Re: + stupid-hack-to-make-mainline-build.patch added to -mm tree

[Dan Hecht]

On 03/06/2007 02:21 PM, Andi Kleen wrote:
> > I believe this was just a quick fix in response to Ingo breaking the VMI 
> > build yesterday by disabling NO_IDLE_HZ on us.  There is no technical 
> > reason why NO_IDLE_HZ=y can't coexist with NO_HZ.
>
> Well it's nasty that you force NO_IDLE_HZ on all of paravirt ops users.

The only thing NO_IDLE_HZ=y "forces" on other users is some extra code 
(which you are going to get no matter what with CONFIG_PARAVIRT).   It 
doesn't force them to use this code.  It just provides a few extra 
routines that a paravirt_ops backend might want to call back into (I 
think both vmi and xen backends use these routines and that is why it 
became associated with CONFIG_PARAVIRT rather than CONFIG_VMI).
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