powerpc/rfi-flush: Make it possible to call setup_rfi_flush() again
For PowerVM migration we want to be able to call setup_rfi_flush() again after we've migrated the partition. To support that we need to check that we're not trying to allocate the fallback flush area after memblock has gone away (i.e., boot-time only). Signed-off-by:Michael Ellerman <mpe@ellerman.id.au> Signed-off-by:
Mauricio Faria de Oliveira <mauricfo@linux.vnet.ibm.com> Signed-off-by:
Michael Ellerman <mpe@ellerman.id.au>
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1e2a9fc7
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