s390/cputime: reset all accounting fields on fork

copy_thread has to reset all cputime related field in the task struct,
not only user_timer and system_timer.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index 54281660582cb1d70f49ac432afe3a8af3d6e5ef..249deafaa6ee8fa9c87b8db3a2372515135991e0 100644 (file)
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -121,7 +121,10 @@ int copy_thread_tls(unsigned long clone_flags, unsigned long new_stackp,
        clear_tsk_thread_flag(p, TIF_SINGLE_STEP);
        /* Initialize per thread user and system timer values */
        p->thread.user_timer = 0;
+       p->thread.guest_timer = 0;
        p->thread.system_timer = 0;
+       p->thread.hardirq_timer = 0;
+       p->thread.softirq_timer = 0;
 
        frame->sf.back_chain = 0;
        /* new return point is ret_from_fork */