vzlist: add ioprio field

Currently the value is only obtained from CT config files.
We could add support for getting the value from /proc/bc/$CTID/ioprio
some time later.

http://bugzilla.openvz.org/show_bug.cgi?id=1526

Reported-by: Dennis P. Nikolaenko <dennis@nikolaenko.ru>
Signed-off-by: Kir Kolyshkin <kir@openvz.org>
3 files changed