From: Nir Muchtar <[email protected]>

[Dave please do not apply even if this ends up in netdev patchwork!]

Save the PID associated with an RDMA CM ID for reporting via netlink.

NOT-Signed-off-by: Nir Muchtar <[email protected]>
NOT-Signed-off-by: Roland Dreier <[email protected]>
---
 drivers/infiniband/core/cma.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index d4701a8..1e25434 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -133,6 +133,7 @@ struct rdma_id_private {
        u32                     seq_num;
        u32                     qkey;
        u32                     qp_num;
+       pid_t                   owner;
        u8                      srq;
        u8                      tos;
 };
@@ -423,6 +424,7 @@ struct rdma_cm_id *rdma_create_id(rdma_cm_event_handler 
event_handler,
        if (!id_priv)
                return ERR_PTR(-ENOMEM);
 
+       id_priv->owner = task_pid_nr(current);
        id_priv->state = RDMA_CM_IDLE;
        id_priv->id.context = context;
        id_priv->id.event_handler = event_handler;
@@ -2678,6 +2680,9 @@ int rdma_accept(struct rdma_cm_id *id, struct 
rdma_conn_param *conn_param)
        int ret;
 
        id_priv = container_of(id, struct rdma_id_private, id);
+
+       id_priv->owner = task_pid_nr(current);
+
        if (!cma_comp(id_priv, RDMA_CM_CONNECT))
                return -EINVAL;
 
@@ -3320,6 +3325,7 @@ static int cma_get_id_stats(struct sk_buff *skb, struct 
netlink_callback *cb)
                        id_stats->port_space = id->ps;
                        id_stats->cm_state = id_priv->state;
                        id_stats->qp_num = id_priv->qp_num;
+                       id_stats->pid = id_priv->owner;
 
                        i_id++;
                }
-- 
1.7.4.1

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