Re: [patch] sched: unlocked context-switches

On Sat, 09 Apr 2005 19:22:23 +1000
Benjamin Herrenschmidt <[email protected]> wrote:

> ppc64 already has a local_irq_save/restore in switch_to, around the low
> level asm bits, so it should be fine.

Sparc64 essentially does as well.  In fact, it uses an IRQ disable
which is stronger  than local_irq_save in that it disables reception
of CPU cross-calls as well.
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