[CRIU] [PATCH] cg: Add ability to dump custom cgroup properties and skip controllers

Cyrill Gorcunov gorcunov at gmail.com
Wed Apr 27 00:31:06 PDT 2016


On Wed, Apr 27, 2016 at 12:19:26AM +0300, Cyrill Gorcunov wrote:
> We have some common predefined properties such as "cpuset.cpus" and etc gathered
> in @cgp_predefined set, but there might be situation when only predefined ones
> are not enough, so add ability to specify additional properties via --cgroup-props
> and/or --cgroup-props-file options.
> 
> For example one may pass
> 
>   --cgroup-props "\"cpu\": [\"cpu.shares\", \"cpu.cfs_period_us\"]"
> 
> to dump custom properties for cpu controller.
> 
> The description is implemented in almost valid yaml, probably we will
> need to support the various forms, but oneline is enough for now.
> 
> Note, that once controllers and properties are defined, the controllers
> met in procfs output not matched ones specified in command line are
> skipped, moreover all predefine properties are skipped as well, so
> that such dynamic descriptor must cover all controllers and properties
> needed to be carried inside image.
> 
> I didn't tested all this, so new version probably coming soon.
> Still take a look, maybe something obvious come to mind.
> 
> Signed-off-by: Cyrill Gorcunov <gorcunov at openvz.org>

Drop it, gonna rework ;)


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