time: Use do_settimeofday64() internally

do_settimeofday() is a wrapper around do_settimeofday64(), so that function
can be called directly. The wrapper can be removed once the last user is
gone.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: y2038@lists.linaro.org
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Deepa Dinamani <deepa.kernel@gmail.com>
Link: https://lkml.kernel.org/r/20171013183452.3635956-1-arnd@arndb.de

kernel/time/time.c

@@ -82,7 +82,7 @@ SYSCALL_DEFINE1(time, time_t __user *, tloc)
 
 SYSCALL_DEFINE1(stime, time_t __user *, tptr)
 {
-	struct timespec tv;
+	struct timespec64 tv;
 	int err;
 
 	if (get_user(tv.tv_sec, tptr))
@@ -90,11 +90,11 @@ SYSCALL_DEFINE1(stime, time_t __user *, tptr)
 
 	tv.tv_nsec = 0;
 
-	err = security_settime(&tv, NULL);
+	err = security_settime64(&tv, NULL);
 	if (err)
 		return err;
 
-	do_settimeofday(&tv);
+	do_settimeofday64(&tv);
 	return 0;
 }
 
@@ -122,7 +122,7 @@ COMPAT_SYSCALL_DEFINE1(time, compat_time_t __user *, tloc)
 
 COMPAT_SYSCALL_DEFINE1(stime, compat_time_t __user *, tptr)
 {
-	struct timespec tv;
+	struct timespec64 tv;
 	int err;
 
 	if (get_user(tv.tv_sec, tptr))
@@ -130,11 +130,11 @@ COMPAT_SYSCALL_DEFINE1(stime, compat_time_t __user *, tptr)
 
 	tv.tv_nsec = 0;
 
-	err = security_settime(&tv, NULL);
+	err = security_settime64(&tv, NULL);
 	if (err)
 		return err;
 
-	do_settimeofday(&tv);
+	do_settimeofday64(&tv);
 	return 0;
 }