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powerpc/powernv: Disable interrupts while taking phb->lock
authorMichael Ellerman <michael@ellerman.id.au>
Sun, 12 Feb 2012 14:28:20 +0000 (14:28 +0000)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Tue, 14 Feb 2012 04:01:39 +0000 (15:01 +1100)
We need to disable interrupts when taking the phb->lock. Otherwise
we could deadlock with pci_lock taken from an interrupt.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

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