X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=blobdiff_plain;f=kernel%2Frcu%2Ftree_stall.h;h=c0b8c458d8a6ad267151f6cbffc791c217aeefdf;hb=7e67a859997aad47727aff9c5a32e160da079ce3;hp=065183391f75979e6bca59184f48e1126670eaad;hpb=21c730d7347126886c40453feb973161f4ae3fb3;p=linux.git

diff --git a/kernel/rcu/tree_stall.h b/kernel/rcu/tree_stall.h
index 065183391f75..c0b8c458d8a6 100644
--- a/kernel/rcu/tree_stall.h
+++ b/kernel/rcu/tree_stall.h
@@ -163,7 +163,7 @@ static void rcu_iw_handler(struct irq_work *iwp)
 //
 // Printing RCU CPU stall warnings
 
-#ifdef CONFIG_PREEMPT
+#ifdef CONFIG_PREEMPTION
 
 /*
  * Dump detailed information for all tasks blocking the current RCU
@@ -215,7 +215,7 @@ static int rcu_print_task_stall(struct rcu_node *rnp)
 	return ndetected;
 }
 
-#else /* #ifdef CONFIG_PREEMPT */
+#else /* #ifdef CONFIG_PREEMPTION */
 
 /*
  * Because preemptible RCU does not exist, we never have to check for
@@ -233,7 +233,7 @@ static int rcu_print_task_stall(struct rcu_node *rnp)
 {
 	return 0;
 }
-#endif /* #else #ifdef CONFIG_PREEMPT */
+#endif /* #else #ifdef CONFIG_PREEMPTION */
 
 /*
  * Dump stacks of all tasks running on stalled CPUs.  First try using
@@ -527,6 +527,8 @@ static void check_cpu_stall(struct rcu_data *rdp)
 
 		/* We haven't checked in, so go dump stack. */
 		print_cpu_stall();
+		if (rcu_cpu_stall_ftrace_dump)
+			rcu_ftrace_dump(DUMP_ALL);
 
 	} else if (rcu_gp_in_progress() &&
 		   ULONG_CMP_GE(j, js + RCU_STALL_RAT_DELAY) &&
@@ -534,6 +536,8 @@ static void check_cpu_stall(struct rcu_data *rdp)
 
 		/* They had a few time units to dump stack, so complain. */
 		print_other_cpu_stall(gs2);
+		if (rcu_cpu_stall_ftrace_dump)
+			rcu_ftrace_dump(DUMP_ALL);
 	}
 }
 
@@ -585,6 +589,11 @@ void show_rcu_gp_kthreads(void)
 				cpu, (long)rdp->gp_seq_needed);
 		}
 	}
+	for_each_possible_cpu(cpu) {
+		rdp = per_cpu_ptr(&rcu_data, cpu);
+		if (rcu_segcblist_is_offloaded(&rdp->cblist))
+			show_rcu_nocb_state(rdp);
+	}
 	/* sched_show_task(rcu_state.gp_kthread); */
 }
 EXPORT_SYMBOL_GPL(show_rcu_gp_kthreads);