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    Subject[PATCH] mm: make free_bootmem to loop bdata_list
    [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 <>
    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)
     \ /
      Last update: 2008-03-13 19:55    [W:0.022 / U:29.360 seconds]
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