[S390] cputime: add sparse checking and cleanup
Make cputime_t and cputime64_t nocast to enable sparse checking to
detect incorrect use of cputime. Drop the cputime macros for simple
scalar operations. The conversion macros are still needed.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/fs/proc/array.c b/fs/proc/array.c
index 3a1dafd..8c344f0 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -394,8 +394,8 @@
sigemptyset(&sigign);
sigemptyset(&sigcatch);
- cutime = cstime = utime = stime = cputime_zero;
- cgtime = gtime = cputime_zero;
+ cutime = cstime = utime = stime = 0;
+ cgtime = gtime = 0;
if (lock_task_sighand(task, &flags)) {
struct signal_struct *sig = task->signal;
@@ -423,14 +423,14 @@
do {
min_flt += t->min_flt;
maj_flt += t->maj_flt;
- gtime = cputime_add(gtime, t->gtime);
+ gtime += t->gtime;
t = next_thread(t);
} while (t != task);
min_flt += sig->min_flt;
maj_flt += sig->maj_flt;
thread_group_times(task, &utime, &stime);
- gtime = cputime_add(gtime, sig->gtime);
+ gtime += sig->gtime;
}
sid = task_session_nr_ns(task, ns);
diff --git a/fs/proc/stat.c b/fs/proc/stat.c
index 2a30d67..714d5d1 100644
--- a/fs/proc/stat.c
+++ b/fs/proc/stat.c
@@ -30,7 +30,7 @@
if (idle_time == -1ULL) {
/* !NO_HZ so we can rely on cpustat.idle */
idle = kstat_cpu(cpu).cpustat.idle;
- idle = cputime64_add(idle, arch_idle_time(cpu));
+ idle += arch_idle_time(cpu);
} else
idle = nsecs_to_jiffies64(1000 * idle_time);
@@ -63,23 +63,22 @@
struct timespec boottime;
user = nice = system = idle = iowait =
- irq = softirq = steal = cputime64_zero;
- guest = guest_nice = cputime64_zero;
+ irq = softirq = steal = 0;
+ guest = guest_nice = 0;
getboottime(&boottime);
jif = boottime.tv_sec;
for_each_possible_cpu(i) {
- user = cputime64_add(user, kstat_cpu(i).cpustat.user);
- nice = cputime64_add(nice, kstat_cpu(i).cpustat.nice);
- system = cputime64_add(system, kstat_cpu(i).cpustat.system);
- idle = cputime64_add(idle, get_idle_time(i));
- iowait = cputime64_add(iowait, get_iowait_time(i));
- irq = cputime64_add(irq, kstat_cpu(i).cpustat.irq);
- softirq = cputime64_add(softirq, kstat_cpu(i).cpustat.softirq);
- steal = cputime64_add(steal, kstat_cpu(i).cpustat.steal);
- guest = cputime64_add(guest, kstat_cpu(i).cpustat.guest);
- guest_nice = cputime64_add(guest_nice,
- kstat_cpu(i).cpustat.guest_nice);
+ user += kstat_cpu(i).cpustat.user;
+ nice += kstat_cpu(i).cpustat.nice;
+ system += kstat_cpu(i).cpustat.system;
+ idle += get_idle_time(i);
+ iowait += get_iowait_time(i);
+ irq += kstat_cpu(i).cpustat.irq;
+ softirq += kstat_cpu(i).cpustat.softirq;
+ steal += kstat_cpu(i).cpustat.steal;
+ guest += kstat_cpu(i).cpustat.guest;
+ guest_nice += kstat_cpu(i).cpustat.guest_nice;
sum += kstat_cpu_irqs_sum(i);
sum += arch_irq_stat_cpu(i);
diff --git a/fs/proc/uptime.c b/fs/proc/uptime.c
index 766b1d4..ac52436 100644
--- a/fs/proc/uptime.c
+++ b/fs/proc/uptime.c
@@ -12,10 +12,10 @@
struct timespec uptime;
struct timespec idle;
int i;
- cputime_t idletime = cputime_zero;
+ cputime_t idletime = 0;
for_each_possible_cpu(i)
- idletime = cputime64_add(idletime, kstat_cpu(i).cpustat.idle);
+ idletime += kstat_cpu(i).cpustat.idle;
do_posix_clock_monotonic_gettime(&uptime);
monotonic_to_bootbased(&uptime);