buffer_tail_page 2097 kernel/trace/ring_buffer.c struct buffer_page *buffer_tail_page; buffer_tail_page 2099 kernel/trace/ring_buffer.c buffer_tail_page = READ_ONCE(cpu_buffer->tail_page); buffer_tail_page 2104 kernel/trace/ring_buffer.c if (buffer_tail_page != tail_page && buffer_tail_page 2105 kernel/trace/ring_buffer.c buffer_tail_page != next_page)