linux-kernel - Re: [PATCH 2/5] XEN: Remove the base argument from x86_init.paging.pagetable_setup

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Message-ID: <alpine.LFD.2.02.1208211804020.2856@ionos>
Date:	Tue, 21 Aug 2012 18:04:19 +0200 (CEST)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Attilio Rao <attilio.rao@...rix.com>
cc:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Ian Campbell <Ian.Campbell@...rix.com>,
	Stefano Stabellini <Stefano.Stabellini@...citrix.com>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"x86@...nel.org" <x86@...nel.org>,
	"xen-devel@...ts.xensource.com" <xen-devel@...ts.xensource.com>
Subject: Re: [PATCH 2/5] XEN: Remove the base argument from
 x86_init.paging.pagetable_setup_start PVOPS

On Tue, 21 Aug 2012, Attilio Rao wrote:
> On 21/08/12 16:41, Thomas Gleixner wrote:
> > On Tue, 21 Aug 2012, Attilio Rao wrote:
> >    
> > > diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
> > > index 1019156..7999cef 100644
> > > --- a/arch/x86/mm/init_32.c
> > > +++ b/arch/x86/mm/init_32.c
> > > @@ -445,14 +445,17 @@ static inline void permanent_kmaps_init(pgd_t
> > > *pgd_base)
> > >   }
> > >   #endif /* CONFIG_HIGHMEM */
> > > 
> > > -void __init native_pagetable_setup_start(pgd_t *base)
> > > +void __init native_pagetable_setup_start(void)
> > >   {
> > >   	unsigned long pfn, va;
> > > +	pgd_t *base;
> > >   	pgd_t *pgd;
> > >      
> > 	pgd_t *pgd, *base = swapper_pg_dir;
> > 
> > Please. No need to add 5 lines just for this.
> > 
> >    
> 
> I honestly thought it was cleaner -- what is exactly your preferred choice?
> Just use swapper_pg_dir directly in the 2 places needing it?

Either that or the line I wrote above.
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