Re: [PATCH 20/43] x86/entry: Clean up SYSENTER_stack code

[Peter Zijlstra]

On Sat, Nov 25, 2017 at 09:26:38AM -0800, Andy Lutomirski wrote:
> On Sat, Nov 25, 2017 at 9:10 AM, Borislav Petkov <bp@xxxxxxxxx> wrote:
> > On Sat, Nov 25, 2017 at 06:03:36PM +0100, Thomas Gleixner wrote:
> >> > Maybe I should rename cpu_tss to cpu_tss_rw in that patch.
> >>
> >> For clarity that would be nice.
> >
> > + a comment stating the alias mapping. It took tglx and me a while on
> > IRC to figure it out. :-)
> 
> I'm adding this comment to the top of cpu_entry_area:
> 
> + * Every field is a virtual alias of some other allocated backing store.
> + * There is no direct allocation of a struct cpu_entry_area.

Right, thanks! That did take me a few minutes to sort as well :-)