[Devel] Re: [PATCH] fix bad behavior in use_hierarchy file

Michal Hocko mhocko at suse.cz
Tue Jun 26 00:56:53 PDT 2012

[Adding Ying to CC - they are using hierarchies AFAIU in their workloads]

On Mon 25-06-12 13:49:08, Tejun Heo wrote:
> A bit of delta but is there any chance we can either deprecate
> .use_hierarhcy or at least make it global toggle instead of subtree
> thing?  

So what you are proposing is to have all subtrees of the root either
hierarchical or not, right?

> This seems needlessly complicated. :(

Toggle wouldn't help much I am afraid. We would still have to
distinguish (non)hierarchical cases. And I am not sure we can make
everything hierarchical easily. 
Most users (from my experience) ignored use_hierarchy for some reasons
and the end results might be really unexpected for them if they used
deeper subtrees (which might be needed due to combination with other
Michal Hocko
Lihovarska 1060/12
190 00 Praha 9    
Czech Republic

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