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Re: [Qemu-devel] [PATCH v6 07/24] qcow2: Helper for refcount array reall

From: Eric Blake
Subject: Re: [Qemu-devel] [PATCH v6 07/24] qcow2: Helper for refcount array reallocation
Date: Wed, 11 Feb 2015 11:19:57 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0

On 02/10/2015 01:28 PM, Max Reitz wrote:
> Add a helper function for reallocating a refcount array, independent of
> the refcount order. The newly allocated space is zeroed and the function
> handles failed reallocations gracefully.
> The helper function will always align the buffer size to a cluster
> boundary; if storing the refcounts in such an array in big endian byte
> order, this makes it possible to write parts of the array directly as
> refcount blocks into the image file.
> Signed-off-by: Max Reitz <address@hidden>
> ---
>  block/qcow2-refcount.c | 130 
> ++++++++++++++++++++++++++++++-------------------
>  1 file changed, 81 insertions(+), 49 deletions(-)

Reviewed-by: Eric Blake <address@hidden>

Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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