[PATCH] NTP: ntp-helper functions

This patch cleans up a commonly repeated set of changes to the NTP state
variables by adding two helper inline functions:

ntp_clear(): Clears the ntp state variables

ntp_synced(): Returns 1 if the system is synced with a time server.

This was compile tested for alpha, arm, i386, x86-64, ppc64, s390, sparc,
sparc64.

Signed-off-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 2 insertions, 5 deletions

diff --git a/arch/ppc64/kernel/time.c b/arch/ppc64/kernel/time.c
index 91ef95ccda4f..9939c206afa4 100644
--- a/arch/ppc64/kernel/time.c
+++ b/arch/ppc64/kernel/time.c
@@ -128,7 +128,7 @@ static __inline__ void timer_check_rtc(void)
          * We should have an rtc call that only sets the minutes and
          * seconds like on Intel to avoid problems with non UTC clocks.
          */
-        if ( (time_status & STA_UNSYNC) == 0 &&
+        if (ntp_synced() &&
              xtime.tv_sec - last_rtc_update >= 659 &&
              abs((xtime.tv_nsec/1000) - (1000000-1000000/HZ)) < 500000/HZ &&
              jiffies - wall_jiffies == 1) {
@@ -435,10 +435,7 @@ int do_settimeofday(struct timespec *tv)
          */
         last_rtc_update = new_sec - 658;
 
-        time_adjust = 0;                /* stop active adjtime() */
-        time_status |= STA_UNSYNC;
-        time_maxerror = NTP_PHASE_LIMIT;
-        time_esterror = NTP_PHASE_LIMIT;
+        ntp_clear();
 
         delta_xsec = mulhdu( (tb_last_stamp-do_gtod.varp->tb_orig_stamp),
                              do_gtod.varp->tb_to_xs );