Messages in this thread Patch in this message | | | Date | Thu, 1 Apr 2010 22:57:59 GMT | From | tip-bot for Yinghai Lu <> | Subject | [tip:x86/urgent] bootmem, x86: Fix 32bit numa system without RAM on node 0 |
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Commit-ID: aa235fc712f379d4194cff9217f07026c452c141 Gitweb: http://git.kernel.org/tip/aa235fc712f379d4194cff9217f07026c452c141 Author: Yinghai Lu <yinghai@kernel.org> AuthorDate: Wed, 31 Mar 2010 20:45:27 -0700 Committer: H. Peter Anvin <hpa@zytor.com> CommitDate: Thu, 1 Apr 2010 14:41:19 -0700
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: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <4BB416D7.6090203@kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com> --- mm/bootmem.c | 8 +++++++- 1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/mm/bootmem.c b/mm/bootmem.c index 2058cb7..ba37d62 100644 --- a/mm/bootmem.c +++ b/mm/bootmem.c @@ -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 }
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