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Bug#696650: [PATCH v5] md: protect against crash upon fsync on ro array



On Thu, 31 Jan 2013 20:35:22 +0100 Sebastian Riemer
<sebastian.riemer@profitbricks.com> wrote:

> Hi Neil,
> 
> please apply this patch! It is correct, now.
> 
> It applies to 3.2.y, 3.4.y, 3.7.y and latest 3.8-rc5. All these versions
> are affected by this bug.
> 
> 3.0.y and 2.6.34.y are also affected. Please also find the patches for
> these versions attached. I've tested them. They work.
> 
> The strange thing is that 2.6.32.y is immune against this bug. So it
> must be a regression. The patch restores the same behavior as present in
> 2.6.32: fsync receives success.
> 
> I've tested against the following versions: 3.8-rc5, 3.7.5, 3.4.28,
> 3.2.37, 3.0.61, 2.6.34.14 and 2.6.32.60.
> 
> Cheers,
> Sebastian

Thanks!
I've added "Cc: stable@vger.kernel.org" and will forward it to Linus shortly.

NeilBrown

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