rb_head_page_activate 1184 kernel/trace/ring_buffer.c 	rb_head_page_activate(cpu_buffer);
rb_head_page_activate 1334 kernel/trace/ring_buffer.c 	rb_head_page_activate(cpu_buffer);
rb_head_page_activate 4393 kernel/trace/ring_buffer.c 	rb_head_page_activate(cpu_buffer);