diff options
| author |   Jason Gunthorpe <jgg@mellanox.com> | 2019-08-19 14:17:01 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-08-21 14:08:42 -0300 |
| commit | fd7dbf035edcfb035977423e2a5102832c1427f4 (patch) | |
| tree | 6b3db77ec053e94fed95479569088d38e2e64bc8 /drivers/infiniband/hw/mlx5 | |
| parent | RDMA/odp: Iterate over the whole rbtree directly (diff) | |
| download | linux-dev-fd7dbf035edcfb035977423e2a5102832c1427f4.tar.xz linux-dev-fd7dbf035edcfb035977423e2a5102832c1427f4.zip | |
RDMA/odp: Make it clearer when a umem is an implicit ODP umem
Implicit ODP umems are special, they don't have any page lists, they don't
exist in the interval tree and they are never DMA mapped.
Instead of trying to guess this based on a zero length use an explicit
flag.
Further, do not allow non-implicit umems to be 0 size.
Link: https://lore.kernel.org/r/20190819111710.18440-4-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx5')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/mr.c | 2 | ||||
| -rw-r--r-- | drivers/infiniband/hw/mlx5/odp.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c index b74fad08412f..ba2ec495b6e3 100644 --- a/drivers/infiniband/hw/mlx5/mr.c +++ b/drivers/infiniband/hw/mlx5/mr.c @@ -1600,7 +1600,7 @@ static void dereg_mr(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr) /* Wait for all running page-fault handlers to finish. */ synchronize_srcu(&dev->mr_srcu); /* Destroy all page mappings */ - if (umem_odp->page_list) + if (!umem_odp->is_implicit_odp) mlx5_ib_invalidate_range(umem_odp, ib_umem_start(umem_odp), ib_umem_end(umem_odp)); diff --git a/drivers/infiniband/hw/mlx5/odp.c b/drivers/infiniband/hw/mlx5/odp.c index 82b716a28ec1..80c07d85b966 100644 --- a/drivers/infiniband/hw/mlx5/odp.c +++ b/drivers/infiniband/hw/mlx5/odp.c @@ -584,7 +584,7 @@ static int pagefault_mr(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr, struct ib_umem_odp *odp; size_t size; - if (!odp_mr->page_list) { + if (odp_mr->is_implicit_odp) { odp = implicit_mr_get_data(mr, io_virt, bcnt); if (IS_ERR(odp)) |