Merge branch 'perf/urgent' into perf/core

Merge reason: We want to apply a dependent patch.

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

1 files changed, 3 insertions, 1 deletions

diff --git a/kernel/printk.c b/kernel/printk.c
index 9a2264fc42ca..a23315dc4498 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -1082,13 +1082,15 @@ void printk_tick(void)
 
 int printk_needs_cpu(int cpu)
 {
+        if (unlikely(cpu_is_offline(cpu)))
+                printk_tick();
         return per_cpu(printk_pending, cpu);
 }
 
 void wake_up_klogd(void)
 {
         if (waitqueue_active(&log_wait))
-                __raw_get_cpu_var(printk_pending) = 1;
+                this_cpu_write(printk_pending, 1);
 }
 
 /**