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bootmem, x86: Fix 32bit numa system without RAM on node 0

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When 32bit numa is used, free_all_bootmem() will still only go over with
node id 0.

If node 0 doesn't have RAM installed, the lowest populated node
becomes low RAM.

This one fixes BOOTMEM path by iterating over the bdata_list.

-v3: add more comments, and fix bootmem path too.
-v4: seperate from one big patch

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <4BB416D7.6090203@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
Yinghai Lu 2010-03-31 20:45:27 -07:00 committed by H. Peter Anvin
parent 337998587f
commit aa235fc712
1 changed files with 7 additions and 1 deletions
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8
mm/bootmem.c
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@ -312,7 +312,13 @@ unsigned long __init free_all_bootmem(void)
*/
return free_all_memory_core_early(MAX_NUMNODES);
#else
return free_all_bootmem_core(NODE_DATA(0)->bdata);
unsigned long total_pages = 0;
bootmem_data_t *bdata;
list_for_each_entry(bdata, &bdata_list, list)
total_pages += free_all_bootmem_core(bdata);
return total_pages;
#endif
}