Re: [PATCH v3 07/11] IB/core: Ensure we map P2P memory correctly in rdma_rw_ctx_[init|destroy]()

Looks fine, Reviewed-by: Christoph Hellwig

[PATCH v3 07/11] IB/core: Ensure we map P2P memory correctly in rdma_rw_ctx_[init|destroy]()

In order to use PCI P2P memory pci_p2pmem_[un]map_sg() functions must be called to map the correct PCI bus address. To do this, check the first page in the scatter list to see if it is P2P memory or not. At the moment, scatter lists that contain P2P memory must be homogeneous so if the first page