[PATCH tip/core/rcu 16/18] rcu: Add tasks to expedited stall-warning messages

From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: linux-kernel@vger.kernel.org
Cc: mingo@kernel.org, jiangshanlai@gmail.com, dipankar@in.ibm.com,
	akpm@linux-foundation.org, mathieu.desnoyers@efficios.com,
	josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org,
	rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com,
	dvhart@linux.intel.com, fweisbec@gmail.com, oleg@redhat.com,
	bobby.prani@gmail.com,
	"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Subject: [PATCH tip/core/rcu 16/18] rcu: Add tasks to expedited stall-warning messages
Date: Tue,  6 Oct 2015 09:29:35 -0700	[thread overview]
Message-ID: <1444148977-14108-16-git-send-email-paulmck@linux.vnet.ibm.com> (raw)
In-Reply-To: <1444148977-14108-1-git-send-email-paulmck@linux.vnet.ibm.com>

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>
---
 kernel/rcu/tree.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index b246aa0470dc..ed957c3b6c86 100644
--- 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);
-- 
2.5.2

