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    SubjectRe: [PATCH 0/24] make atomic_read() behave consistently across all architectures
    On Thu, Aug 16, 2007 at 10:06:31AM +0200, Stefan Richter wrote:
    > >
    > > Do you (or anyone else for that matter) have an example of this?
    >
    > The only code I somewhat know, the ieee1394 subsystem, was perhaps
    > authored and is currently maintained with the expectation that each
    > occurrence of atomic_read actually results in a load operation, i.e. is
    > not optimized away. This means all atomic_t (bus generation, packet and
    > buffer refcounts, and some other state variables)* and likewise all
    > atomic bitops in that subsystem.

    Can you find an actual atomic_read code snippet there that is
    broken without the volatile modifier?

    Thanks,
    --
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