Messages in this thread | | | Date | Wed, 15 Aug 2007 19:15:54 -0700 (PDT) | From | Christoph Lameter <> | Subject | Re: [PATCH 0/24] make atomic_read() behave consistently across all architectures |
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On Thu, 16 Aug 2007, Paul Mackerras wrote:
> > We don't need to reload sk->sk_prot->memory_allocated here. > > Are you sure? How do you know some other CPU hasn't changed the value > in between?
The cpu knows because the cacheline was not invalidated.
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