Re: [this_cpu_xx V4 02/20] this_cpu: X86 optimized this_cpu operations

[Pekka Enberg]

Hi,

Ingo Molnar wrote:
> * cl@xxxxxxxxxxxxxxxxxxxx <cl@xxxxxxxxxxxxxxxxxxxx> wrote:
>
> > Basically the existing percpu ops can be used for this_cpu variants 
> > that allow operations also on dynamically allocated percpu data. 
> > However, we do not pass a reference to a percpu variable in. Instead a 
> > dynamically or statically allocated percpu variable is provided.
> >
> > Preempt, the non preempt and the irqsafe operations generate the same 
> > code. It will always be possible to have the requires per cpu 
> > atomicness in a single RMW instruction with segment override on x86.
> >
> > 64 bit this_cpu operations are not supported on 32 bit.
> >
> > Signed-off-by: Christoph Lameter <cl@xxxxxxxxxxxxxxxxxxxx>
>
> Acked-by: Ingo Molnar <mingo@xxxxxxx>

I haven't looked at the series in detail but AFAICT the SLUB patches 
depend on the x86 ones. Any suggestions how to get all this into 
linux-next? Should I make a topic branch in slab.git on top of -tip or 
something?

			Pekka
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