---

yaml
---
r: 140984
b: refs/heads/master
c: 3bf832c
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ec625cb29e66824f7ce41082617aeb93fa4e42e2
+refs/heads/master: 3bf832ce1fe6988148d392599f34ca0c6a34427d

trunk/kernel/trace/ring_buffer.c

@@ -577,8 +577,17 @@ struct ring_buffer *ring_buffer_alloc(unsigned long size, unsigned flags)
 	if (buffer->pages == 1)
 		buffer->pages++;
 
+	/*
+	 * In case of non-hotplug cpu, if the ring-buffer is allocated
+	 * in early initcall, it will not be notified of secondary cpus.
+	 * In that off case, we need to allocate for all possible cpus.
+	 */
+#ifdef CONFIG_HOTPLUG_CPU
 	get_online_cpus();
 	cpumask_copy(buffer->cpumask, cpu_online_mask);
+#else
+	cpumask_copy(buffer->cpumask, cpu_possible_mask);
+#endif
 	buffer->cpus = nr_cpu_ids;
 
 	bsize = sizeof(void *) * nr_cpu_ids;