rcu: Add tasks to expedited stall-warning messages

This commit adds task-print ability to the expedited RCU CPU stall
warning messages in preparation for adding stall warnings to
synchornize_rcu_expedited().

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 3d033fee0dcb1630346b6f96e8fe61aee0e07d9d..b4f71ffa299ce630fc9208a0d54b2bfe27d6b179 100644 (file)
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -3734,7 +3734,7 @@ static void synchronize_sched_expedited_wait(struct rcu_state *rsp)
                                   sync_rcu_preempt_exp_done(rnp_root));
                        return;
                }
-               pr_err("INFO: %s detected expedited stalls on CPUs: {",
+               pr_err("INFO: %s detected expedited stalls on CPUs/tasks: {",
                       rsp->name);
                rcu_for_each_leaf_node(rsp, rnp) {
                        (void)rcu_print_task_exp_stall(rnp);