diff options
Diffstat (limited to 'fs/proc/uptime.c')
| -rw-r--r-- | fs/proc/uptime.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/fs/proc/uptime.c b/fs/proc/uptime.c index 0c10a0b3f14..33de567c25a 100644 --- a/fs/proc/uptime.c +++ b/fs/proc/uptime.c @@ -4,17 +4,26 @@ #include <linux/sched.h> #include <linux/seq_file.h> #include <linux/time.h> -#include <asm/cputime.h> +#include <linux/kernel_stat.h> +#include <linux/cputime.h> static int uptime_proc_show(struct seq_file *m, void *v) { struct timespec uptime; struct timespec idle; - cputime_t idletime = cputime_add(init_task.utime, init_task.stime); + u64 idletime; + u64 nsec; + u32 rem; + int i; - do_posix_clock_monotonic_gettime(&uptime); - monotonic_to_bootbased(&uptime); - cputime_to_timespec(idletime, &idle); + idletime = 0; + for_each_possible_cpu(i) + idletime += (__force u64) kcpustat_cpu(i).cpustat[CPUTIME_IDLE]; + + get_monotonic_boottime(&uptime); + nsec = cputime64_to_jiffies64(idletime) * TICK_NSEC; + idle.tv_sec = div_u64_rem(nsec, NSEC_PER_SEC, &rem); + idle.tv_nsec = rem; seq_printf(m, "%lu.%02lu %lu.%02lu\n", (unsigned long) uptime.tv_sec, (uptime.tv_nsec / (NSEC_PER_SEC / 100)), @@ -40,4 +49,4 @@ static int __init proc_uptime_init(void) proc_create("uptime", 0, NULL, &uptime_proc_fops); return 0; } -module_init(proc_uptime_init); +fs_initcall(proc_uptime_init); |