Re: [PATCH] ia64: Avoid unnecessary TLB flushes when allocating memory

From: Kyle McMartin <kyle_at_mcmartin.ca>
Date: 2007-12-18 17:00:15
On Tue, Dec 18, 2007 at 10:05:45AM +0900, KAMEZAWA Hiroyuki wrote:
> On Thu, 13 Dec 2007 15:03:07 +0000
> 
> > +       if (mm != active_mm) {
> > +               /* Restore region IDs for mm */
> > +               if (mm && active_mm) {
> > +                       activate_context(mm);
> > +               } else {
> > +                       flush_tlb_all();
> > +                       return;
> > +               }
> >         }
> should be 
> 

platform_global_tlb_purge is already (and afaict, only) called under
preempt_disable already. then again, the sn2 global_tlb_purge
does it, so possibly for completeness sake it should be added here as
well?

regards, kyle
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Received on Tue Dec 18 17:00:49 2007

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