Messages in this thread |  | | Date | Fri, 12 Oct 2001 20:30:20 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: [Lse-tech] Re: RFC: patch to allow lock-free traversal of lists with insertion |
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On Fri, 12 Oct 2001, Davide Libenzi wrote: > > Suppose that p and *p are on two different cache partitions and the > invalidation order that comes from the wmb() cpu is 1) *p 2) p > Suppose that the partition when *p lies is damn busy and the one where > p lies is free. > The reader cpu could pickup the value of p before the value of *p by > reading the old value of a
Ahh.. I misunderstood. You are arguing for the rmb() even if the CPU doesn't speculate addresses for loads. Yes, I agree.
Linus
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