fs/proc/uptime.c:uptime_proc_show(): use get_monotonic_boottime()

Change uptime_proc_show() to use get_monotonic_boottime() instead of
do_posix_clock_monotonic_gettime() + monotonic_to_bootbased().

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: John Stultz <johnstul@us.ibm.com>
Cc: Tomas Janousek <tjanouse@redhat.com>
Cc: Tomas Smetana <tsmetana@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 2 deletions

diff --git a/fs/proc/uptime.c b/fs/proc/uptime.c
index 9610ac772d7e..061894625903 100644
--- a/fs/proc/uptime.c
+++ b/fs/proc/uptime.c
@@ -20,8 +20,7 @@ static int uptime_proc_show(struct seq_file *m, void *v)
         for_each_possible_cpu(i)
                 idletime += (__force u64) kcpustat_cpu(i).cpustat[CPUTIME_IDLE];
 
-        do_posix_clock_monotonic_gettime(&uptime);
-        monotonic_to_bootbased(&uptime);
+        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;