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SubjectRe: [PATCH 03/35] x86/entry/32: Load task stack from x86_tss.sp1 in SYSENTER handler
On Wed, Apr 18, 2018 at 4:26 PM, Andi Kleen <> wrote:
> Seems like a hack. Why can't that be stored in a per cpu variable?

It *is* a percpu variable - the whole x86_tss structure is percpu.

I guess it could be a different (separate) percpu variable, but might
as well use the space we already have allocated.


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