perf: Add calls to suspend trace point

[firefly-linux-kernel-4.4.55.git] / kernel / printk.c

diff --git a/kernel/printk.c b/kernel/printk.c
index cf7588e93f6fa1dfc7d63cda0482b59a49eb0971..a23315dc4498844c113cecc9792eabd063e1d87b 100644 (file)
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -1082,6 +1082,8 @@ void printk_tick(void)
 
 int printk_needs_cpu(int cpu)
 {
+       if (unlikely(cpu_is_offline(cpu)))
+               printk_tick();
        return per_cpu(printk_pending, cpu);
 }