[PATCH] mm: make free_bootmem to loop bdata_list

[Yinghai Lu]

[PATCH] mm: make free_bootmem to loop bdata_list

        [PATCH] mm: fix boundary checking in free_bootmem_core

make the free_bootmem_core could handle out of range case. we could use
bdata_list to make sure the range can be freed for sure.

so next time, we don't need to loop online nodes and could use
free_bootmem directly.

Signed-off-by: Yinghai Lu <yhlu.kernel@xxxxxxxxx>
Index: linux-2.6/mm/bootmem.c
===================================================================
--- linux-2.6.orig/mm/bootmem.c
+++ linux-2.6/mm/bootmem.c
@@ -427,7 +438,9 @@ int __init reserve_bootmem(unsigned long
 
 void __init free_bootmem(unsigned long addr, unsigned long size)
 {
-	free_bootmem_core(NODE_DATA(0)->bdata, addr, size);
+	bootmem_data_t *bdata;
+	list_for_each_entry(bdata, &bdata_list, list)
+		free_bootmem_core(bdata, addr, size);
 }
 
 unsigned long __init free_all_bootmem(void)