From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 16 Jul 2014 21:04:05 +0000 (+0000)
Subject: timekeeper: Move tk_xtime to core code
X-Git-Tag: firefly_0821_release~176^2~3477^2~57
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c905fae43f61c2b4508fc01722e8db61b6b8ac0b;p=firefly-linux-kernel-4.4.55.git

timekeeper: Move tk_xtime to core code

No users outside of the core.

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

diff --git a/include/linux/timekeeper_internal.h b/include/linux/timekeeper_internal.h
index 1b05491e10f9..16de6d7c240a 100644
--- a/include/linux/timekeeper_internal.h
+++ b/include/linux/timekeeper_internal.h
@@ -71,16 +71,6 @@ struct timekeeper {
 
 };
 
-static inline struct timespec64 tk_xtime(struct timekeeper *tk)
-{
-	struct timespec64 ts;
-
-	ts.tv_sec = tk->xtime_sec;
-	ts.tv_nsec = (long)(tk->xtime_nsec >> tk->shift);
-	return ts;
-}
-
-
 #ifdef CONFIG_GENERIC_TIME_VSYSCALL
 
 extern void update_vsyscall(struct timekeeper *tk);
@@ -92,14 +82,6 @@ extern void update_vsyscall_old(struct timespec *ts, struct timespec *wtm,
 				struct clocksource *c, u32 mult);
 extern void update_vsyscall_tz(void);
 
-static inline void update_vsyscall(struct timekeeper *tk)
-{
-	struct timespec xt;
-
-	xt = tk_xtime(tk);
-	update_vsyscall_old(&xt, &tk->wall_to_monotonic, tk->clock, tk->mult);
-}
-
 #else
 
 static inline void update_vsyscall(struct timekeeper *tk)
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 3210c9e690c5..983d67b388d7 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -51,6 +51,15 @@ static inline void tk_normalize_xtime(struct timekeeper *tk)
 	}
 }
 
+static inline struct timespec64 tk_xtime(struct timekeeper *tk)
+{
+	struct timespec64 ts;
+
+	ts.tv_sec = tk->xtime_sec;
+	ts.tv_nsec = (long)(tk->xtime_nsec >> tk->shift);
+	return ts;
+}
+
 static void tk_set_xtime(struct timekeeper *tk, const struct timespec64 *ts)
 {
 	tk->xtime_sec = ts->tv_sec;
@@ -199,6 +208,40 @@ static inline s64 timekeeping_get_ns_raw(struct timekeeper *tk)
 	return nsec + arch_gettimeoffset();
 }
 
+#ifdef CONFIG_GENERIC_TIME_VSYSCALL_OLD
+
+static inline void update_vsyscall(struct timekeeper *tk)
+{
+	struct timespec xt;
+
+	xt = tk_xtime(tk);
+	update_vsyscall_old(&xt, &tk->wall_to_monotonic, tk->clock, tk->mult);
+}
+
+static inline void old_vsyscall_fixup(struct timekeeper *tk)
+{
+	s64 remainder;
+
+	/*
+	* Store only full nanoseconds into xtime_nsec after rounding
+	* it up and add the remainder to the error difference.
+	* XXX - This is necessary to avoid small 1ns inconsistnecies caused
+	* by truncating the remainder in vsyscalls. However, it causes
+	* additional work to be done in timekeeping_adjust(). Once
+	* the vsyscall implementations are converted to use xtime_nsec
+	* (shifted nanoseconds), and CONFIG_GENERIC_TIME_VSYSCALL_OLD
+	* users are removed, this can be killed.
+	*/
+	remainder = tk->xtime_nsec & ((1ULL << tk->shift) - 1);
+	tk->xtime_nsec -= remainder;
+	tk->xtime_nsec += 1ULL << tk->shift;
+	tk->ntp_error += remainder << tk->ntp_error_shift;
+	tk->ntp_error -= (1ULL << tk->shift) << tk->ntp_error_shift;
+}
+#else
+#define old_vsyscall_fixup(tk)
+#endif
+
 static RAW_NOTIFIER_HEAD(pvclock_gtod_chain);
 
 static void update_pvclock_gtod(struct timekeeper *tk, bool was_set)
@@ -1330,33 +1373,6 @@ static cycle_t logarithmic_accumulation(struct timekeeper *tk, cycle_t offset,
 	return offset;
 }
 
-#ifdef CONFIG_GENERIC_TIME_VSYSCALL_OLD
-static inline void old_vsyscall_fixup(struct timekeeper *tk)
-{
-	s64 remainder;
-
-	/*
-	* Store only full nanoseconds into xtime_nsec after rounding
-	* it up and add the remainder to the error difference.
-	* XXX - This is necessary to avoid small 1ns inconsistnecies caused
-	* by truncating the remainder in vsyscalls. However, it causes
-	* additional work to be done in timekeeping_adjust(). Once
-	* the vsyscall implementations are converted to use xtime_nsec
-	* (shifted nanoseconds), and CONFIG_GENERIC_TIME_VSYSCALL_OLD
-	* users are removed, this can be killed.
-	*/
-	remainder = tk->xtime_nsec & ((1ULL << tk->shift) - 1);
-	tk->xtime_nsec -= remainder;
-	tk->xtime_nsec += 1ULL << tk->shift;
-	tk->ntp_error += remainder << tk->ntp_error_shift;
-	tk->ntp_error -= (1ULL << tk->shift) << tk->ntp_error_shift;
-}
-#else
-#define old_vsyscall_fixup(tk)
-#endif
-
-
-
 /**
  * update_wall_time - Uses the current clocksource to increment the wall time
  *