[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-devel] Linux: PG_pinned vs. PG_foreign


  • To: Jan Beulich <jbeulich@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: Keir Fraser <keir@xxxxxxxxxxxxx>
  • Date: Mon, 15 Jan 2007 10:10:59 +0000
  • Delivery-date: Mon, 15 Jan 2007 02:10:39 -0800
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: Acc4jXPvsmaxQaSAEdukcwAX8io7RQ==
  • Thread-topic: [Xen-devel] Linux: PG_pinned vs. PG_foreign

On 15/1/07 09:38, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote:

> Is it intentional that these two both use PG_arch_1? It seems at least risky
> to me... And if intended, it would certainly deserve a comment. (I was about
> to utilize PG_pinned for indicating pinned highmem-allocated PTEs when I
> realized this collision.)

There's no reason to have them use the same bit if there's a PG_arch_2
available. It was probbaly laziness on my part when I realised that (so far)
ForeignPage and Pinned are mutually exclusive.

 -- Keir


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel


 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.