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dma-mapping: remove the DMA_ATTR_WRITE_BARRIER flag
authorChristoph Hellwig <hch@lst.de>
Wed, 13 Nov 2019 07:32:13 +0000 (08:32 +0100)
committerJason Gunthorpe <jgg@mellanox.com>
Thu, 14 Nov 2019 16:01:54 +0000 (12:01 -0400)
commit7283fff8b524b2f27438429aca458b232f5c5c8a
treeff5f32d6c4ed5968d8c7df5a2d8707d579d43baf
parent64c264872b8879e2ab9017eefe9514d4c045c60e
dma-mapping: remove the DMA_ATTR_WRITE_BARRIER flag

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>
Documentation/DMA-attributes.txt
drivers/infiniband/core/umem.c
include/linux/dma-mapping.h