[PATCH 02/12] mm: fix boundary checking in free_bootmem_core fix
- From: Yinghai Lu <yhlu.kernel.send@xxxxxxxxx>
- Date: Wed, 19 Mar 2008 14:03:33 -0700
[PATCH] mm: fix boundary checking in free_bootmem_core fix
[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
@@ -432,7 +432,9 @@ 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)
--
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