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ae5a2c1c9b
This is a preparatory patch to make common code for updating of NODE_DATA() of ia64 between boottime and hotplug. Current code remembers pgdat address in mem_data which is used at just boot time. But its information can be used at hotplug time by moving to global value. The next patch uses this array. Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>