RDMA/restrack: Un-inline set task implementation

Prepare rdma_restrack_set_task() call to accommodate more
code by moving its implementation from *.h to *.c.

Reviewed-by: Artemy Kovalyov <artemyko@mellanox.com>
Reviewed-by: Yossi Itigin <yosefe@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/core/restrack.c

@@ -155,6 +155,16 @@ static bool res_is_user(struct rdma_restrack_entry *res)
 	}
 }
 
+void rdma_restrack_set_task(struct rdma_restrack_entry *res,
+			    struct task_struct *task)
+{
+	if (res->task)
+		put_task_struct(res->task);
+	get_task_struct(task);
+	res->task = task;
+}
+EXPORT_SYMBOL(rdma_restrack_set_task);
+
 void rdma_restrack_add(struct rdma_restrack_entry *res)
 {
 	struct ib_device *dev = res_to_dev(res);

include/rdma/restrack.h

@@ -175,14 +175,8 @@ int rdma_restrack_put(struct rdma_restrack_entry *res);
  * @res:  resource entry
  * @task: task struct
  */
-static inline void rdma_restrack_set_task(struct rdma_restrack_entry *res,
-					  struct task_struct *task)
-{
-	if (res->task)
-		put_task_struct(res->task);
-	get_task_struct(task);
-	res->task = task;
-}
+void rdma_restrack_set_task(struct rdma_restrack_entry *res,
+			    struct task_struct *task);
 
 /*
  * Helper functions for rdma drivers when filling out