On 04/24/2014 03:08 PM, Andy Lutomirski wrote:
> This rewrites a bunch of the vdso code. After these patches, the vvar
> and hpet pages are mapped directly after the vdso text on all five vdso
> variants. The fixmaps are gone on 64-bit systems.
>
> It would be possible to build the x32 vdso the normal way on top of
> these patches.
>
> I haven't touched the pvclock code. I'd want to understand why it
> exists, why it isn't using rdtsc, and why it has two rdtsc_barrier calls
> before rearranging it. In a discussion with Marcello Tosatti, I think
> we concluded that the kvmclock code could be significantly simplified
> and sped up without breaking anything, but I want to save that for
> later.
>
> This should apply to -linus or to tip/x86/vdso. It's also here:
>
> https://git.kernel.org/cgit/linux/kernel/git/luto/linux.git/log/?h=vdso/cleanups
>
> and it has survived the build bot for a day.
>
This doesn't apply cleanly on top of v3.15-rc2. Could I ask you do
rebase it again?
-hpa
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