rcu: make rcu-stall debug printout more standard

Impact: change debug printout

Change "RCU detected CPU stall" to "INFO: RCU detected CPU stall"
message, to make it easier for tools to pick up the warning.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/kernel/rcuclassic.c b/kernel/rcuclassic.c
index 37f72e5..e503a00 100644 (file)
--- a/kernel/rcuclassic.c
+++ b/kernel/rcuclassic.c
@@ -191,7 +191,7 @@ static void print_other_cpu_stall(struct rcu_ctrlblk *rcp)
 
        /* OK, time to rat on our buddy... */
 
-       printk(KERN_ERR "RCU detected CPU stalls:");
+       printk(KERN_ERR "INFO: RCU detected CPU stalls:");
        for_each_possible_cpu(cpu) {
                if (cpu_isset(cpu, rcp->cpumask))
                        printk(" %d", cpu);
@@ -204,7 +204,7 @@ static void print_cpu_stall(struct rcu_ctrlblk *rcp)
 {
        unsigned long flags;
 
-       printk(KERN_ERR "RCU detected CPU %d stall (t=%lu/%lu jiffies)\n",
+       printk(KERN_ERR "INFO: RCU detected CPU %d stall (t=%lu/%lu jiffies)\n",
                        smp_processor_id(), jiffies,
                        jiffies - rcp->gp_start);
        dump_stack();