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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This archive was generated by hypermail 2b29 : Thu Mar 07 2002 - 21:00:31 EST