From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: Domenico Andreoli <domenico.andreoli@linux.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>,
Linux PM <linux-pm@vger.kernel.org>,
Linux Memory Management List <linux-mm@kvack.org>,
linux-fsdevel@vger.kernel.org, mkleinsoft@gmail.com,
Christoph Hellwig <hch@lst.de>,
Andrew Morton <akpm@linux-foundation.org>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Len Brown <len.brown@intel.com>, Pavel Machek <pavel@ucw.cz>
Subject: Re: [PATCH] hibernate: unlock swap bdev for writing when uswsusp is active
Date: Tue, 21 Apr 2020 08:43:33 -0700 [thread overview]
Message-ID: <20200421154333.GG6749@magnolia> (raw)
In-Reply-To: <20200420185255.GA20916@dumbo>
On Mon, Apr 20, 2020 at 08:52:55PM +0200, Domenico Andreoli wrote:
> On Sun, Mar 01, 2020 at 10:35:36PM +0100, Rafael J. Wysocki wrote:
> > On Sat, Feb 29, 2020 at 9:02 PM Domenico Andreoli <domenico.andreoli@linux.com> wrote:
> > >
> > > Maybe user-space hibernation should be a separate option.
> >
> > That actually is not a bad idea at all in my view.
>
> I prepared a patch for this:
> https://lore.kernel.org/linux-pm/20200413190843.044112674@gmail.com/
If you succeed in making uswsusp a kconfig option, can you amend the
"!hibernation available()" test in blkdev_write_iter so that users of
in-kernel hibernate are protected against userspace swap device
scribbles, please?
--D
> Regards,
> Domenico
>
> --
> rsa4096: 3B10 0CA1 8674 ACBA B4FE FCD2 CE5B CF17 9960 DE13
> ed25519: FFB4 0CC3 7F2E 091D F7DA 356E CC79 2832 ED38 CB05
next prev parent reply other threads:[~2020-04-21 15:43 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-29 17:08 [PATCH] hibernate: unlock swap bdev for writing when uswsusp is active Darrick J. Wong
2020-02-29 18:07 ` Domenico Andreoli
2020-02-29 18:38 ` Darrick J. Wong
2020-02-29 20:02 ` Domenico Andreoli
2020-03-01 21:35 ` Rafael J. Wysocki
2020-03-02 4:51 ` Marian Klein
2020-03-03 19:02 ` Darrick J. Wong
2020-03-03 22:51 ` Domenico Andreoli
2020-03-04 1:18 ` Darrick J. Wong
2020-03-04 8:23 ` [PATCH] hibernate: Allow uswsusp to write to swap Domenico Andreoli
2020-03-04 15:45 ` Darrick J. Wong
2020-03-04 16:31 ` Domenico Andreoli
2020-03-04 8:34 ` [PATCH] hibernate: unlock swap bdev for writing when uswsusp is active Domenico Andreoli
2020-04-20 18:52 ` Domenico Andreoli
2020-04-21 15:43 ` Darrick J. Wong [this message]
2020-04-21 18:39 ` Domenico Andreoli
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