[PATCH] Defer processing of interrupts when the CPU wakes from sleepmode

[Paul Mackerras]

Liu Dave writes:

> Thanks Paul for this patch. The patch looks like very nice.
> But the users have to be aware of the LINK register (LR) not corrupted.

Yes, if you set the _TLF_SLEEPING bit, you need to know what it
does. :)

> So, does power management patch from Scott Wood need to respin?

No, because Scott's original patch did that too.

> BTW, why the fast_exception_return does *not* need clear the reservation
> with stwcx.?

Because we haven't done anything that could have left a dangling
reservation set.

Paul.