[S390] Change default action from reipl to stop for on_restart

The main purpose for PSW restart will be kdump. Therefore customers will
issue "system restart" for creating a dump. If kdump is not enabled,
currently "PSW restart" will reboot the system and then no dump can
be created any more. In order to still allow a manual stand-alone dump in
the case a user issues "PSW restart" on a system that has not enabled
kdump we now stop the system.

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index ee28e06..48c7102 100644 (file)
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -1618,7 +1618,8 @@ static struct shutdown_action vmcmd_action = {SHUTDOWN_ACTION_VMCMD_STR,
 
 static void stop_run(struct shutdown_trigger *trigger)
 {
-       if (strcmp(trigger->name, ON_PANIC_STR) == 0)
+       if (strcmp(trigger->name, ON_PANIC_STR) == 0 ||
+           strcmp(trigger->name, ON_RESTART_STR) == 0)
                disabled_wait((unsigned long) __builtin_return_address(0));
        while (sigp(smp_processor_id(), sigp_stop) == sigp_busy)
                cpu_relax();
@@ -1717,7 +1718,7 @@ static void do_panic(void)
 /* on restart */
 
 static struct shutdown_trigger on_restart_trigger = {ON_RESTART_STR,
-       &reipl_action};
+       &stop_action};
 
 static ssize_t on_restart_show(struct kobject *kobj,
                               struct kobj_attribute *attr, char *page)