RB_BUFFER_OFF    3233 kernel/trace/ring_buffer.c 		new_rd = rd | RB_BUFFER_OFF;
RB_BUFFER_OFF    3256 kernel/trace/ring_buffer.c 		new_rd = rd & ~RB_BUFFER_OFF;
RB_BUFFER_OFF    3285 kernel/trace/ring_buffer.c 	return !(atomic_read(&buffer->record_disabled) & RB_BUFFER_OFF);