Re: [PATCH] [5/7] Readd rdmsrl_safe

From: Andi Kleen
Date: Fri Mar 21 2008 - 14:03:34 EST


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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