Am 14.11.2018 um 15:58 hat Alberto Garcia geschrieben: > Refcount table entries have a field to store the offset of the > refcount block. The rest of the bits of the entry are currently > reserved. > > The offset is always taken from the entry using REFT_OFFSET_MASK to > ensure that we only use the bits that belong to that field. > > While that mask is used every time we read from the refcount table, it > is never used when we write to it. Due to the other constraints of the > qcow2 format QEMU can never produce refcount block offsets that don't > fit in that field so any such offset when allocating a refcount block > would indicate a bug in QEMU. > > Signed-off-by: Alberto Garcia <be...@igalia.com> > Reviewed-by: Eric Blake <ebl...@redhat.com>
Thanks, applied to the block branch. Kevin
