Hi Ishimatsu-san,
Thanks for the comments.
And I also found the some algorithm problems in patch2 ~ patch3.
I am working on it, and a v2 patchset is coming soon. :)
Thanks.
On 11/21/2012 01:46 PM, Yasuaki Ishimatsu wrote:
> Hi Tang,
>
> 2012/11/19 23:27, Tang Chen wrote:
>> From: Yasuaki Ishimatsu<isimatu.yasuaki@xxxxxxxxxxxxxx>
>>
>> If system can create movable node which all memory of the
>> node is allocated as ZONE_MOVABLE, setup_node_data() cannot
>> allocate memory for the node's pg_data_t.
>> So when memblock_alloc_nid() fails, setup_node_data() retries
>> memblock_alloc().
>>
>> Signed-off-by: Yasuaki Ishimatsu<isimatu.yasuaki@xxxxxxxxxxxxxx>
>> Signed-off-by: Lai Jiangshan<laijs@xxxxxxxxxxxxxx>
>> Signed-off-by: Tang Chen<tangchen@xxxxxxxxxxxxxx>
>> Reviewed-by: Wen Congyang<wency@xxxxxxxxxxxxxx>
>> Tested-by: Lin Feng<linfeng@xxxxxxxxxxxxxx>
>> ---
>> arch/x86/mm/numa.c | 9 +++++++--
>> 1 files changed, 7 insertions(+), 2 deletions(-)
>>
>> diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
>> index 2d125be..ae2e76e 100644
>> --- a/arch/x86/mm/numa.c
>> +++ b/arch/x86/mm/numa.c
>> @@ -224,9 +224,14 @@ static void __init setup_node_data(int nid, u64 start, u64 end)
>> } else {
>> nd_pa = memblock_alloc_nid(nd_size, SMP_CACHE_BYTES, nid);
>> if (!nd_pa) {
>> - pr_err("Cannot find %zu bytes in node %d\n",
>
>> + printk(KERN_WARNING "Cannot find %zu bytes in node %d\n",
>> nd_size, nid)
>
> Please change to use pr_warn().
>
> Thanks,
> Yasuaki Ishimatsu
>
>> - return;
>> + nd_pa = memblock_alloc(nd_size, SMP_CACHE_BYTES);
>> + if (!nd_pa) {
>> + pr_err("Cannot find %zu bytes in other node\n",
>> + nd_size);
>> + return;
>> + }
>> }
>> nd = __va(nd_pa);
>> }
>>
>
>
>
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