From: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Wed, 3 Sep 2008 09:15:30 +0000 (-0700)
Subject: sparc64: Prevent sparc64 from invoking irq handlers on offline CPUs
X-Git-Tag: v2.6.27-rc6~19^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4d084617fb0d025c42c242362d1f27d337e2d407;p=pandora-kernel.git

sparc64: Prevent sparc64 from invoking irq handlers on offline CPUs

Make sparc64 refrain from clearing a given to-be-offlined CPU's bit in the
cpu_online_mask until it has processed pending irqs.  This change
prevents other CPUs from being blindsided by an apparently offline CPU
nevertheless changing globally visible state.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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