Alan Cox (alan@lxorguk.ukuu.org.uk)
Wed, 14 Jan 1998 17:54:49 +0000 (GMT)
> So cli() don' t mask well critical code that can be managed also from
> others CPU, right? cli() clear interrupts only on the CPU that executed
> cli(), or no?
cli() masks all too well - it requires cross cpu messages and lock acquisitions
to do its job. spin_lock_and_irqsave() only affects the local cli state (to
avoid interrupt holding a spinlock by an irq handler wishing to claim it)
Alan
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This archive was generated by hypermail 2.0b3 on Wed 30 Dec 1998 - 10:17:19 EST