#include "virt.h"
#include "watchdog.h"
#include "killall.h"
+#include "cgroup-util.h"
+#include "def.h"
#define FINALIZE_ATTEMPTS 50
}
int main(int argc, char *argv[]) {
- _cleanup_free_ char *line = NULL;
- int cmd, r;
- unsigned retries;
bool need_umount = true, need_swapoff = true, need_loop_detach = true, need_dm_detach = true;
bool in_container, use_watchdog = false;
+ _cleanup_free_ char *line = NULL, *cgroup = NULL, *param = NULL;
char *arguments[3];
+ unsigned retries;
+ int cmd, r;
/* suppress shutdown status output if 'quiet' is used */
- r = read_one_line_file("/proc/cmdline", &line);
- if (r >= 0) {
+ r = proc_cmdline(&line);
+ if (r > 0) {
char *w, *state;
size_t l;
in_container = detect_container(NULL) > 0;
- if (streq(argv[1], "reboot"))
+ if (streq(argv[1], "reboot")) {
cmd = RB_AUTOBOOT;
- else if (streq(argv[1], "poweroff"))
+ /* if this fails, that's OK */
+ read_one_line_file(REBOOT_PARAM_FILE, ¶m);
+ } else if (streq(argv[1], "poweroff"))
cmd = RB_POWER_OFF;
else if (streq(argv[1], "halt"))
cmd = RB_HALT_SYSTEM;
goto error;
}
+ cg_get_root_path(&cgroup);
+
use_watchdog = !!getenv("WATCHDOG_USEC");
/* lock us into memory */
if (use_watchdog)
watchdog_ping();
+ /* Let's trim the cgroup tree on each iteration so
+ that we leave an empty cgroup tree around, so that
+ container managers get a nice notify event when we
+ are down */
+ if (cgroup)
+ cg_trim(SYSTEMD_CGROUP_CONTROLLER, cgroup, false);
+
if (need_umount) {
log_info("Unmounting file systems.");
r = umount_all(&changed);
log_warning("kexec failed. Falling back to normal reboot.");
} else {
/* Child */
- const char *args[3] = { "/sbin/kexec", "-e", NULL };
+ const char *args[3] = { KEXEC, "-e", NULL };
execv(args[0], (char * const *) args);
return EXIT_FAILURE;
}
cmd = RB_AUTOBOOT;
}
- reboot(cmd);
+ if (param)
+ syscall(SYS_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2,
+ LINUX_REBOOT_CMD_RESTART2, param);
+ else
+ reboot(cmd);
if (errno == EPERM && in_container) {
/* If we are in a container, and we lacked