Re: [PATCH] mm: respect pre-allocated storage mapping for memmap

[zhong jiang <zhongjiang@huawei.com>]

On 2017/1/16 22:43, Anshuman Khandual wrote:
> On 01/16/2017 07:08 PM, zhongjiang wrote:
>> From: zhong jiang <zhongjiang@huawei.com>
>>
>> At present, we skip the reservation storage by the driver for
>> the zone_dvice. but the free pages set aside for the memmap is
>> ignored. And since the free pages is only used as the memmap,
>> so we can also skip the corresponding pages.
> But these free pages used for memmap mapping should also be accounted
> inside the zone, no ?
  That's confusing.  because first_pfn for zone_device after reserve and free page for
 memmap mapping.  That is used as a actuallly pfn for zone_device.

 Thanks
 zhongjiang
> --
> To unsubscribe, send a message with 'unsubscribe linux-mm' in
> the body to majordomo@kvack.org.  For more info on Linux MM,
> see: http://www.linux-mm.org/ .
> Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
>
>


--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org.  For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>