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Re: [PATCH v6 4/7] mm: refactoring TLB gathering API

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  Re: [PATCH v6 4/7] mm: refactoring TLB gathering API Minchan Kim <minchan@kernel.org> - 2017-08-14 02:50 +0200

#1710592 — Re: [PATCH v6 4/7] mm: refactoring TLB gathering API

On Fri, Aug 11, 2017 at 10:12:45AM -0700, Nadav Amit wrote:
> Peter Zijlstra <peterz@infradead.org> wrote:
> 
> > On Tue, Aug 01, 2017 at 05:08:15PM -0700, Nadav Amit wrote:
> >> From: Minchan Kim <minchan@kernel.org>
> >> 
> >> This patch is a preparatory patch for solving race problems caused by
> >> TLB batch.  For that, we will increase/decrease TLB flush pending count
> >> of mm_struct whenever tlb_[gather|finish]_mmu is called.
> >> 
> >> Before making it simple, this patch separates architecture specific
> >> part and rename it to arch_tlb_[gather|finish]_mmu and generic part
> >> just calls it.
> > 
> > I absolutely hate this. We should unify this stuff, not diverge it
> > further.
> 
> Agreed, but I don’t see how this patch makes the situation any worse.

Agree with Nadav. I don't think this patch makes things diverge further.
Peter, If you are strong against of it, please tell us what part you
are hating.

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