From dd48d708ff3e917f6d6b6c2b696c3f18c019feed Mon Sep 17 00:00:00 2001 From: Richard Cochran Date: Thu, 26 Apr 2012 14:11:32 +0200 Subject: ntp: Correct TAI offset during leap second When repeating a UTC time value during a leap second (when the UTC time should be 23:59:60), the TAI timescale should not stop. The kernel NTP code increments the TAI offset one second too late. This patch fixes the issue by incrementing the offset during the leap second itself. Signed-off-by: Richard Cochran Signed-off-by: John Stultz diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c index f03fd83..e8c8671 100644 --- a/kernel/time/ntp.c +++ b/kernel/time/ntp.c @@ -412,6 +412,7 @@ int second_overflow(unsigned long secs) if (secs % 86400 == 0) { leap = -1; time_state = TIME_OOP; + time_tai++; printk(KERN_NOTICE "Clock: inserting leap second 23:59:60 UTC\n"); } @@ -426,7 +427,6 @@ int second_overflow(unsigned long secs) } break; case TIME_OOP: - time_tai++; time_state = TIME_WAIT; break; -- cgit v0.10.2 From cd5398bed9296d1ddb21630ac17e90cd19a5c62e Mon Sep 17 00:00:00 2001 From: Richard Cochran Date: Fri, 27 Apr 2012 10:12:41 +0200 Subject: ntp: Fix a stale comment and a few stray newlines. Signed-off-by: Richard Cochran Signed-off-by: John Stultz diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c index e8c8671..70b33ab 100644 --- a/kernel/time/ntp.c +++ b/kernel/time/ntp.c @@ -473,8 +473,6 @@ int second_overflow(unsigned long secs) << NTP_SCALE_SHIFT; time_adjust = 0; - - out: spin_unlock_irqrestore(&ntp_lock, flags); @@ -559,10 +557,10 @@ static inline void process_adj_status(struct timex *txc, struct timespec *ts) /* only set allowed bits */ time_status &= STA_RONLY; time_status |= txc->status & ~STA_RONLY; - } + /* - * Called with the xtime lock held, so we can access and modify + * Called with ntp_lock held, so we can access and modify * all the global NTP state: */ static inline void process_adjtimex_modes(struct timex *txc, struct timespec *ts) -- cgit v0.10.2 From 190d3b6b4ab0e1ce991e8bc94ad95f00b0dc476b Mon Sep 17 00:00:00 2001 From: Richard Cochran Date: Fri, 18 May 2012 16:09:53 +0200 Subject: time: remove obsolete declaration The function, timekeeping_leap_insert, was removed in commit 6b43ae8a619d17c4935c3320d2ef9e92bdeed05d Signed-off-by: Richard Cochran Signed-off-by: John Stultz diff --git a/include/linux/time.h b/include/linux/time.h index 33a92ea..179f4d6 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -167,7 +167,6 @@ extern void get_monotonic_boottime(struct timespec *ts); extern struct timespec timespec_trunc(struct timespec t, unsigned gran); extern int timekeeping_valid_for_hres(void); extern u64 timekeeping_max_deferment(void); -extern void timekeeping_leap_insert(int leapsecond); extern int timekeeping_inject_offset(struct timespec *ts); struct tms; -- cgit v0.10.2 From d239f49d77ad9ffa442e700db3cab06d8b414cd1 Mon Sep 17 00:00:00 2001 From: Richard Cochran Date: Fri, 27 Apr 2012 10:12:42 +0200 Subject: timekeeping: Fix a few minor newline issues. Fix a few minor newline issues. Signed-off-by: Richard Cochran Signed-off-by: John Stultz diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index d66b213..6e46cac 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c @@ -240,7 +240,6 @@ void getnstimeofday(struct timespec *ts) timespec_add_ns(ts, nsecs); } - EXPORT_SYMBOL(getnstimeofday); ktime_t ktime_get(void) @@ -357,8 +356,8 @@ void do_gettimeofday(struct timeval *tv) tv->tv_sec = now.tv_sec; tv->tv_usec = now.tv_nsec/1000; } - EXPORT_SYMBOL(do_gettimeofday); + /** * do_settimeofday - Sets the time of day * @tv: pointer to the timespec variable containing the new time @@ -392,7 +391,6 @@ int do_settimeofday(const struct timespec *tv) return 0; } - EXPORT_SYMBOL(do_settimeofday); -- cgit v0.10.2