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From: Hollis Blanchard <hollisb@us.ibm.com>
To: "Magenheimer, Dan (HP Labs Fort Collins)" <dan.magenheimer@hp.com>
Cc: xen-ppc-devel@lists.xensource.com, xen-devel@lists.xensource.com,
	xen-ia64-devel@lists.xensource.com
Subject: Re: Linux PG_arch_1 conflict
Date: Fri, 10 Mar 2006 14:59:10 -0600	[thread overview]
Message-ID: <4411E89E.9090101@us.ibm.com> (raw)
In-Reply-To: <516F50407E01324991DD6D07B0531AD59FF3C2@cacexc12.americas.cpqcorp.net>

Magenheimer, Dan (HP Labs Fort Collins) wrote:
> See previous discussion at:
> 
> http://lists.xensource.com/archives/html/xen-devel/2005-12/msg00238.html
> 
> 
> The issue is that PG_arch_1 is reserved for arch-specific
> usage, the paravirtualization changes for Xenlinux utilize
> it (to mark foreign pages) because it was otherwise unused
> in Linux/x86.  But Xen is no longer an arch.
> 
> Grep'ing for "PageForeign" in -sparse will show most (all?)
> of the actual uses of it.  Nearly all are in x86-specific
> code.  But one is in netback_init().

That thread seems to already have a solution. Has anybody run it past 
Linux MM people? (Adding xen-devel to CC for greater exposure.)

-- 
Hollis Blanchard
IBM Linux Technology Center

       reply	other threads:[~2006-03-10 20:59 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <516F50407E01324991DD6D07B0531AD59FF3C2@cacexc12.americas.cpqcorp.net>
2006-03-10 20:59 ` Hollis Blanchard [this message]
2006-03-10 21:11 Linux PG_arch_1 conflict Magenheimer, Dan (HP Labs Fort Collins)
2006-03-11  9:31 ` Keir Fraser
  -- strict thread matches above, loose matches on Subject: below --
2006-03-13 21:20 Magenheimer, Dan (HP Labs Fort Collins)

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