diff options
Diffstat (limited to 'fs/proc/uptime.c')
| -rw-r--r-- | fs/proc/uptime.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/fs/proc/uptime.c b/fs/proc/uptime.c index 5a1b228964fb..b5343d209381 100644 --- a/fs/proc/uptime.c +++ b/fs/proc/uptime.c @@ -7,23 +7,28 @@ #include <linux/time.h> #include <linux/time_namespace.h> #include <linux/kernel_stat.h> +#include "internal.h" static int uptime_proc_show(struct seq_file *m, void *v) { struct timespec64 uptime; struct timespec64 idle; - u64 nsec; + u64 idle_nsec; u32 rem; int i; - nsec = 0; - for_each_possible_cpu(i) - nsec += (__force u64) kcpustat_cpu(i).cpustat[CPUTIME_IDLE]; + idle_nsec = 0; + for_each_possible_cpu(i) { + struct kernel_cpustat kcs; + + kcpustat_cpu_fetch(&kcs, i); + idle_nsec += get_idle_time(&kcs, i); + } ktime_get_boottime_ts64(&uptime); timens_add_boottime(&uptime); - idle.tv_sec = div_u64_rem(nsec, NSEC_PER_SEC, &rem); + idle.tv_sec = div_u64_rem(idle_nsec, NSEC_PER_SEC, &rem); idle.tv_nsec = rem; seq_printf(m, "%lu.%02lu %lu.%02lu\n", (unsigned long) uptime.tv_sec, @@ -35,7 +40,10 @@ static int uptime_proc_show(struct seq_file *m, void *v) static int __init proc_uptime_init(void) { - proc_create_single("uptime", 0, NULL, uptime_proc_show); + struct proc_dir_entry *pde; + + pde = proc_create_single("uptime", 0, NULL, uptime_proc_show); + pde_make_permanent(pde); return 0; } fs_initcall(proc_uptime_init); |