZ7Wf5pWL9HSzH_0djQfDmCLT14sp0HYbs9h8UuGHPkQ@mail.gmail.com>
Date:   Thu, 6 Apr 2017 22:07:50 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     David Howells <dhowells@...hat.com>
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Matthew Garrett <mjg59@...f.ucam.org>,
        linux-efi@...r.kernel.org, gnomes@...rguk.ukuu.org.uk,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Linux PM <linux-pm@...r.kernel.org>,
        linux-security-module@...r.kernel.org, keyrings@...r.kernel.org,
        matthew.garrett@...ula.com
Subject: Re: [PATCH 11/24] uswsusp: Disable when the kernel is locked down

On Thu, Apr 6, 2017 at 8:55 AM, David Howells <dhowells@...hat.com> wrote:
> Rafael J. Wysocki <rafael@...nel.org> wrote:
>
>> You probably want to disable hibernation altogether in this case.
>
> See patch 10.  Does that mean patch 11 is superfluous?

Yes, it does.

You can't open /dev/snapshot if hibernation_available() returns false.

Thanks,
Rafael