dma-direct: refine dma_direct_alloc zone selection

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We need to take the DMA offset and encryption bit into account when
selecting a zone.  User the opportunity to factor out the zone
selection into a helper for reuse.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>

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Christoph Hellwig 2018-09-06 20:30:54 -04:00

parent a20bb05837

commit 7d21ee4c71

1 changed files with 21 additions and 10 deletions

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kernel/dma/direct.c

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