Messages in this thread | ![/](/images/icornerl.gif) | | Date | Sun, 10 Apr 2005 00:23:57 -0700 | From | Richard Henderson <> | Subject | Re: [patch] sched: unlocked context-switches |
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On Sat, Apr 09, 2005 at 03:46:12PM -0700, David S. Miller wrote: > On Sat, 09 Apr 2005 19:22:23 +1000 > Benjamin Herrenschmidt <benh@kernel.crashing.org> 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.
Alpha does the switch in PALmode, which is never interruptable.
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