From: Andi Kleen <ak@suse.de>
To: Jes Sorensen <jes@sgi.com>
Cc: Robin Holt <holt@sgi.com>,
linux-kernel@vger.kernel.org,
Nick Piggin <nickpiggin@yahoo.com.au>,
Hugh Dickins <hugh@veritas.com>, Carsten Otte <cotte@de.ibm.com>,
bjorn_helgaas@hp.com
Subject: Re: [patch] do_no_pfn
Date: Tue, 20 Jun 2006 11:35:53 +0200 [thread overview]
Message-ID: <200606201135.53824.ak@suse.de> (raw)
In-Reply-To: <4497BBFE.6000703@sgi.com>
> One struct page for a random single page here, another for a single
> random page there. And the risk that someone will start walking the
> pages and dereference and cause data corruption. As explained before,
> it's a bad idea.
Note sure what your point is. Why should they cause memory corruption?
Allowing struct page less VM is worse. If you add that then people
will use it for other stuff, and eventually we got a two class
VM. All not very good.
-Andi
next prev parent reply other threads:[~2006-06-20 9:36 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-19 9:19 [patch] do_no_pfn Jes Sorensen
2006-06-19 13:06 ` Andi Kleen
2006-06-19 22:49 ` Robin Holt
2006-06-20 8:01 ` Jes Sorensen
2006-06-20 8:13 ` Andi Kleen
2006-06-20 8:40 ` Jes Sorensen
2006-06-20 8:48 ` Andi Kleen
2006-06-20 9:12 ` Jes Sorensen
2006-06-20 9:35 ` Andi Kleen [this message]
2006-06-20 11:02 ` Robin Holt
2006-06-21 9:50 ` Jes Sorensen
2006-06-20 16:03 ` Bjorn Helgaas
2006-06-21 7:38 ` Carsten Otte
2006-06-20 8:58 ` Carsten Otte
2006-06-27 12:46 ` [patch] do_no_pfn - against latest git Jes Sorensen
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