linux-kernel - Re: [Xen-devel] [PATCH v2 4/8] xen: Use the correctly the Xen memory terminologies

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Message-ID: <alpine.DEB.2.02.1508061205190.11337@kaball.uk.xensource.com>
Date:	Thu, 6 Aug 2015 12:06:00 +0100
From:	Stefano Stabellini <stefano.stabellini@...citrix.com>
To:	Julien Grall <julien.grall@...rix.com>
CC:	<xen-devel@...ts.xenproject.org>, <linux-fbdev@...r.kernel.org>,
	"H. Peter Anvin" <hpa@...or.com>, Jiri Slaby <jslaby@...e.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	<stefano.stabellini@...citrix.com>,
	Russell King <linux@....linux.org.uk>,
	<linux-scsi@...r.kernel.org>, <x86@...nel.org>,
	Tomi Valkeinen <tomi.valkeinen@...com>,
	<linux-input@...r.kernel.org>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	<ian.campbell@...rix.com>,
	"James E.J. Bottomley" <JBottomley@...n.com>,
	Boris Ostrovsky <boris.ostrovsky@...cle.com>,
	Ingo Molnar <mingo@...hat.com>,
	<linux-arm-kernel@...ts.infradead.org>,
	Juergen Gross <jgross@...e.com>,
	"Wei Liu" <wei.liu2@...rix.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	<linux-kernel@...r.kernel.org>,
	David Vrabel <david.vrabel@...rix.com>,
	<netdev@...r.kernel.org>, <linuxppc-dev@...ts.ozlabs.org>,
	Roger Pau Monné <roger.pau@...rix.com>
Subject: Re: [Xen-devel] [PATCH v2 4/8] xen: Use the correctly the Xen memory
 terminologies

On Thu, 6 Aug 2015, Julien Grall wrote:
> Hi,
> 
> 
> On 04/08/15 19:12, Julien Grall wrote:
> > diff --git a/include/xen/page.h b/include/xen/page.h
> > index c5ed20b..e7e1425 100644
> > --- a/include/xen/page.h
> > +++ b/include/xen/page.h
> > @@ -3,9 +3,9 @@
> >  
> >  #include <asm/xen/page.h>
> >  
> > -static inline unsigned long page_to_mfn(struct page *page)
> > +static inline unsigned long page_to_gfn(struct page *page)
> >  {
> > -	return pfn_to_mfn(page_to_pfn(page));
> > +	return pfn_to_gfn(page_to_pfn(page));
> >  }
> 
> I've just noticed that there is a function gfn_to_page used for KVM.
> 
> Maybe I should rename page_to_gfn to xen_page_to_gfn to avoid confusion
> with KVM one?

Yeah, prepending xen would help to avoid namespace pollution.
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