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Re: [Qemu-devel] [PATCH v4 13/26] qcow2: refcount_order parameter for qc


From: Stefan Hajnoczi
Subject: Re: [Qemu-devel] [PATCH v4 13/26] qcow2: refcount_order parameter for qcow2_create2
Date: Thu, 11 Dec 2014 13:41:47 +0000
User-agent: Mutt/1.5.23 (2014-03-12)

On Wed, Dec 03, 2014 at 02:37:33PM +0100, Max Reitz wrote:
> Add a refcount_order parameter to qcow2_create2(), use that value for
> the image header and for calculating the size required for
> preallocation.
> 
> For now, always pass 4.
> 
> This addition requires changes to the calculation of the file size for
> the "full" and "falloc" preallocation modes. That in turn is a nice
> opportunity to add a comment about that calculation not necessarily
> being exact (and that being intentional).
> 
> Signed-off-by: Max Reitz <address@hidden>
> ---
>  block/qcow2.c | 46 +++++++++++++++++++++++++++++++++++-----------
>  1 file changed, 35 insertions(+), 11 deletions(-)

Reviewed-by: Stefan Hajnoczi <address@hidden>

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