iucv: provide second per-cpu IUCV command parameter block
Some of the IUCV commands can be invoked in interrupt context. Those commands need a different per-cpu IUCV command parameter block, otherwise they might overwrite an IUCV command parameter of a not yet finished IUCV command invocation in process context. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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