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SubjectRe: [RFC 00/15] x86_64: Optimize percpu accesses
Ingo Molnar wrote:
> Note that the zero-based percpu problems are completely unrelated to
> stackprotector. I was able to hit them with a stackprotector-disabled
> gcc-4.2.3 environment.

The only reason we need to keep a zero-based pda is to support
stack-protector. If we drop drop it, we can drop the pda - and its
special zero-based properties - entirely.

J


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