[libvirt] [PATCH 18/19] qemu: backup: Merge bitmaps accross the backing chain

Eric Blake eblake at redhat.com
Thu Dec 12 20:41:30 UTC 2019


On 12/12/19 11:18 AM, Peter Krempa wrote:
> To allow backups work accross external snapshots we need to improve the

across

> algorithm which calculates which bitmaps to merge.
> 
> The algorithm must look for appropriately named bitmaps in the image and
> possibly descend into a backing image if the current image does not have
> the bitmap.
> 
> Signed-off-by: Peter Krempa <pkrempa at redhat.com>
> ---
>   src/qemu/qemu_backup.c | 62 ++++++++++++++++++++++++++++++++++++------
>   1 file changed, 54 insertions(+), 8 deletions(-)

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

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3226
Virtualization:  qemu.org | libvirt.org




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