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| H A D | evtchn.c | diff 3f5e554f669098c84c82ce75e7577f7e0f3fccde Fri May 28 17:28:27 CDT 2010 Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> xen/evtchn: don't do unbind_from_irqhandler under spinlock
unbind_from_irqhandler can end up doing /proc operations, which can't
happen under a spinlock. So before removing the IRQ handler,
disable the irq under the port_user lock (masking the underlying event
channel and making sure the irq handler isn't running concurrently and
won't start running), then remove the handler without the lock.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
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