how can I get the ZONE_DMA size ??

[Valdis.Kletnieks at vt.edu]

On Mon, 12 May 2014 15:14:11 +0800, RS said:
>So, how can I get the ZONE_DMA real size ? Is there any kernel functions or configuration files ? I want to get the accurate number.

What question are you trying to answer with that number?  There's a good
chance that you're looking for something else entirely...
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