tree 30265b703433375b2e86f1b96997b4b4971f7be6
parent fa8410b355251fd30341662a40ac6b22d3e38468
author Boris Ostrovsky <boris.ostrovsky@oracle.com> 1470244947 -0400
committer David Vrabel <david.vrabel@citrix.com> 1472060680 +0100

xen/x86: Move irq allocation from Xen smp_op.cpu_up()

Commit ce0d3c0a6fb1 ("genirq: Revert sparse irq locking around
__cpu_up() and move it to x86 for now") reverted irq locking
introduced by commit a89941816726 ("hotplug: Prevent alloc/free
of irq descriptors during cpu up/down") because of Xen allocating
irqs in both of its cpu_up ops.

We can move those allocations into CPU notifiers so that original
patch can be reinstated.

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>