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[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>
This commit is contained in:
Heiko Carstens 2011-03-15 17:08:33 +01:00 committed by Martin Schwidefsky
parent d7b081ac0b
commit 6966727db1
1 changed files with 2 additions and 0 deletions
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2
arch/s390/kernel/machine_kexec.c
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@ -12,6 +12,7 @@
#include <linux/kexec.h> #include <linux/kexec.h>
#include <linux/delay.h> #include <linux/delay.h>
#include <linux/reboot.h> #include <linux/reboot.h>
#include <linux/ftrace.h>
#include <asm/cio.h> #include <asm/cio.h>
#include <asm/setup.h> #include <asm/setup.h>
#include <asm/pgtable.h> #include <asm/pgtable.h>
@ -71,6 +72,7 @@ static void __machine_kexec(void *data)
void machine_kexec(struct kimage *image) void machine_kexec(struct kimage *image)
{ {
tracer_disable();
smp_send_stop(); smp_send_stop();
smp_switch_to_ipl_cpu(__machine_kexec, image); smp_switch_to_ipl_cpu(__machine_kexec, image);
} }