Re: [PATCH 6/24] make atomic_read() behave consistently on frv
From: Herbert Xu
Date: Fri Aug 10 2007 - 20:55:33 EST
Chris Snook <csnook@xxxxxxxxxx> wrote:
>
> cpu_relax() contains a barrier, so it should do the right thing. For
> non-smp architectures, I'm concerned about interacting with interrupt
> handlers. Some drivers do use atomic_* operations.
What problems with interrupt handlers? Access to int/long must
be atomic or we're in big trouble anyway.
Cheers,
--
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Email: Herbert Xu ~{PmV>HI~} <herbert@xxxxxxxxxxxxxxxxxxx>
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