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RDMA/mlx5: Do not allow rereg of a ODP MR
authorJason Gunthorpe <jgg@mellanox.com>
Tue, 1 Oct 2019 15:38:16 +0000 (12:38 -0300)
committerJason Gunthorpe <jgg@mellanox.com>
Fri, 4 Oct 2019 18:54:21 +0000 (15:54 -0300)
commit5cf9e0c44fdf115dd23a4f8d161dbfc7da0ef2da
treea8762b59e316f0f342e4845b77f1f446188841a3tree | snapshot
parent910264a89a2f97f1b4aa8b17bd9576422411f720commit | diff
RDMA/mlx5: Do not allow rereg of a ODP MR

This code is completely broken, the umem of a ODP MR simply cannot be
discarded without a lot more locking, nor can an ODP mkey be blithely
destroyed via destroy_mkey().

Fixes: 55856bebd531 ("IB/mlx5: Page faults handling infrastructure")
Link: https://lore.kernel.org/r/20191001153821.23621-2-jgg@ziepe.ca
Reviewed-by: Artemy Kovalyov <artemyko@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
drivers/infiniband/hw/mlx5/mr.c diff | blob | history
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