How to allocate hugepage in kernel module?

J.Hwan Kim frog1120 at gmail.com
Thu Aug 9 20:00:12 EDT 2012


I set the __GFP_COMP flag to __get_free_pages(),
but the result was same.

2012년 08월 09일 17:59, Denis Kirjanov 쓴 글:
> Forgot to CC kernelnewbies:
>
> Did you pass the __GFP_COMP flag to __get_free_pages?
>
>
> On 8/9/12, J.Hwan Kim<frog1120 at gmail.com>  wrote:
>> Hi, everyone
>>
>> How can I allocate physically contiguous huge page in kernel module ?
>> The routine of _get_fee_pages() fails whenever there are much free
>> memory in system.
>>
>> I found the procedures for set hugepages with sysctl or
>> /proc/sys/vm/nr_hugepages
>> but I've not found the api for allocate the huge page in kernel.
>>
>> Thanks in advnace.
>>
>> Best Regards,
>> J.Hwan Kim
>>
>>
>>
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>




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