[S390] kexec: Disable ftrace during kexec

Disable ftrace during kexec. Same as on x86/powerpc.
ac4414e "powerpc/kdump: Disable ftrace during kexec".

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/s390/kernel/machine_kexec.c b/arch/s390/kernel/machine_kexec.c
index a922d51df6bf..b09b9c62573e 100644
--- a/arch/s390/kernel/machine_kexec.c
+++ b/arch/s390/kernel/machine_kexec.c
@@ -12,6 +12,7 @@
 #include <linux/kexec.h>
 #include <linux/delay.h>
 #include <linux/reboot.h>
+#include <linux/ftrace.h>
 #include <asm/cio.h>
 #include <asm/setup.h>
 #include <asm/pgtable.h>
@@ -71,6 +72,7 @@ static void __machine_kexec(void *data)
 
 void machine_kexec(struct kimage *image)
 {
+        tracer_disable();
         smp_send_stop();
         smp_switch_to_ipl_cpu(__machine_kexec, image);
 }