diff options
Diffstat (limited to 'kernel/reboot.c')
| -rw-r--r-- | kernel/reboot.c | 34 |
1 files changed, 32 insertions, 2 deletions
diff --git a/kernel/reboot.c b/kernel/reboot.c index 4177645e74d6..44228a93742b 100644 --- a/kernel/reboot.c +++ b/kernel/reboot.c @@ -23,7 +23,7 @@ * this indicates whether you can reboot with ctrl-alt-del: the default is yes */ -int C_A_D = 1; +static int C_A_D = 1; struct pid *cad_pid; EXPORT_SYMBOL(cad_pid); @@ -417,7 +417,8 @@ void ctrl_alt_del(void) kill_cad_pid(SIGINT, 1); } -char poweroff_cmd[POWEROFF_CMD_PATH_LEN] = "/sbin/poweroff"; +#define POWEROFF_CMD_PATH_LEN 256 +static char poweroff_cmd[POWEROFF_CMD_PATH_LEN] = "/sbin/poweroff"; static const char reboot_cmd[] = "/sbin/reboot"; static int run_cmd(const char *cmd) @@ -879,6 +880,33 @@ static struct attribute *reboot_attrs[] = { NULL, }; +#ifdef CONFIG_SYSCTL +static struct ctl_table kern_reboot_table[] = { + { + .procname = "poweroff_cmd", + .data = &poweroff_cmd, + .maxlen = POWEROFF_CMD_PATH_LEN, + .mode = 0644, + .proc_handler = proc_dostring, + }, + { + .procname = "ctrl-alt-del", + .data = &C_A_D, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec, + }, + { } +}; + +static void __init kernel_reboot_sysctls_init(void) +{ + register_sysctl_init("kernel", kern_reboot_table); +} +#else +#define kernel_reboot_sysctls_init() do { } while (0) +#endif /* CONFIG_SYSCTL */ + static const struct attribute_group reboot_attr_group = { .attrs = reboot_attrs, }; @@ -898,6 +926,8 @@ static int __init reboot_ksysfs_init(void) return ret; } + kernel_reboot_sysctls_init(); + return 0; } late_initcall(reboot_ksysfs_init); |