RFC x86: try to remove arch_get_ram_range

want to remove arch_get_ram_range, and use early_node_map instead.

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>

Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 41c6e3a..e25b6b2 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2932,10 +2932,14 @@
 void __init work_with_active_regions(int nid, work_fn_t work_fn, void *data)
 {
 	int i;
+	int ret;
 
-	for_each_active_range_index_in_nid(i, nid)
-		work_fn(early_node_map[i].start_pfn, early_node_map[i].end_pfn,
-			data);
+	for_each_active_range_index_in_nid(i, nid) {
+		ret = work_fn(early_node_map[i].start_pfn,
+			      early_node_map[i].end_pfn, data);
+		if (ret)
+			break;
+	}
 }
 /**
  * sparse_memory_present_with_active_regions - Call memory_present for each active range