On 03/24/2016 04:33 PM, Max Reitz wrote: > This is optional so that it does not impede the null block driver's > performance unless this behavior is desired. > > Signed-off-by: Max Reitz > --- > block/null.c | 20 ++++++++++++++++++++ > 1 file changed, 20 insertions(+) Reviewed-by: Eric Blake -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org