From: David S. Miller <davem@davemloft.net>
Date: Tue, 9 Sep 2008 00:21:07 +0000 (-0700)
Subject: sparc64: Disable timer interrupts in fixup_irqs().
X-Git-Tag: v2.6.27-rc6~2^2
X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=2eb2f77900d62796934bcd43c4089e444cf1179e;p=linux-2.6-omap-h63xx.git

sparc64: Disable timer interrupts in fixup_irqs().

When a CPU is offlined, we leave the timer interrupts disabled
because fixup_irqs() does not explicitly take care of that case.

Fix this by invoking tick_ops->disable_irq().

Based upon analysis done by Paul E. McKenney.

Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c
index 9b6689d9d57..23963882bc1 100644
--- a/arch/sparc64/kernel/irq.c
+++ b/arch/sparc64/kernel/irq.c
@@ -792,6 +792,8 @@ void fixup_irqs(void)
 		}
 		spin_unlock_irqrestore(&irq_desc[irq].lock, flags);
 	}
+
+	tick_ops->disable_irq();
 }
 #endif