spinlock_irqsafe() vs. global_cli()

Manfred Spraul (manfreds@colorfullife.com)
Wed, 19 May 1999 11:57:16 +0200

What's the performance advantage of spinlock_irqsave() vs. global_cli()?

On UP, they are identical, but how large is the advantage on SMP
computers?
How slow is global_cli() if the other processors do not own the
global_irq_lock?
Any estimations?

--
	Manfred




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