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| author |   Andrey Konovalov <andreyknvl@google.com> | 2019-07-23 19:58:48 +0200 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2019-07-24 16:22:54 -0300 |
| commit | ecc53f8a3c097d13f4b6793855e0bd30a63a5c3a (patch) | |
| tree | bbd0be74f050876d4d9e4a30bc45b1a88981634d /drivers/infiniband/core/cma_configfs.c | |
| parent | IB/hfi1: Remove unused define (diff) | |
| download | linux-dev-ecc53f8a3c097d13f4b6793855e0bd30a63a5c3a.tar.xz linux-dev-ecc53f8a3c097d13f4b6793855e0bd30a63a5c3a.zip | |
RDMA/mlx4: Untag user pointers in mlx4_get_umem_mr
This patch is a part of a series that extends kernel ABI to allow to pass
tagged user pointers (with the top byte set to something else other than
0x00) as syscall arguments.
mlx4_get_umem_mr() uses provided user pointers for vma lookups, which can
only by done with untagged pointers.
Untag user pointers in this function.
Link: https://lore.kernel.org/r/7969018013a67ddbbf784ac7afeea5a57b1e2bcb.1563904656.git.andreyknvl@google.com
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/core/cma_configfs.c')
0 files changed, 0 insertions, 0 deletions