diff options
Diffstat (limited to 'fs/proc/proc_misc.c')
| -rw-r--r-- | fs/proc/proc_misc.c | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c index 5fd49e47f83a..bee251cb87c8 100644 --- a/fs/proc/proc_misc.c +++ b/fs/proc/proc_misc.c @@ -105,6 +105,7 @@ static int uptime_read_proc(char *page, char **start, off_t off, cputime_t idletime = cputime_add(init_task.utime, init_task.stime); do_posix_clock_monotonic_gettime(&uptime); + monotonic_to_bootbased(&uptime); cputime_to_timespec(idletime, &idle); len = sprintf(page,"%lu.%02lu %lu.%02lu\n", (unsigned long) uptime.tv_sec, @@ -443,12 +444,17 @@ static int show_stat(struct seq_file *p, void *v) unsigned long jif; cputime64_t user, nice, system, idle, iowait, irq, softirq, steal; u64 sum = 0; + struct timespec boottime; + unsigned int *per_irq_sum; + + per_irq_sum = kzalloc(sizeof(unsigned int)*NR_IRQS, GFP_KERNEL); + if (!per_irq_sum) + return -ENOMEM; user = nice = system = idle = iowait = irq = softirq = steal = cputime64_zero; - jif = - wall_to_monotonic.tv_sec; - if (wall_to_monotonic.tv_nsec) - --jif; + getboottime(&boottime); + jif = boottime.tv_sec; for_each_possible_cpu(i) { int j; @@ -461,8 +467,11 @@ static int show_stat(struct seq_file *p, void *v) 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); - for (j = 0 ; j < NR_IRQS ; j++) - sum += kstat_cpu(i).irqs[j]; + for (j = 0; j < NR_IRQS; j++) { + unsigned int temp = kstat_cpu(i).irqs[j]; + sum += temp; + per_irq_sum[j] += temp; + } } seq_printf(p, "cpu %llu %llu %llu %llu %llu %llu %llu %llu\n", @@ -498,9 +507,10 @@ static int show_stat(struct seq_file *p, void *v) } seq_printf(p, "intr %llu", (unsigned long long)sum); -#if !defined(CONFIG_PPC64) && !defined(CONFIG_ALPHA) && !defined(CONFIG_IA64) +#ifndef CONFIG_SMP + /* Touches too many cache lines on SMP setups */ for (i = 0; i < NR_IRQS; i++) - seq_printf(p, " %u", kstat_irqs(i)); + seq_printf(p, " %u", per_irq_sum[i]); #endif seq_printf(p, @@ -515,6 +525,7 @@ static int show_stat(struct seq_file *p, void *v) nr_running(), nr_iowait()); + kfree(per_irq_sum); return 0; } |