[PATCH -v4 2/2] bootmem, x86: Fix 32bit numa system without RAM onNode0
From: Yinghai Lu
Date: Wed Mar 31 2010 - 23:47:25 EST
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, We need to go with node1
because early_node_map still use 1 for all ranges, and ram from node1
become low ram.
this one fixes BOOTMEM path by loop bdata_list.
-v3: add more comments, and fix bootmem path too.
-v4: seperate from one big patch
Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>
---
mm/bootmem.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
Index: linux-2.6/mm/bootmem.c
===================================================================
--- linux-2.6.orig/mm/bootmem.c
+++ linux-2.6/mm/bootmem.c
@@ -312,7 +312,13 @@ unsigned long __init free_all_bootmem(vo
*/
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
}
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