linux-kernel - Re: [PATCH 5/6] x86: mm: new tunable for single vs full TLB flush

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Date:	Tue, 22 Apr 2014 17:31:52 -0400
From:	Rik van Riel <riel@...hat.com>
To:	Dave Hansen <dave@...1.net>, x86@...nel.org
CC:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	akpm@...ux-foundation.org, kirill.shutemov@...ux.intel.com,
	mgorman@...e.de, ak@...ux.intel.com, alex.shi@...aro.org,
	dave.hansen@...ux.intel.com
Subject: Re: [PATCH 5/6] x86: mm: new tunable for single vs full TLB flush

On 04/21/2014 02:24 PM, Dave Hansen wrote:
> From: Dave Hansen <dave.hansen@...ux.intel.com>
> 
> Most of the logic here is in the documentation file.  Please take
> a look at it.
> 
> I know we've come full-circle here back to a tunable, but this
> new one is *WAY* simpler.  I challenge anyone to describe in one
> sentence how the old one worked.  Here's the way the new one
> works:
> 
> 	If we are flushing more pages than the ceiling, we use
> 	the full flush, otherwise we use per-page flushes.
> 
> Signed-off-by: Dave Hansen <dave.hansen@...ux.intel.com>

Acked-by: Rik van Riel <riel@...hat.com>


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