Re: [PATCH RFC] percpu: add data dependency barrier in percpu accessors and operations

[Tejun Heo]

On Fri, Jun 20, 2014 at 10:23:57AM -0500, Christoph Lameter wrote:
> > You're repeatedly getting wayside in the discussion.  What are you
> > suggesting?  Sending IPIs on each percpu allocation?
> 
> No this is about sending an IPI if you want to modify the percpu data of
> another process. There was a mentionig of code that modifies the per cpu
> data of another processor?

Yes, the initialization of percpu areas on allocation.  That was the
*sole* subject of this thread.

-- 
tejun
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