From: Andi Kleen <ak@suse.de>
To: Christoph Lameter <clameter@sgi.com>
Cc: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
Martin Bligh <mbligh@google.com>,
linux-mm@kvack.org,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Subject: Re: [PATCH 1/4] x86_64: Switch to SPARSE_VIRTUAL
Date: Mon, 2 Apr 2007 19:14:07 +0200 [thread overview]
Message-ID: <200704021914.07541.ak@suse.de> (raw)
In-Reply-To: <Pine.LNX.4.64.0704020851300.30394@schroedinger.engr.sgi.com>
> No no no. For the gazillions time: All of 1-1 mapped kernel memory on
> x86_64 needs a 2 MB page table entry. The virtual memmap uses the same.
> There are *no* additional TLBs used.
But why do you reserve an own virtual area then if you claim to not use any
additional mappings?
-Andi
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next prev parent reply other threads:[~2007-04-02 17:14 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-01 7:10 [PATCH 1/2] Generic Virtual Memmap suport for SPARSEMEM Christoph Lameter
2007-04-01 7:10 ` [PATCH 1/4] x86_64: Switch to SPARSE_VIRTUAL Christoph Lameter
2007-04-01 7:11 ` Christoph Lameter
2007-04-01 10:46 ` Andi Kleen
2007-04-02 15:37 ` Christoph Lameter
2007-04-02 15:44 ` Andi Kleen
2007-04-02 15:51 ` Martin J. Bligh
2007-04-02 15:54 ` Christoph Lameter
2007-04-02 17:14 ` Andi Kleen [this message]
2007-04-02 17:34 ` Christoph Lameter
2007-04-02 19:54 ` Dave Hansen
2007-04-02 20:11 ` Christoph Lameter
2007-04-02 20:13 ` Dave Hansen
2007-04-02 20:30 ` Christoph Lameter
2007-04-02 20:38 ` Martin Bligh
2007-04-02 20:51 ` Christoph Lameter
2007-04-05 11:50 ` Andy Whitcroft
2007-04-05 18:27 ` Christoph Lameter
2007-04-07 22:06 ` [PATCH 1/4] x86_64: (SPARSE_VIRTUAL doubles sparsemem speed) Christoph Lameter
2007-04-07 22:18 ` Andi Kleen
2007-04-09 16:40 ` William Lee Irwin III
2007-04-09 17:16 ` Christoph Lameter
2007-04-09 18:20 ` William Lee Irwin III
2007-04-02 21:08 ` [PATCH 1/4] x86_64: Switch to SPARSE_VIRTUAL Dave Hansen
2007-04-02 21:28 ` Christoph Lameter
2007-04-02 21:43 ` Martin Bligh
2007-04-02 21:56 ` Dave Hansen
2007-04-02 22:29 ` Christoph Lameter
2007-04-02 22:31 ` Andi Kleen
2007-04-02 22:37 ` Christoph Lameter
2007-04-02 22:41 ` Martin Bligh
2007-04-02 22:49 ` Christoph Lameter
2007-04-02 22:52 ` Martin Bligh
2007-04-05 12:07 ` Andy Whitcroft
2007-04-04 21:27 ` Bob Picco
2007-04-04 22:38 ` Christoph Lameter
2007-04-02 23:03 ` Bjorn Helgaas
2007-04-02 15:44 ` Christoph Lameter
2007-04-02 16:18 ` Christoph Lameter
2007-04-02 20:50 ` [PATCH 1/2] Generic Virtual Memmap suport for SPARSEMEM Dave Hansen
2007-04-02 21:00 ` Christoph Lameter
2007-04-02 21:22 ` Dave Hansen
2007-04-02 21:31 ` Christoph Lameter
2007-04-02 21:42 ` Dave Hansen
2007-04-02 21:53 ` Christoph Lameter
2007-04-02 22:05 ` Dave Hansen
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