cxl: Only check pid for userspace contexts
cxl: Only check pid for userspace contexts

We only need to check the pid attached to this context for userspace contexts.
Kernel contexts can skip this check.

Signed-off-by: Michael Neuling <7b0ab45a730e48a69239010b5b8fe5fa4e8eaac6@neuling.org>
Acked-by: Ian Munsie <2796b2a6f60f1cdadaf10e577f7c9240e2ad3d38@au1.ibm.com>
Signed-off-by: Michael Ellerman <864f124608374e06e4da1fa5d2e47ed839b95411@ellerman.id.au>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs