RE: unnecessary timer interrupt of slab.c and bdi tasks when thesystem is in sleep state

[Van De Ven, Arjan]

> > the slab timer is already deferable... which means it won't hit while
> the system is completely idle.
> 
> 
> I'm not sure what you mean exactly. The slab work seems to be scheduled
> strictly
> periodically, unless the cpu goes offline. But I can't find any nohz-
> wise adaptation.
> 

                INIT_DELAYED_WORK_DEFERRABLE(reap_work, cache_reap);

that will cause it to only run when the cpu is actually idle...

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