diff options
| author |   Steve Wise <swise@opengridcomputing.com> | 2018-02-14 18:43:36 -0800 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2018-02-16 10:18:11 -0700 |
| commit | 2f08ee363fe097bc6dc01aac53e1798b16c00986 (patch) | |
| tree | 204e7fec71004dbca9041601d93f8b770bb3d576 /drivers/infiniband/core/core_priv.h | |
| parent | RDMA/verbs: Check existence of function prior to accessing it (diff) | |
| download | linux-dev-2f08ee363fe097bc6dc01aac53e1798b16c00986.tar.xz linux-dev-2f08ee363fe097bc6dc01aac53e1798b16c00986.zip | |
RDMA/restrack: don't use uaccess_kernel()
uaccess_kernel() isn't sufficient to determine if an rdma resource is
user-mode or not. For example, resources allocated in the add_one()
function of an ib_client get falsely labeled as user mode, when they
are kernel mode allocations. EG: mad qps.
The result is that these qps are skipped over during a nldev query
because of an erroneous namespace mismatch.
So now we determine if the resource is user-mode by looking at the object
struct's uobject or similar pointer to know if it was allocated for user
mode applications.
Fixes: 02d8883f520e ("RDMA/restrack: Add general infrastructure to track RDMA resources")
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/infiniband/core/core_priv.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/infiniband/core/core_priv.h b/drivers/infiniband/core/core_priv.h index c91f9a80b831..25bb178f6074 100644 --- a/drivers/infiniband/core/core_priv.h +++ b/drivers/infiniband/core/core_priv.h @@ -305,7 +305,8 @@ void nldev_exit(void); static inline struct ib_qp *_ib_create_qp(struct ib_device *dev, struct ib_pd *pd, struct ib_qp_init_attr *attr, - struct ib_udata *udata) + struct ib_udata *udata, + struct ib_uobject *uobj) { struct ib_qp *qp; @@ -318,6 +319,7 @@ static inline struct ib_qp *_ib_create_qp(struct ib_device *dev, qp->device = dev; qp->pd = pd; + qp->uobject = uobj; /* * We don't track XRC QPs for now, because they don't have PD * and more importantly they are created internaly by driver, |