Re: cgroup attach task - slogging cpu

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On 10/09, Li Zefan wrote:
>
> Anjana, could you revise the patch and send it out with proper changelog
> and Signed-off-by? And please add "Cc: <stable@xxxxxxxxxxxxxxx> # 3.9+"

Yes, Anjana, please!

> > check in the main loop. So Anjana was right (sorry again!), and we
> > should probably do
> > 
> > 		ent.cgrp = task_cgroup_from_root(...);
> > 		if (ent.cgrp != cgrp) {
> > 			retval = flex_array_put(...);
> > 			...
> > 		}
> > 
> > 		if (!threadgroup)
> > 			break;
> > 
> 
> Or
> 
> do {
> 	...
> 	if (ent.cgrp == cgrp)
> 		goto next;

Or this, agreed.

> > Or I am wrong again?
>
> No, you are not! :)

Thanks ;)

Oleg.

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