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From: Marc MERLIN <marc@merlins.org>
To: Josef Bacik <jbacik@fb.com>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: 3.14.0-rc3 btrfs scrub is preventing my laptop from going to sleep
Date: Mon, 3 Mar 2014 15:13:10 -0800	[thread overview]
Message-ID: <20140303231310.GB16854@merlins.org> (raw)
In-Reply-To: <5314FFB9.9090306@fb.com>

On Mon, Mar 03, 2014 at 05:18:33PM -0500, Josef Bacik wrote:
> > Maybe it will work if we cancel the scrub as opposed to pausing it,
> > but of course it's not ideal. Is that the next step?
> 
> Sigh I thought the PM stuff called freeze_fs() but I think that was
> just tuxonice.  I don't have a quick fix at the moment, I really will
> have to wait on this until after qgroups.  Thanks,

That's ok, thanks for giving it a shot.

For now, I just stuck this in /etc/acpi/sleep.sh
awk '/btrfs/ { print $1 }' /proc/mounts | sort -u | while read fs; do btrfs scrub cancel $fs; done

Not great, but it ensures my laptop will go to sleep and not kill my
batteries with the lid closed :)

Marc
-- 
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
                                      .... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/                         | PGP 1024R/763BE901

      reply	other threads:[~2014-03-03 23:13 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-27 19:06 3.14.0-rc3 btrfs scrub is preventing my laptop from going to sleep Marc MERLIN
2014-02-27 23:30 ` Marc MERLIN
2014-02-28  1:18 ` Wang Shilong
     [not found]   ` <20140301050937.GD18300@merlins.org>
2014-03-01 15:22     ` Marc MERLIN
2014-03-03  3:17       ` Wang Shilong
2014-03-03  5:21         ` Marc MERLIN
2014-03-03  6:50           ` Wang Shilong
2014-03-03 15:10             ` Marc MERLIN
2014-03-03 16:56 ` Josef Bacik
2014-03-03 17:09   ` Josef Bacik
2014-03-03 22:05     ` Marc MERLIN
2014-03-03 22:18       ` Josef Bacik
2014-03-03 23:13         ` Marc MERLIN [this message]

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