From: Nigel Cunningham <ncunningham@crca.org.au>
To: Stefan Seyfried <stefan.seyfried@googlemail.com>
Cc: linux-pm@lists.linux-foundation.org
Subject: Re: Freeze the FUSE on Wubi
Date: Fri, 16 Oct 2009 22:27:05 +1100 [thread overview]
Message-ID: <4AD85889.9010206@crca.org.au> (raw)
In-Reply-To: <20091016115854.1e476da8@strolchi.home.s3e.de>
Hi.
Stefan Seyfried wrote:
> On Fri, 16 Oct 2009 01:54:10 -0700 (PDT)
> Nick Davies <nickavies@yahoo.com> wrote:
>
>> Dear all,
>>
>> I am trying to debug the suspend/hibernate on Wubi(The Ubuntu
>> installer for Windows) these day. Since Ubuntu sits on top of NTFS
>> partition with the help of ntfs-3g via FUSE, I think it should not
>> pass the file system freezing stage, but in fact, the suspend works
>> well on my machine. So I am curious that how can they achieve that?
>> Just keep the FUSE alive to the end of the suspend? Any ideas are
>> welcome.
>
> (Disclaimer: all below is AFAIK and it might be slightly wrong)
> On swapon(), a block map of the file / partition is made by the kernel
> and later I/O to the swap area are not going through the filesystem
> layer. So FUSE is not involved in the suspend process at the stage of
> image writing.
It's exactly right.
Regards,
Nigel
next prev parent reply other threads:[~2009-10-16 11:27 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-16 8:54 Freeze the FUSE on Wubi Nick Davies
2009-10-16 9:58 ` Stefan Seyfried
2009-10-16 11:27 ` Nigel Cunningham [this message]
2009-10-17 9:16 ` Nick Davies
2009-10-17 10:08 ` Nigel Cunningham
2009-10-17 10:55 ` Nick Davies
2009-10-17 21:02 ` Nigel Cunningham
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