[S390] smp: always reboot on cpu 0
Always reboot on logical cpu 0. This makes sure that the IPL cpu is
always the same and usually avoids strange numbering schemes between
physical and logical cpus.
Signed-off-by: Heiko Carstens <heiko.carstens@de.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 4d73296..0a7c39d 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -553,7 +553,7 @@
return rc;
}
-static void ipl_run(struct shutdown_trigger *trigger)
+static void __ipl_run(void *unused)
{
diag308(DIAG308_IPL, NULL);
if (MACHINE_IS_VM)
@@ -562,6 +562,11 @@
reipl_ccw_dev(&ipl_info.data.ccw.dev_id);
}
+static void ipl_run(struct shutdown_trigger *trigger)
+{
+ smp_switch_to_ipl_cpu(__ipl_run, NULL);
+}
+
static int __init ipl_init(void)
{
int rc;
@@ -1039,7 +1044,7 @@
sprintf(dst + pos, " PARM %s", vmparm);
}
-static void reipl_run(struct shutdown_trigger *trigger)
+static void __reipl_run(void *unused)
{
struct ccw_dev_id devid;
static char buf[128];
@@ -1087,6 +1092,11 @@
disabled_wait((unsigned long) __builtin_return_address(0));
}
+static void reipl_run(struct shutdown_trigger *trigger)
+{
+ smp_switch_to_ipl_cpu(__reipl_run, NULL);
+}
+
static void reipl_block_ccw_init(struct ipl_parameter_block *ipb)
{
ipb->hdr.len = IPL_PARM_BLK_CCW_LEN;
@@ -1369,20 +1379,18 @@
static struct kset *dump_kset;
-static void dump_run(struct shutdown_trigger *trigger)
+static void __dump_run(void *unused)
{
struct ccw_dev_id devid;
static char buf[100];
switch (dump_method) {
case DUMP_METHOD_CCW_CIO:
- smp_send_stop();
devid.devno = dump_block_ccw->ipl_info.ccw.devno;
devid.ssid = 0;
reipl_ccw_dev(&devid);
break;
case DUMP_METHOD_CCW_VM:
- smp_send_stop();
sprintf(buf, "STORE STATUS");
__cpcmd(buf, NULL, 0, NULL);
sprintf(buf, "IPL %X", dump_block_ccw->ipl_info.ccw.devno);
@@ -1396,10 +1404,17 @@
diag308(DIAG308_SET, dump_block_fcp);
diag308(DIAG308_DUMP, NULL);
break;
- case DUMP_METHOD_NONE:
- return;
+ default:
+ break;
}
- printk(KERN_EMERG "Dump failed!\n");
+}
+
+static void dump_run(struct shutdown_trigger *trigger)
+{
+ if (dump_method == DUMP_METHOD_NONE)
+ return;
+ smp_send_stop();
+ smp_switch_to_ipl_cpu(__dump_run, NULL);
}
static int __init dump_ccw_init(void)