[CRIU] [PATCH 02/10] cgroup: nested cgroups aren't really supported

Serge Hallyn serge.hallyn at ubuntu.com
Wed Mar 2 16:29:21 PST 2016


Quoting Tycho Andersen (tycho.andersen at canonical.com):
> After some discussion with Serge Hallyn, it seems that the current
> implementation of cgroup namespaces doesn't really support nesting. It's

You mean the current criu implementation, right?  (The kernel
handles them just fine - just making sure)

> not a quick fix, so let's disable this for now (not that it matters, since
> probably nobody is nesting these anyways right now :)
> 
> Signed-off-by: Tycho Andersen <tycho.andersen at canonical.com>
> ---
>  criu/include/namespaces.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/criu/include/namespaces.h b/criu/include/namespaces.h
> index cd74710..303c9e6 100644
> --- a/criu/include/namespaces.h
> +++ b/criu/include/namespaces.h
> @@ -11,7 +11,7 @@
>  #endif
>  
>  /* Nested namespaces are supported only for these types */
> -#define CLONE_SUBNS	(CLONE_NEWNS | CLONE_NEWCGROUP)
> +#define CLONE_SUBNS	(CLONE_NEWNS)
>  
>  struct ns_desc {
>  	unsigned int	cflag;
> -- 
> 2.7.0
> 
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