timekeeping: Simplify timekeeping_clocktai()

timekeeping_clocktai() is not used in fast pathes, so the extra
timespec conversion is not problematic.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: John Stultz <john.stultz@linaro.org>

2 files changed, 5 insertions, 31 deletions

diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h
index 7b8f20007871..f0f12a84a31b 100644
--- a/include/linux/timekeeping.h
+++ b/include/linux/timekeeping.h
@@ -166,6 +166,11 @@ static inline void get_monotonic_boottime(struct timespec *ts)
         *ts = ktime_to_timespec(ktime_get_boottime());
 }
 
+static inline void timekeeping_clocktai(struct timespec *ts)
+{
+        *ts = ktime_to_timespec(ktime_get_clocktai());
+}
+
 /*
  * RTC specific
  */
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 50d5de05b837..118e91e3071c 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -497,37 +497,6 @@ void ktime_get_ts64(struct timespec64 *ts)
 }
 EXPORT_SYMBOL_GPL(ktime_get_ts64);
 
-
-/**
- * timekeeping_clocktai - Returns the TAI time of day in a timespec
- * @ts:         pointer to the timespec to be set
- *
- * Returns the time of day in a timespec.
- */
-void timekeeping_clocktai(struct timespec *ts)
-{
-        struct timekeeper *tk = &tk_core.timekeeper;
-        struct timespec64 ts64;
-        unsigned long seq;
-        u64 nsecs;
-
-        WARN_ON(timekeeping_suspended);
-
-        do {
-                seq = read_seqcount_begin(&tk_core.seq);
-
-                ts64.tv_sec = tk->xtime_sec + tk->tai_offset;
-                nsecs = timekeeping_get_ns(tk);
-
-        } while (read_seqcount_retry(&tk_core.seq, seq));
-
-        ts64.tv_nsec = 0;
-        timespec64_add_ns(&ts64, nsecs);
-        *ts = timespec64_to_timespec(ts64);
-
-}
-EXPORT_SYMBOL(timekeeping_clocktai);
-
 #ifdef CONFIG_NTP_PPS
 
 /**