Re: [PATCH] mm,x86: fix span coverage in e820_all_mapped()

[H. Peter Anvin]

On 12/10/2013 01:06 PM, Yinghai Lu wrote:
> On Tue, Dec 10, 2013 at 1:06 AM, Xishi Qiu <qiuxishi@xxxxxxxxxx> wrote:
>> In the following case, e820_all_mapped() will return 1.
>> A < start < B-1 and B < end < C, it means <start, end> spans two regions.
>> <start, end>:           [start - end]
>> e820 addr:          ...[A - B-1][B - C]...
> 
> should be [start, end) right?
> and
> [A, B),[B, C)
> 

What happens if it spans more than two regions?

	-hpa


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