summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--arch/ia64/kernel/time.c2
-rw-r--r--arch/powerpc/kernel/time.c2
-rw-r--r--arch/s390/kernel/vtime.c2
-rw-r--r--include/linux/kernel_stat.h2
-rw-r--r--kernel/sched/cputime.c42
5 files changed, 28 insertions, 22 deletions
diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c
index d040f12ea9f9..ed98b26047c2 100644
--- a/arch/ia64/kernel/time.c
+++ b/arch/ia64/kernel/time.c
@@ -67,7 +67,7 @@ void vtime_flush(struct task_struct *tsk)
cputime_t delta;
if (ti->utime)
- account_user_time(tsk, cycle_to_cputime(ti->utime));
+ account_user_time(tsk, cputime_to_nsecs(cycle_to_cputime(ti->utime)));
if (ti->gtime)
account_guest_time(tsk, cycle_to_cputime(ti->gtime));
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 3cca82e065c9..c3931d816190 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -393,7 +393,7 @@ void vtime_flush(struct task_struct *tsk)
struct cpu_accounting_data *acct = get_accounting(tsk);
if (acct->utime)
- account_user_time(tsk, acct->utime);
+ account_user_time(tsk, cputime_to_nsecs(acct->utime));
if (acct->utime_scaled)
tsk->utimescaled += cputime_to_nsecs(acct->utime_scaled);
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index f2fc27491604..ca206d122302 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -166,7 +166,7 @@ static int do_account_vtime(struct task_struct *tsk)
/* Push account value */
if (user) {
- account_user_time(tsk, user);
+ account_user_time(tsk, cputime_to_nsecs(user));
tsk->utimescaled += cputime_to_nsecs(scale_vtime(user));
}
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index c3e38ded2d73..b716001ac23e 100644
--- a/include/linux/kernel_stat.h
+++ b/include/linux/kernel_stat.h
@@ -78,7 +78,7 @@ static inline unsigned int kstat_cpu_irqs_sum(unsigned int cpu)
return kstat_cpu(cpu).irqs_sum;
}
-extern void account_user_time(struct task_struct *, cputime_t);
+extern void account_user_time(struct task_struct *, u64);
extern void account_guest_time(struct task_struct *, cputime_t);
extern void account_system_time(struct task_struct *, int, cputime_t);
extern void account_system_index_time(struct task_struct *, cputime_t,
diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c
index f7b9624c7df0..55d31c35833a 100644
--- a/kernel/sched/cputime.c
+++ b/kernel/sched/cputime.c
@@ -116,18 +116,18 @@ static inline void task_group_account_field(struct task_struct *p, int index,
* @p: the process that the cpu time gets accounted to
* @cputime: the cpu time spent in user space since the last update
*/
-void account_user_time(struct task_struct *p, cputime_t cputime)
+void account_user_time(struct task_struct *p, u64 cputime)
{
int index;
/* Add user time to process. */
- p->utime += cputime_to_nsecs(cputime);
- account_group_user_time(p, cputime_to_nsecs(cputime));
+ p->utime += cputime;
+ account_group_user_time(p, cputime);
index = (task_nice(p) > 0) ? CPUTIME_NICE : CPUTIME_USER;
/* Add user time to cpustat. */
- task_group_account_field(p, index, cputime_to_nsecs(cputime));
+ task_group_account_field(p, index, cputime);
/* Account for user time used */
acct_account_cputime(p);
@@ -363,8 +363,9 @@ void thread_group_cputime(struct task_struct *tsk, struct task_cputime *times)
static void irqtime_account_process_tick(struct task_struct *p, int user_tick,
struct rq *rq, int ticks)
{
- u64 cputime = (__force u64) cputime_one_jiffy * ticks;
+ u64 old_cputime = (__force u64) cputime_one_jiffy * ticks;
cputime_t other;
+ u64 cputime;
/*
* When returning from idle, many ticks can get accounted at
@@ -374,9 +375,11 @@ static void irqtime_account_process_tick(struct task_struct *p, int user_tick,
* other time can exceed ticks occasionally.
*/
other = account_other_time(ULONG_MAX);
- if (other >= cputime)
+ if (other >= old_cputime)
return;
- cputime -= other;
+
+ old_cputime -= other;
+ cputime = cputime_to_nsecs(old_cputime);
if (this_cpu_ksoftirqd() == p) {
/*
@@ -384,15 +387,16 @@ static void irqtime_account_process_tick(struct task_struct *p, int user_tick,
* So, we have to handle it separately here.
* Also, p->stime needs to be updated for ksoftirqd.
*/
- account_system_index_time(p, cputime, CPUTIME_SOFTIRQ);
+ account_system_index_time(p, old_cputime, CPUTIME_SOFTIRQ);
} else if (user_tick) {
account_user_time(p, cputime);
} else if (p == rq->idle) {
- account_idle_time(cputime);
+ account_idle_time(old_cputime);
} else if (p->flags & PF_VCPU) { /* System time or guest time */
- account_guest_time(p, cputime);
+
+ account_guest_time(p, old_cputime);
} else {
- account_system_index_time(p, cputime, CPUTIME_SYSTEM);
+ account_system_index_time(p, old_cputime, CPUTIME_SYSTEM);
}
}
@@ -473,7 +477,8 @@ void thread_group_cputime_adjusted(struct task_struct *p, u64 *ut, u64 *st)
*/
void account_process_tick(struct task_struct *p, int user_tick)
{
- cputime_t cputime, steal;
+ cputime_t old_cputime, steal;
+ u64 cputime;
struct rq *rq = this_rq();
if (vtime_accounting_cpu_enabled())
@@ -484,20 +489,21 @@ void account_process_tick(struct task_struct *p, int user_tick)
return;
}
- cputime = cputime_one_jiffy;
+ old_cputime = cputime_one_jiffy;
steal = steal_account_process_time(ULONG_MAX);
- if (steal >= cputime)
+ if (steal >= old_cputime)
return;
- cputime -= steal;
+ old_cputime -= steal;
+ cputime = cputime_to_nsecs(old_cputime);
if (user_tick)
account_user_time(p, cputime);
else if ((p != rq->idle) || (irq_count() != HARDIRQ_OFFSET))
- account_system_time(p, HARDIRQ_OFFSET, cputime);
+ account_system_time(p, HARDIRQ_OFFSET, old_cputime);
else
- account_idle_time(cputime);
+ account_idle_time(old_cputime);
}
/*
@@ -736,7 +742,7 @@ void vtime_account_user(struct task_struct *tsk)
tsk->vtime_snap_whence = VTIME_SYS;
if (vtime_delta(tsk)) {
delta_cpu = get_vtime_delta(tsk);
- account_user_time(tsk, delta_cpu);
+ account_user_time(tsk, cputime_to_nsecs(delta_cpu));
}
write_seqcount_end(&tsk->vtime_seqcount);
}