cpu_extra 1133 kernel/printk/printk.c unsigned int cpu_extra; cpu_extra 1143 kernel/printk/printk.c cpu_extra = (num_possible_cpus() - 1) * __LOG_CPU_MAX_BUF_LEN; cpu_extra 1146 kernel/printk/printk.c if (cpu_extra <= __LOG_BUF_LEN / 2) cpu_extra 1152 kernel/printk/printk.c cpu_extra); cpu_extra 1155 kernel/printk/printk.c log_buf_len_update(cpu_extra + __LOG_BUF_LEN);