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SubjectRe: [PATCH 01/26] x86-64, NUMA: Make dummy node initialization path similar to non-dummy ones
On 02/12/2011 09:10 AM, Tejun Heo wrote:
> Dummy node initialization in initmem_init() didn't initialize apicid
> to node mapping and set cpu to node mapping directly by caling
> numa_set_node(), which is different from non-dummy init paths.
>
> Update it such that they behave similarly. Initialize apicid to node
> mapping and call numa_init_array(). The actual cpu to node mapping is
> handled by init_cpu_to_node() later.
>
> Signed-off-by: Tejun Heo <tj@kernel.org>
> Cc: Yinghai Lu <yinghai@kernel.org>
> Cc: Brian Gerst <brgerst@gmail.com>
> Cc: Cyrill Gorcunov <gorcunov@gmail.com>
> Cc: Shaohui Zheng <shaohui.zheng@intel.com>
> Cc: David Rientjes <rientjes@google.com>
> Cc: Ingo Molnar <mingo@elte.hu>
> Cc: H. Peter Anvin <hpa@linux.intel.com>
> ---
> arch/x86/mm/numa_64.c | 5 +++--
> 1 files changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
> index f548fbf..ea5dd48 100644
> --- a/arch/x86/mm/numa_64.c
> +++ b/arch/x86/mm/numa_64.c
> @@ -623,10 +623,11 @@ void __init initmem_init(unsigned long start_pfn, unsigned long last_pfn,
> memnodemap[0] = 0;
> node_set_online(0);
> node_set(0, node_possible_map);
> - for (i = 0; i < nr_cpu_ids; i++)
> - numa_set_node(i, 0);
> + for (i = 0; i < MAX_LOCAL_APIC; i++)
> + set_apicid_to_node(i, NUMA_NO_NODE);
> memblock_x86_register_active_regions(0, start_pfn, last_pfn);
> setup_node_bootmem(0, start_pfn << PAGE_SHIFT, last_pfn << PAGE_SHIFT);
> + numa_init_array();
> }
>
> unsigned long __init numa_free_all_bootmem(void)

Acked-by: Yinghai Lu <yinghai@kernel.org>


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