[Devel] [PATCH rh7] venetstat: Add ioctl interface via VE cgroup

Cyrill Gorcunov gorcunov at virtuozzo.com
Fri Jun 19 02:06:29 PDT 2015

On Fri, Jun 19, 2015 at 11:59:42AM +0300, Vladimir Davydov wrote:
> > 
> > I'd prefer to pass legacy_veid to these ioctls instead of introducing a
> > new API just to zap it in the next major release...
> OK, here goes what we've agreed upon. We do not introduce any substitute
> for legacy ioctls used for obtaining stats, because designing a user API
> is not an easy task. For UUID-based we will pass ve.legacy_veid to them.
> The legacy_veid won't be auto-generated, as it is now. Instead, it will
> be set from userspace on CT start. It should conform to two rules: (1)
> uniqueness (all CTs on the same node have different IDs) and (2)
> persistence (doesn't change after CT restart on the same node).

So for uuid-based containers userspace tool simply have to
read ve.legacy_veid and pass it into ioctl, right? What I
have to do then?


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