Re: [Qemu-devel] [PATCH v3 01/12] qcow2: Add new overlap check functions

[Eric Blake <eblake@redhat.com>]

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On 02/09/2015 12:25 PM, Max Reitz wrote:
> The existing qcow2 metadata overlap detection function used existing
> structures to determine the location of the image metadata, from plain
> fields such as l1_table_offset and l1_size in the BDRVQcowState, over
> image structures in memory such as the L1 table for the L2 tables'
> positions, or it even read the required data directly from disk for
> every requested check, such as the snapshot L1 tables for the inactive
> L2 tables' positions.
> 
...

> 
> Signed-off-by: Max Reitz <mreitz@redhat.com>
> ---
>  block/Makefile.objs   |   3 +-
>  block/qcow2-overlap.c | 400 ++++++++++++++++++++++++++++++++++++++++++++++++++
>  block/qcow2.h         |  13 ++
>  3 files changed, 415 insertions(+), 1 deletion(-)
>  create mode 100644 block/qcow2-overlap.c
> 

Reviewed-by: Eric Blake <eblake@redhat.com>

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


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