On Wed, May 13, 2020 at 23:49:17 -0400, John Snow wrote: > Hi, > > This is a new (very small) block job that writes a pattern into a > bitmap. The only pattern implemented is the top allocation information. > > This can be used to "recover" an incremental bitmap chain if an external > snapshot was taken without creating a new bitmap first: any writes made > to the image will be reflected by the allocation status and can be > written back into a bitmap. > > This is useful for e.g. libvirt managing backup chains if a user creates > an external snapshot outside of libvirt.
I've dusted-off my patches for using this blockjob for this very specific case and it works for me. Tested-by: Peter Krempa <pkre...@redhat.com> For now I'll continue the integration with other blockjobs where we merge bitmaps.
