[PATCH] powerpc: Fix incorrect comment about interrupt stack allocation

[Anton Blanchard]

We now allow interrupt stacks anywhere in the first segment which can be
256M or 1TB. Fix the comment.

Signed-off-by: Anton Blanchard <anton at samba.org> 
---

Index: powerpc.git/arch/powerpc/kernel/setup_64.c
===================================================================
--- powerpc.git.orig/arch/powerpc/kernel/setup_64.c	2010-08-19 09:05:17.090741942 +1000
+++ powerpc.git/arch/powerpc/kernel/setup_64.c	2010-08-19 09:06:08.151991499 +1000
@@ -428,8 +428,8 @@ static void __init irqstack_early_init(v
 	unsigned int i;
 
 	/*
-	 * interrupt stacks must be under 256MB, we cannot afford to take
-	 * SLB misses on them.
+	 * Interrupt stacks must be in the first segment since we
+	 * cannot afford to take SLB misses on them.
 	 */
 	for_each_possible_cpu(i) {
 		softirq_ctx[i] = (struct thread_info *)