Re: [PATCH v5 6/7] x86/tlb: optimizing flush_tlb_mm

From: Peter Zijlstra
Date: Tue May 15 2012 - 05:11:46 EST

On Tue, 2012-05-15 at 16:55 +0800, Alex Shi wrote:
> Not every flush_tlb_mm execution moment is really need to evacuate all
> TLB entries, like in munmap, just few 'invlpg' is better for whole
> process performance, since it leaves most of TLB entries for later
> accessing.
> This patch is changing flush_tlb_mm(mm) to flush_tlb_mm(mm, start,
> end)
> in cases.

Ok, so you're not getting it.

NACKED-BY: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
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