On 05/21/2015 09:40 PM, Fam Zheng wrote: > Now this function follows the backing chain until seeing BDRV_BLOCK_ALLOCATED. > Base is not included, and it can be NULL just like bdrv_is_allocated_above(). > > Existing callers pass in bs->backing_hd to keep the old behavior. > > Signed-off-by: Fam Zheng <f...@redhat.com> > --- > block/io.c | 39 ++++++++++++++++++++++++++++++++------- > include/block/block.h | 3 ++- > qemu-img.c | 6 ++++-- > 3 files changed, 38 insertions(+), 10 deletions(-)
Reviewed-by: Eric Blake <ebl...@redhat.com> -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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