Drop posix timers from TODO

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
tests: Add posix_timers as passing

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
obj: Add obj_zalloc helper

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
criu: Massive rename of PB_ and CR_ constants

In criu commit 84737e2796fdc0ee3221ea784abc57ffa50df71d
a number of constants have been renamed what caused
cpt2 stop to build.

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
net: Fix reading net devices

Need to be ready for various type of objects which
could be met in payload.

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>