diff mbox series

[09/19] timekeeping: Move timekeeping helper functions

Message ID 20240308131512.44324-10-adrian.hunter@intel.com (mailing list archive)
State Handled Elsewhere
Headers show
Series timekeeping: Handle potential multiplication overflow | expand

Commit Message

Adrian Hunter March 8, 2024, 1:15 p.m. UTC 
Move timekeeping helper functions to prepare for their reuse.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
 kernel/time/timekeeping.c | 34 +++++++++++++++++-----------------
 1 file changed, 17 insertions(+), 17 deletions(-)
diff mbox series

Patch

diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index b58dffc58a8f..3375f0a6400f 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -381,6 +381,23 @@  static inline u64 timekeeping_delta_to_ns(const struct tk_read_base *tkr, u64 de
 	return nsec;
 }
 
+static inline u64 timekeeping_cycles_to_ns(const struct tk_read_base *tkr, u64 cycles)
+{
+	u64 delta;
+
+	/* calculate the delta since the last update_wall_time */
+	delta = clocksource_delta(cycles, tkr->cycle_last, tkr->mask);
+	return timekeeping_delta_to_ns(tkr, delta);
+}
+
+static __always_inline u64 fast_tk_get_delta_ns(struct tk_read_base *tkr)
+{
+	u64 delta, cycles = tk_clock_read(tkr);
+
+	delta = clocksource_delta(cycles, tkr->cycle_last, tkr->mask);
+	return timekeeping_delta_to_ns(tkr, delta);
+}
+
 static inline u64 timekeeping_get_ns(const struct tk_read_base *tkr)
 {
 	u64 delta;
@@ -389,15 +406,6 @@  static inline u64 timekeeping_get_ns(const struct tk_read_base *tkr)
 	return timekeeping_delta_to_ns(tkr, delta);
 }
 
-static inline u64 timekeeping_cycles_to_ns(const struct tk_read_base *tkr, u64 cycles)
-{
-	u64 delta;
-
-	/* calculate the delta since the last update_wall_time */
-	delta = clocksource_delta(cycles, tkr->cycle_last, tkr->mask);
-	return timekeeping_delta_to_ns(tkr, delta);
-}
-
 /**
  * update_fast_timekeeper - Update the fast and NMI safe monotonic timekeeper.
  * @tkr: Timekeeping readout base from which we take the update
@@ -431,14 +439,6 @@  static void update_fast_timekeeper(const struct tk_read_base *tkr,
 	memcpy(base + 1, base, sizeof(*base));
 }
 
-static __always_inline u64 fast_tk_get_delta_ns(struct tk_read_base *tkr)
-{
-	u64 delta, cycles = tk_clock_read(tkr);
-
-	delta = clocksource_delta(cycles, tkr->cycle_last, tkr->mask);
-	return timekeeping_delta_to_ns(tkr, delta);
-}
-
 static __always_inline u64 __ktime_get_fast_ns(struct tk_fast *tkf)
 {
 	struct tk_read_base *tkr;