dma-remap: support DMA_ATTR_NO_KERNEL_MAPPING

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Do not waste vmalloc space on allocations that do not require a mapping
into the kernel address space.

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

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Christoph Hellwig 2018-11-04 17:51:50 +01:00

parent bfd56cd605

commit e440e26a02

1 changed files with 9 additions and 2 deletions

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kernel/dma/remap.c

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