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 <[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.
Alpha does the switch in PALmode, which is never interruptable. r~
