Commit aa235fc7 authored by Yinghai Lu's avatar Yinghai Lu Committed by H. Peter Anvin

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

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: default avatarYinghai Lu <>
LKML-Reference: <>
Signed-off-by: default avatarH. Peter Anvin <>
parent 33799858
......@@ -312,7 +312,13 @@ unsigned long __init free_all_bootmem(void)
return free_all_memory_core_early(MAX_NUMNODES);
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;
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