[RFC][patch 3/5] remove clocksource inline functions

[Martin Schwidefsky]

From: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>

Remove clocksource_read, clocksource_enable and clocksource_disable
inline functions. No functional change.

Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: john stultz <johnstul@xxxxxxxxxx>
Signed-off-by: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
---
 kernel/time/clocksource.c |   18 ++++++++++++------
 kernel/time/timekeeping.c |   13 ++++++-------
 2 files changed, 18 insertions(+), 13 deletions(-)

Index: linux-2.6/kernel/time/clocksource.c
===================================================================
--- linux-2.6.orig/kernel/time/clocksource.c
+++ linux-2.6/kernel/time/clocksource.c
@@ -517,7 +517,7 @@ void clocksource_forward_now(void)
 	cycle_t cycle_now, cycle_delta;
 	s64 nsec;
 
-	cycle_now = clocksource_read(clock);
+	cycle_now = clock->read(clock);
 	cycle_delta = (cycle_now - clock->cycle_last) & clock->mask;
 	clock->cycle_last = cycle_now;
 
@@ -567,16 +567,19 @@ void change_clocksource(void)
 
 	clocksource_forward_now();
 
-	if (clocksource_enable(new))
+	if (new->enable && !new->enable(new))
 		return;
 
+	/* save mult_orig after successful enable */
+	new->mult_orig = new->mult;
+
 	new->raw_time = clock->raw_time;
 	old = clock;
 	clock = new;
-	clocksource_disable(old);
+	if (old->disable)
+		old->disable(old);
 
-	clock->cycle_last = 0;
-	clock->cycle_last = clocksource_read(clock);
+	clock->cycle_last = clock->read(clock);
 	clock->error = 0;
 	clock->xtime_nsec = 0;
 	clocksource_calculate_interval(clock, NTP_INTERVAL_LENGTH);
@@ -655,7 +658,10 @@ void clocksource_unregister(struct clock
 void __init clocksource_init(void)
 {
 	clock = clocksource_get_next();
-	clocksource_enable(clock);
+	if (clock->enable)
+		clock->enable(clock);
+	/* save mult_orig on enable */
+	clock->mult_orig = clock->mult;
 	clocksource_calculate_interval(clock, NTP_INTERVAL_LENGTH);
 	clock->cycle_last = clock->read(clock);
 }
Index: linux-2.6/kernel/time/timekeeping.c
===================================================================
--- linux-2.6.orig/kernel/time/timekeeping.c
+++ linux-2.6/kernel/time/timekeeping.c
@@ -78,7 +78,7 @@ void getnstimeofday(struct timespec *ts)
 		*ts = xtime;
 
 		/* read clocksource: */
-		cycle_now = clocksource_read(clock);
+		cycle_now = clock->read(clock);
 
 		/* calculate the delta since the last update_wall_time: */
 		cycle_delta = (cycle_now - clock->cycle_last) & clock->mask;
@@ -110,7 +110,7 @@ ktime_t ktime_get(void)
 		nsecs = xtime.tv_nsec + wall_to_monotonic.tv_nsec;
 
 		/* read clocksource: */
-		cycle_now = clocksource_read(clock);
+		cycle_now = clock->read(clock);
 
 		/* calculate the delta since the last update_wall_time: */
 		cycle_delta = (cycle_now - clock->cycle_last) & clock->mask;
@@ -150,7 +150,7 @@ void ktime_get_ts(struct timespec *ts)
 		tomono = wall_to_monotonic;
 
 		/* read clocksource: */
-		cycle_now = clocksource_read(clock);
+		cycle_now = clock->read(clock);
 
 		/* calculate the delta since the last update_wall_time: */
 		cycle_delta = (cycle_now - clock->cycle_last) & clock->mask;
@@ -296,7 +296,7 @@ void getrawmonotonic(struct timespec *ts
 		seq = read_seqbegin(&xtime_lock);
 
 		/* read clocksource: */
-		cycle_now = clocksource_read(clock);
+		cycle_now = clock->read(clock);
 
 		/* calculate the delta since the last update_wall_time: */
 		cycle_delta = (cycle_now - clock->cycle_last) & clock->mask;
@@ -396,8 +396,7 @@ static int timekeeping_resume(struct sys
 	}
 	update_xtime_cache(0);
 	/* re-base the last cycle value */
-	clock->cycle_last = 0;
-	clock->cycle_last = clocksource_read(clock);
+	clock->cycle_last = clock->read(clock);
 	clock->error = 0;
 	timekeeping_suspended = 0;
 	write_sequnlock_irqrestore(&xtime_lock, flags);
@@ -464,7 +463,7 @@ void update_wall_time(void)
 		return;
 
 #ifdef CONFIG_GENERIC_TIME
-	offset = (clocksource_read(clock) - clock->cycle_last) & clock->mask;
+	offset = (clock->read(clock) - clock->cycle_last) & clock->mask;
 #else
 	offset = clock->cycle_interval;
 #endif

-- 
blue skies,
   Martin.

"Reality continues to ruin my life." - Calvin.

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