linux-kernel - Re: [PATCH] [5/7] Readd rdmsrl

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Message-ID: <20080321180612.GK2346@one.firstfloor.org>
Date:	Fri, 21 Mar 2008 19:06:12 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Andi Kleen <andi@...stfloor.org>, andreas.herrmann3@....com,
	mingo@...e.hu, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [5/7] Readd rdmsrl_safe

On Fri, Mar 21, 2008 at 06:58:08PM +0100, Thomas Gleixner wrote:
> On Fri, 21 Mar 2008, Andi Kleen wrote:
> 
> > On Fri, Mar 21, 2008 at 06:06:13PM +0100, Thomas Gleixner wrote:
> > > On Wed, 12 Mar 2008, Andi Kleen wrote:
> > > > RDMSR for 64bit values with exception handling.
> > > > 
> > > > Makes it easier to deal with 64bit valued MSRs. The old 64bit code
> > > > base had that too as checking_rdmsrl(), but it got dropped somehow. 
> > > 
> > > Yup, no users.
> > > 
> > > > +#define rdmsrl_safe(msr,p) \
> > > > +	({ int __err; *(p) = native_read_msr_safe(msr, &__err); __err; })
> > > > +
> > > 
> > > static inline please
> > 
> > Well all of paravirt.h uses macros. I did the same for consistency.
> 
> consistency ?

At least I consider it clean and consistent to use similar
style as the other code in that file for new code I add.

> 
> > If you want inlines it would be better to just convert it all in one
> > go (but please only after this patch was applied)
> 
> Of course. We don't want to burden work on your shoulders.

Well you signed up for the work yourself last year ;-) It was your choice.

-Andi
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