static int show_schedstat(struct seq_file *seq, void *v)
{
int cpu;
+ int mask_len = NR_CPUS/32 * 9;
+ char *mask_str = kmalloc(mask_len, GFP_KERNEL);
+
+ if (mask_str == NULL)
+ return -ENOMEM;
seq_printf(seq, "version %d\n", SCHEDSTAT_VERSION);
seq_printf(seq, "timestamp %lu\n", jiffies);
preempt_disable();
for_each_domain(cpu, sd) {
enum cpu_idle_type itype;
- char mask_str[NR_CPUS];
- cpumask_scnprintf(mask_str, NR_CPUS, sd->span);
+ cpumask_scnprintf(mask_str, mask_len, sd->span);
seq_printf(seq, "domain%d %s", dcount++, mask_str);
for (itype = CPU_IDLE; itype < CPU_MAX_IDLE_TYPES;
itype++) {
sd->lb_nobusyq[itype],
sd->lb_nobusyg[itype]);
}
- seq_printf(seq, " %u %u %u %u %u %u %u %u %u %u %u %u\n",
+ seq_printf(seq,
+ " %u %u %u %u %u %u %u %u %u %u %u %u\n",
sd->alb_count, sd->alb_failed, sd->alb_pushed,
sd->sbe_count, sd->sbe_balanced, sd->sbe_pushed,
sd->sbf_count, sd->sbf_balanced, sd->sbf_pushed,
# define schedstat_set(var, val) do { } while (0)
#endif
-#ifdef CONFIG_SCHEDSTATS
+#if defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT)
/*
* Called when a process is dequeued from the active array and given
* the cpu. We should note that with the exception of interactive
*/
static void sched_info_arrive(struct task_struct *t)
{
- unsigned long long now = sched_clock(), delta = 0;
+ unsigned long long now = task_rq(t)->clock, delta = 0;
if (t->sched_info.last_queued)
delta = now - t->sched_info.last_queued;
{
if (unlikely(sched_info_on()))
if (!t->sched_info.last_queued)
- t->sched_info.last_queued = sched_clock();
+ t->sched_info.last_queued = task_rq(t)->clock;
}
/*
*/
static inline void sched_info_depart(struct task_struct *t)
{
- unsigned long long delta = sched_clock() - t->sched_info.last_arrival;
+ unsigned long long delta = task_rq(t)->clock -
+ t->sched_info.last_arrival;
t->sched_info.cpu_time += delta;
rq_sched_info_depart(task_rq(t), delta);
#else
#define sched_info_queued(t) do { } while (0)
#define sched_info_switch(t, next) do { } while (0)
-#endif /* CONFIG_SCHEDSTATS */
+#endif /* CONFIG_SCHEDSTATS || CONFIG_TASK_DELAY_ACCT */