Re: [PATCH 2/3] x86/vdso: Allow clock specific mult and shift values

[Huw Davies]

On Sun, Apr 14, 2019 at 12:53:32PM +0200, Thomas Gleixner wrote:
> So it stays in the same cache line, but as we move the VDSO to generic
> code, the mask field needs to stay and this will make basetime[CLOCK_MONOTONIC] 
> overlap into the next cache line.

Thanks for the great review; this is a good point.

> See https://lkml.kernel.org/r/alpine.DEB.2.21.1902231727060.1666@xxxxxxxxxxxxxxxxxxxxxxx
> for an alternate solution to this problem, which avoids this and just gives
> CLOCK_MONOTONIC_RAW a separate storage space alltogether.

I can certainly do this for the x86 vdso.  Would that be useful or
should I wait for Vincenzo's work on the generic vdso first?

Many thanks,
Huw.