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    SubjectRe: interrupt - spin lock question
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    On Mon, 2002-03-04 at 01:33, sridharv@ufl.edu wrote:

    > ok things are clear now. so the spin_lock_irq friends are actually for 2
    > purposes - preventing racing from interrupts and from SMP. so if SMP is not
    > chosen only the local_irq_disable() part works right??
    >
    > do { local_irq_disable(); spin_lock(lock); } while (0)

    Correct. Although, you would want to use spin_lock_irqsave most of the
    time, not spin_lock_irq (difference is, the stored flags value is used
    to restore interrupts to there previous condition instead of
    unconditionally reenable them).

    Btw, Go Gators!

    Robert Love

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