linux-kernel - Re: [ 094/127] md: make sure metadata is updated when spares are activated or removed.

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Date:	Tue, 2 Oct 2012 12:52:00 +1000
From:	NeilBrown <neilb@...e.de>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Ben Hutchings <ben@...adent.org.uk>, linux-kernel@...r.kernel.org,
	stable@...r.kernel.org, alan@...rguk.ukuu.org.uk
Subject: Re: [ 094/127] md: make sure metadata is updated when spares are
 activated or removed.

On Fri, 28 Sep 2012 16:57:45 -0700 Greg Kroah-Hartman
<gregkh@...uxfoundation.org> wrote:

> On Sat, Sep 29, 2012 at 12:51:04AM +0200, Ben Hutchings wrote:
> > On Fri, 2012-09-28 at 13:34 -0700, Greg Kroah-Hartman wrote:
> > > 3.0-stable review patch.  If anyone has any objections, please let me know.
> > > 
> > > ------------------
> > > 
> > > From: NeilBrown <neilb@...e.de>
> > > 
> > > commit 6dafab6b1383e912cd252fa809570b484eb6e0dc upstream.
> > [...]
> > > This is suitable for -stable as out-of-data metadata could lead
> > > to data corruption.
> > > This is only relevant for 3.3 and later 9when 'replacement' as
> > > introduced.
> > [...]
> > 
> > Assuming Neil hasn't changed his mind about this, it should therefore
> > not be applied to 3.0.
> 
> Neil, is this true?
> 
> greg k-h

Yes it is true - my bad.

I should have realised that when you pointed out that the backport wasn't
clean.
The patch won't hurt 3.0, but it isn't necessary at all, so best leave it out.

Thanks,
NeilBrown


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