linux-kernel - Re: [PATCH] Introduce freeze_super and thaw

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Message-ID: <4BA9A048.6050705@crca.org.au>
Date:	Wed, 24 Mar 2010 16:16:56 +1100
From:	Nigel Cunningham <ncunningham@...a.org.au>
To:	Josef Bacik <josef@...hat.com>
CC:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	chris.mason@...cle.com, viro@...IV.linux.org.uk, hch@....de
Subject: Re: [PATCH] Introduce freeze_super and thaw_super for the fsfreeze
 ioctl

Hi.

On 24/03/10 12:17, Josef Bacik wrote:
> On Wed, Mar 24, 2010 at 09:25:39AM +1100, Nigel Cunningham wrote:
>> Hi.
>>
>> A cc would have been nice :)
>>
>> Thankfully the subject caught my eye.
>>
>
> Well it's not really tux-on-ice's fault, freeze wouldn't work _at all_ via the
> ioctl or any other method, we just happened to notice it was broken because
> people using tux-on-ice were getting corrupt filesystems after suspend :).  Btw,
> it may be good to have freezer_sync set to 1 by default, otherwise if an fs
> doesnt support freezing it will likely end up corrupted too.  Thanks,

Corrupted because the sys_sync was disabled? (We were recently 
discussing adding a tuneable to swsusp for disabling sys_sync there too).

I've just committed a patch making freezer_sync default to 1.

Regards,

Nigel
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