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(parent: 316e559) | patch
sparc64: Prevent sparc64 from invoking irq handlers on offline CPUs
authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Wed, 3 Sep 2008 09:15:30 +0000 (02:15 -0700)
committerDavid S. Miller <davem@davemloft.net>
Wed, 3 Sep 2008 09:15:30 +0000 (02:15 -0700)
commite3721d7a7f7c4082ccc715cdc4f832a494e1e749
tree8bc8a49447713d712aa0f66dd5c9c1e6d44a33b6tree | snapshot
parent316e55902a4795fd6b02fd200d00dc238fc0ecd6commit | diff
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>
arch/sparc64/kernel/smp.c diff | blob | history
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