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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Date:	Tue, 10 Aug 2010 13:16:39 -0700
From:	Greg KH <greg@...ah.com>
To:	Stefan Bader <stefan.bader@...onical.com>
Cc:	Eric Sandeen <sandeen@...hat.com>,
	Henrique de Moraes Holschuh <hmh@....eng.br>,
	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 Mon, Aug 09, 2010 at 11:00:43AM +0200, Stefan Bader wrote:
> 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

It looks like I can't drop the original one, as this patch builds on it.
So I'll just queue this one up.

Should it also go into other -stable releases (like .35 and/or .34 -stable?)

thanks,

greg k-h
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