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[PATCH] NTP: ntp-helper functions

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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>
This commit is contained in:
john stultz 2005-09-06 15:17:46 -07:00 • committed by Linus Torvalds
parent 6c231b7bab
commit b149ee2233
27 changed files with 65 additions and 111 deletions
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5
arch/sparc/kernel/pcic.c
View file

@ -840,10 +840,7 @@ static int pci_do_settimeofday(struct timespec *tv)
xtime.tv_sec = tv->tv_sec;
xtime.tv_nsec = tv->tv_nsec;
time_adjust = 0; /* stop active adjtime() */
time_status |= STA_UNSYNC;
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
ntp_clear();
return 0;
}

7
arch/sparc/kernel/time.c
View file

@ -139,7 +139,7 @@ irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs * regs)
/* Determine when to update the Mostek clock. */
if ((time_status & STA_UNSYNC) == 0 &&
if (ntp_synced() &&
xtime.tv_sec > last_rtc_update + 660 &&
(xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 &&
(xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) {
@ -554,10 +554,7 @@ static int sbus_do_settimeofday(struct timespec *tv)
set_normalized_timespec(&xtime, sec, nsec);
set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec);
time_adjust = 0; /* stop active adjtime() */
time_status |= STA_UNSYNC;
time_maxerror = NTP_PHASE_LIMIT;
time_esterror = NTP_PHASE_LIMIT;
ntp_clear();
return 0;
}