[CRIU] [PATCH 1/2] cgroup: drop cgroup.sane_behavior from global properties

[Andrew Vagin]

On Tue, Feb 02, 2016 at 03:46:44PM +1100, Tycho Andersen wrote:
> On Mon, Feb 01, 2016 at 07:44:50PM -0800, Andrew Vagin wrote:
> > On Tue, Feb 02, 2016 at 09:56:40AM +1100, Tycho Andersen wrote:
> > > cgroup.sane_behavior is read only (and in fact, the value is always 0), so
> > > we don't need to c/r this value.
> > 
> > When do we dump and restore global props?
> 
> As part of when we dump the parameters for the particular controller,
> 
> https://github.com/xemul/criu/blob/master/cgroup.c#L472

I found that "global" doesn't mean that it exists only to the root
group.

cgroup.sane_behavior exists only for the root group.

[avagin at laptop linux-task-diag]$ cat
/sys/fs/cgroup/cpu/cgroup.sane_behavior 
0
[avagin at laptop linux-task-diag]$ cat
/sys/fs/cgroup/cpu/system.slice/cgroup.sane_behavior
cat: /sys/fs/cgroup/cpu/system.slice/cgroup.sane_behavior: No such file
or directory

Acked-by: Andrew Vagin <avagin at virtuozzo.com>

Thanks!


> 
> Tycho