static void sysrq_handle_kill(int key)
{
send_sig_all(SIGKILL);
console_loglevel = 8;
}
static void sysrq_handle_term(int key)
{
send_sig_all(SIGTERM);
console_loglevel = 8;
}
static void sysrq_handle_term(int key, struct pt_regs *pt_regs,
struct tty_struct *tty)
{
send_sig_all(SIGTERM);
console_loglevel = 8;
}
static void sysrq_handle_kill(int key, struct pt_regs *pt_regs,
struct tty_struct *tty)
{
send_sig_all(SIGKILL);
console_loglevel = 8;
}
void handle_sysrq(int key, struct pt_regs *pt_regs,
struct kbd_struct *kbd, struct tty_struct *tty)
{
int orig_log_level = console_loglevel;
if (!key)
return;
console_loglevel = 7;
printk(KERN_INFO "SysRq: ");
switch (key) {
case 'r': /* R -- Reset raw mode */
if (kbd) {
kbd->kbdmode = VC_XLATE;
printk("Keyboard mode set to XLATE\n");
}
break;
#ifdef CONFIG_VT
case 'k': /* K -- SAK */
printk("SAK\n");
if (tty)
do_SAK(tty);
reset_vc(fg_console);
break;
#endif
case 'b': /* B -- boot immediately */
printk("Resetting\n");
machine_restart(NULL);
break;
case 'o': /* O -- power off */
if (sysrq_power_off) {
printk("Power off\n");
sysrq_power_off();
}
break;
case 's': /* S -- emergency sync */
printk("Emergency Sync\n");
emergency_sync_scheduled = EMERG_SYNC;
wakeup_bdflush(0);
break;
case 'u': /* U -- emergency remount R/O */
printk("Emergency Remount R/O\n");
emergency_sync_scheduled = EMERG_REMOUNT;
wakeup_bdflush(0);
break;
case 'p': /* P -- show PC */
printk("Show Regs\n");
if (pt_regs)
show_regs(pt_regs);
break;
case 't': /* T -- show task info */
printk("Show State\n");
show_state();
break;
case 'm': /* M -- show memory info */
printk("Show Memory\n");
show_mem();
break;
case '0' ... '9': /* 0-9 -- set console logging level */
orig_log_level = key - '0';
printk("Log level set to %d\n", orig_log_level);
break;
case 'e': /* E -- terminate all user processes */
printk("Terminate All Tasks\n");
send_sig_all(SIGTERM, 0);
orig_log_level = 8; /* We probably have killed syslogd */
break;
case 'i': /* I -- kill all user processes */
printk("Kill All Tasks\n");
send_sig_all(SIGKILL, 0);
orig_log_level = 8;
break;
case 'l': /* L -- kill all processes including init */
printk("Kill ALL Tasks (even init)\n");
send_sig_all(SIGKILL, 1);
orig_log_level = 8;
break;
default: /* Unknown: help */
if (kbd)
printk("unRaw ");
#ifdef CONFIG_VT
if (tty)
printk("saK ");
#endif
printk("Boot ");
if (sysrq_power_off)
printk("Off ");
printk("Sync Unmount showPc showTasks showMem loglevel0-8 tErm kIll killalL\n");
/* Don't use 'A' as it's handled specially on the Sparc */
}
console_loglevel = orig_log_level;
}