From: "Mike Rapoport (Microsoft)" <rppt@xxxxxxxxxx>
sgi-ip27 is the only system that defines NODE_DATA() differently than
the rest of NUMA machines.
Add node_data array of struct pglist pointers that will point to
__node_data[node]->pglist and redefine NODE_DATA() to use node_data
array.
This will allow pulling declaration of node_data to the generic mm code
in the next commit.
Signed-off-by: Mike Rapoport (Microsoft) <rppt@xxxxxxxxxx>
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