linux-kernel - Re: [stable] [Stable-review] [116/165] ext4: dont return to userspace after freezing the fs with a mutex held

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Message-ID: <4C5FC3BB.4030602@canonical.com>
Date:	Mon, 09 Aug 2010 11:00:43 +0200
From:	Stefan Bader <stefan.bader@...onical.com>
To:	Eric Sandeen <sandeen@...hat.com>
CC:	Henrique de Moraes Holschuh <hmh@....eng.br>,
	Greg KH <greg@...ah.com>, Greg KH <gregkh@...e.de>,
	linux-kernel@...r.kernel.org, stable@...nel.org,
	akpm@...ux-foundation.org, torvalds@...ux-foundation.org,
	stable-review@...nel.org, alan@...rguk.ukuu.org.uk
Subject: Re: [stable] [Stable-review] [116/165] ext4: dont return to userspace
 after freezing the fs with a mutex held

On 08/07/2010 03:38 PM, Eric Sandeen wrote:
> Henrique de Moraes Holschuh wrote:
>> On Mon, 02 Aug 2010, Greg KH wrote:
>>> On Mon, Aug 02, 2010 at 12:02:45PM -0500, Eric Sandeen wrote:
>>>> On 08/02/2010 07:04 AM, Stefan Bader wrote:
>>>>> We have reports about this patch breaking lvm snapshhots. Eric, there is a patch
>>>>> mentioned which is supposed to fix things but its not upstream, yet.
>>>>> Do you know what happened to that?
>>>> right, patch below is needed to fix things.
>>>>
>>>> Ted just acked it on the list recently; Greg, I'd either drop 116/165
>>>> for now, or include the patch below which should be upstream soon...
>>> I can't take anything that isn't upstream yet.
>>>
>>> And I just released with this patch in the kernel, should I do a revert
>>> and do a new release?
>>
>> Any answers on this?
>>
> 
> Yes, I'd revert it for now, I'm afraid, if the other patch isn't upstream
> yet.
> 
> Sorry about that,
> 
> -Eric

Upstream as of now (same SHA1 as in linux-next):

>From 437f88cc031ffe7f37f3e705367f4fe1f4be8b0f Mon Sep 17 00:00:00 2001
From: Eric Sandeen <sandeen@...deen.net>
Date: Sun, 1 Aug 2010 17:33:29 -0400
Subject: [PATCH] (pre-stable) ext4: fix freeze deadlock under IO

-Stefan
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