Messages in this thread | | | Date | Fri, 14 Jun 2019 17:08:27 +0200 | From | 'Christoph Hellwig' <> | Subject | Re: [PATCH 16/16] dma-mapping: use exact allocation in dma_alloc_contiguous |
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On Fri, Jun 14, 2019 at 04:05:33PM +0100, Robin Murphy wrote: > That said, I don't believe this particular patch should make any > appreciable difference - alloc_pages_exact() is still going to give back > the same base address as the rounded up over-allocation would, and > PAGE_ALIGN()ing the size passed to get_order() already seemed to be > pointless.
True, we actually do get the right alignment just about anywhere. Not 100% sure about the various static pool implementations, but we can make sure if any didn't we'll do that right thing once those get consolidated.
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