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    SubjectRe: [PATCH] Document Linux's memory barriers
    Duncan Sands writes:

    > On UP you at least need compiler barriers, right? You're in trouble if you think
    > you are writing in a certain order, and expect to see the same order from an
    > interrupt handler, but the compiler decided to rearrange the order of the writes...

    I'd be interested to know what the C standard says about whether the
    compiler can reorder writes that may be visible to a signal handler.
    An interrupt handler in the kernel is logically equivalent to a signal
    handler in normal C code.

    Surely there are some C language lawyers on one of the lists that this
    thread is going to?

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      Last update: 2006-03-08 23:14    [W:0.018 / U:153.236 seconds]
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