Memoryless nodes: Allow profiling data to fall back to other nodes

Memoryless nodes: Allow profiling data to fall back to other nodes

Processors on memoryless nodes must be able to fall back to remote nodes in
order to get a profiling buffer.  This may lead to excessive NUMA traffic but
I think we should allow this rather than failing.

Signed-off-by: Christoph Lameter <[email protected]>
Acked-by: Nishanth Aravamudan <[email protected]>
Acked-by: Lee Schermerhorn <[email protected]>
Acked-by: Bob Picco <[email protected]>
Cc: KAMEZAWA Hiroyuki <[email protected]>
Cc: Mel Gorman <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>