[GIT PULL] timer fixes

[Ingo Molnar]

Linus,

Please pull the latest timers-urgent-for-linus git tree from:

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 
timers-urgent-for-linus

   HEAD: ec145babe754f9ea1079034a108104b6001e001c time: Fix timeekeping_get_ns 
overflow on 32bit systems

One more timekeeping fix for v3.6.

 Thanks,

        Ingo

------------------>
John Stultz (1):
      time: Fix timeekeping_get_ns overflow on 32bit systems


 kernel/time/timekeeping.c | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 34e5eac..d3b91e7 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -303,10 +303,11 @@ void getnstimeofday(struct timespec *ts)
                seq = read_seqbegin(&tk->lock);
 
                ts->tv_sec = tk->xtime_sec;
-               ts->tv_nsec = timekeeping_get_ns(tk);
+               nsecs = timekeeping_get_ns(tk);
 
        } while (read_seqretry(&tk->lock, seq));
 
+       ts->tv_nsec = 0;
        timespec_add_ns(ts, nsecs);
 }
 EXPORT_SYMBOL(getnstimeofday);
@@ -345,6 +346,7 @@ void ktime_get_ts(struct timespec *ts)
 {
        struct timekeeper *tk = &timekeeper;
        struct timespec tomono;
+       s64 nsec;
        unsigned int seq;
 
        WARN_ON(timekeeping_suspended);
@@ -352,13 +354,14 @@ void ktime_get_ts(struct timespec *ts)
        do {
                seq = read_seqbegin(&tk->lock);
                ts->tv_sec = tk->xtime_sec;
-               ts->tv_nsec = timekeeping_get_ns(tk);
+               nsec = timekeeping_get_ns(tk);
                tomono = tk->wall_to_monotonic;
 
        } while (read_seqretry(&tk->lock, seq));
 
-       set_normalized_timespec(ts, ts->tv_sec + tomono.tv_sec,
-                               ts->tv_nsec + tomono.tv_nsec);
+       ts->tv_sec += tomono.tv_sec;
+       ts->tv_nsec = 0;
+       timespec_add_ns(ts, nsec + tomono.tv_nsec);
 }
 EXPORT_SYMBOL_GPL(ktime_get_ts);
 
@@ -1244,6 +1247,7 @@ void get_monotonic_boottime(struct timespec *ts)
 {
        struct timekeeper *tk = &timekeeper;
        struct timespec tomono, sleep;
+       s64 nsec;
        unsigned int seq;
 
        WARN_ON(timekeeping_suspended);
@@ -1251,14 +1255,15 @@ void get_monotonic_boottime(struct timespec *ts)
        do {
                seq = read_seqbegin(&tk->lock);
                ts->tv_sec = tk->xtime_sec;
-               ts->tv_nsec = timekeeping_get_ns(tk);
+               nsec = timekeeping_get_ns(tk);
                tomono = tk->wall_to_monotonic;
                sleep = tk->total_sleep_time;
 
        } while (read_seqretry(&tk->lock, seq));
 
-       set_normalized_timespec(ts, ts->tv_sec + tomono.tv_sec + sleep.tv_sec,
-                       ts->tv_nsec + tomono.tv_nsec + sleep.tv_nsec);
+       ts->tv_sec += tomono.tv_sec + sleep.tv_sec;
+       ts->tv_nsec = 0;
+       timespec_add_ns(ts, nsec + tomono.tv_nsec + sleep.tv_nsec);
 }
 EXPORT_SYMBOL_GPL(get_monotonic_boottime);
 

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