Kumar Gala writes:
> * Added allocation and initialization of the irq stacks. We limit the
> stacks to be in lowmem for ppc32.
> * Implemented ppc32 versions of call_do_softirq() and call_handle_irq()
> to switch the stack pointers
> * Reworked how we do stack overflow detection. We now keep around the
> limit of the stack in the thread_struct and compare against the limit
> to see if we've overflowed. We can now use this on ppc64 if desired.
Mostly looks great. One minor nit is that this ifdef could disappear
entirely now:
> @@ -352,7 +356,7 @@ void __init init_IRQ(void)
> {
> if (ppc_md.init_IRQ)
> ppc_md.init_IRQ();
> -#ifdef CONFIG_PPC64
> +#ifdef CONFIG_IRQSTACKS
> irq_ctx_init();
> #endif
Since it looks pretty much exactly like what 64-bit already does, and
it's under a config option, I withdraw my objection to it going into
2.6.26.
Paul.
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