mm/memblock: cleanup early_node_map[] related comments

Commit 0ee332c1 ("memblock: Kill early_node_map[]") removed
early_node_map[].  Clean up the comments to comply with that change.
Signed-off-by: NWanpeng Li <liwanp@linux.vnet.ibm.com>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Gavin Shan <shangw@linux.vnet.ibm.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

include/linux/memblock.h

@@ -70,8 +70,7 @@ void __next_mem_pfn_range(int *idx, int nid, unsigned long *out_start_pfn,
  * @p_end: ptr to ulong for end pfn of the range, can be %NULL
  * @p_nid: ptr to int for nid of the range, can be %NULL
  *
- * Walks over configured memory ranges.  Available after early_node_map is
- * populated.
+ * Walks over configured memory ranges.
  */
 #define for_each_mem_pfn_range(i, nid, p_start, p_end, p_nid)		\
 	for (i = -1, __next_mem_pfn_range(&i, nid, p_start, p_end, p_nid); \

mm/nobootmem.c

@@ -162,8 +162,6 @@ unsigned long __init free_all_bootmem(void)
 	 * We need to use MAX_NUMNODES instead of NODE_DATA(0)->node_id
 	 *  because in some case like Node0 doesn't have RAM installed
 	 *  low ram will be on Node1
-	 * Use MAX_NUMNODES will make sure all ranges in early_node_map[]
-	 *  will be used instead of only Node0 related
 	 */
 	return free_low_memory_core_early(MAX_NUMNODES);
 }

mm/page_alloc.c

@@ -4931,7 +4931,7 @@ void __init free_area_init_nodes(unsigned long *max_zone_pfn)
 			       zone_movable_pfn[i] << PAGE_SHIFT);
 	}
 
-	/* Print out the early_node_map[] */
+	/* Print out the early node map */
 	printk("Early memory node ranges\n");
 	for_each_mem_pfn_range(i, MAX_NUMNODES, &start_pfn, &end_pfn, &nid)
 		printk("  node %3d: [mem %#010lx-%#010lx]\n", nid,