diff --git a/arch/s390/appldata/appldata_os.c b/arch/s390/appldata/appldata_os.c
index e0a476b..99ddd3b 100644
--- a/arch/s390/appldata/appldata_os.c
+++ b/arch/s390/appldata/appldata_os.c
@@ -141,19 +141,19 @@
 	j = 0;
 	for_each_online_cpu(i) {
 		os_data->os_cpu[j].per_cpu_user =
-					kstat_cpu(i).cpustat.user;
+			cputime_to_jiffies(kstat_cpu(i).cpustat.user);
 		os_data->os_cpu[j].per_cpu_nice =
-					kstat_cpu(i).cpustat.nice;
+			cputime_to_jiffies(kstat_cpu(i).cpustat.nice);
 		os_data->os_cpu[j].per_cpu_system =
-					kstat_cpu(i).cpustat.system;
+			cputime_to_jiffies(kstat_cpu(i).cpustat.system);
 		os_data->os_cpu[j].per_cpu_idle =
-					kstat_cpu(i).cpustat.idle;
+			cputime_to_jiffies(kstat_cpu(i).cpustat.idle);
 		os_data->os_cpu[j].per_cpu_irq =
-					kstat_cpu(i).cpustat.irq;
+			cputime_to_jiffies(kstat_cpu(i).cpustat.irq);
 		os_data->os_cpu[j].per_cpu_softirq =
-					kstat_cpu(i).cpustat.softirq;
+			cputime_to_jiffies(kstat_cpu(i).cpustat.softirq);
 		os_data->os_cpu[j].per_cpu_iowait =
-					kstat_cpu(i).cpustat.iowait;
+			cputime_to_jiffies(kstat_cpu(i).cpustat.iowait);
 		j++;
 	}
 
diff --git a/kernel/acct.c b/kernel/acct.c
index 6312d6b..38d57fa 100644
--- a/kernel/acct.c
+++ b/kernel/acct.c
@@ -427,6 +427,7 @@
 	u64 elapsed;
 	u64 run_time;
 	struct timespec uptime;
+	unsigned long jiffies;
 
 	/*
 	 * First check to see if there is enough free_space to continue
@@ -467,12 +468,12 @@
 #endif
 	do_div(elapsed, AHZ);
 	ac.ac_btime = xtime.tv_sec - elapsed;
-	ac.ac_utime = encode_comp_t(jiffies_to_AHZ(
-					    current->signal->utime +
-					    current->group_leader->utime));
-	ac.ac_stime = encode_comp_t(jiffies_to_AHZ(
-					    current->signal->stime +
-					    current->group_leader->stime));
+	jiffies = cputime_to_jiffies(cputime_add(current->group_leader->utime,
+						 current->signal->utime));
+	ac.ac_utime = encode_comp_t(jiffies_to_AHZ(jiffies));
+	jiffies = cputime_to_jiffies(cputime_add(current->group_leader->stime,
+						 current->signal->stime));
+	ac.ac_stime = encode_comp_t(jiffies_to_AHZ(jiffies));
 	/* we really need to bite the bullet and change layout */
 	ac.ac_uid = current->uid;
 	ac.ac_gid = current->gid;
@@ -580,7 +581,8 @@
 void acct_update_integrals(struct task_struct *tsk)
 {
 	if (likely(tsk->mm)) {
-		long delta = tsk->stime - tsk->acct_stimexpd;
+		long delta =
+			cputime_to_jiffies(tsk->stime) - tsk->acct_stimexpd;
 
 		if (delta == 0)
 			return;