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Commit cc54c1e6 authored by Heiko Carstens's avatar Heiko Carstens Committed by Martin Schwidefsky
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[S390] ftrace: dont trace machine check handler 



The ftrace code is currently not reentrant, so we better don't trace
our machine check handler. Machine checks are handled like NMIs on s390.

Signed-off-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 92e6ecf3

drivers/s390/s390mach.c

+1 −2
Original line number Diff line number Diff line
@@ -357,8 +357,7 @@ s390_revalidate_registers(struct mci *mci) 
/*

 * machine check handler.

 */

void

s390_do_machine_check(struct pt_regs *regs)

void notrace s390_do_machine_check(struct pt_regs *regs)

{

	static DEFINE_SPINLOCK(ipd_lock);

	static unsigned long long last_ipd;