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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <5356DFC8.1060601@redhat.com>
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>


-- 
All rights reversed
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/