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authorThomas Gleixner <tglx@linutronix.de>2013-02-21 22:51:36 +0000
committerJohn Stultz <john.stultz@linaro.org>2013-03-22 16:19:59 -0700
commit23a9537a6999fce16f06ca61fc6cac52c8fbdc86 (patch)
treedb1f5b82730a087bf36be7dc3ad46354a79877ea /kernel/time/timekeeping.c
parent90adda98b89aaf68b06014ecf805b6c477daa19b (diff)
timekeeping: Calc stuff once
Calculate the cycle interval shifted value once. No functional change, just makes the code more readable. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: John Stultz <john.stultz@linaro.org>
Diffstat (limited to 'kernel/time/timekeeping.c')
-rw-r--r--kernel/time/timekeeping.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 8061ae0be7bd..c442a4ccccc9 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -1250,15 +1250,16 @@ static inline void accumulate_nsecs_to_secs(struct timekeeper *tk)
static cycle_t logarithmic_accumulation(struct timekeeper *tk, cycle_t offset,
u32 shift)
{
+ cycle_t interval = tk->cycle_interval << shift;
u64 raw_nsecs;
/* If the offset is smaller then a shifted interval, do nothing */
- if (offset < tk->cycle_interval<<shift)
+ if (offset < interval)
return offset;
/* Accumulate one shifted interval */
- offset -= tk->cycle_interval << shift;
- tk->clock->cycle_last += tk->cycle_interval << shift;
+ offset -= interval;
+ tk->clock->cycle_last += interval;
tk->xtime_nsec += tk->xtime_interval << shift;
accumulate_nsecs_to_secs(tk);