dma-mapping: remove the DMA_ATTR_WRITE_BARRIER flag

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This flag is not implemented by any backend and only set by the ib_umem
module in a single instance.

Link: https://lore.kernel.org/r/20191113073214.9514-2-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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Christoph Hellwig 2019-11-13 08:32:13 +01:00 • committed by Jason Gunthorpe

parent 64c264872b

commit 7283fff8b5

3 changed files with 3 additions and 29 deletions

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5

include/linux/dma-mapping.h

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