On Tue, Aug 25, 2020 at 01:30:41PM +0200, Marek Szyprowski wrote:
I really wonder what is the difference between this new API and
alloc_pages(GFP_DMA, n). Is this API really needed? I thought that this
is legacy thing to be removed one day...
The difference is that the pages returned are guranteed to be addressable
by the devie. This is a very important difference that matters for
a lot of use cases.
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