RDMA/nldev: Factor out the PID namespace check
The PID namespace is going to be used in the .doit callback, so generalize
its implementation.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c
index 68b2d7a..e54a79d 100644
--- a/drivers/infiniband/core/nldev.c
+++ b/drivers/infiniband/core/nldev.c
@@ -943,6 +943,17 @@
},
};
+static bool is_visible_in_pid_ns(struct rdma_restrack_entry *res)
+{
+ /*
+ * 1. Kern resources should be visible in init name space only
+ * 2. Present only resources visible in the current namespace
+ */
+ if (rdma_is_kernel_res(res))
+ return task_active_pid_ns(current) == &init_pid_ns;
+ return task_active_pid_ns(current) == task_active_pid_ns(res->task);
+}
+
static int res_get_common_dumpit(struct sk_buff *skb,
struct netlink_callback *cb,
enum rdma_restrack_type res_type)
@@ -1007,16 +1018,7 @@
if (idx < start)
goto next;
- if ((rdma_is_kernel_res(res) &&
- task_active_pid_ns(current) != &init_pid_ns) ||
- (!rdma_is_kernel_res(res) && task_active_pid_ns(current) !=
- task_active_pid_ns(res->task)))
- /*
- * 1. Kern resources should be visible in init
- * namspace only
- * 2. Present only resources visible in the current
- * namespace
- */
+ if (!is_visible_in_pid_ns(res))
goto next;
if (!rdma_restrack_get(res))
