diff options
Diffstat (limited to 'kernel/trace/trace-clock-32-to-64.c')
| -rw-r--r-- | kernel/trace/trace-clock-32-to-64.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/kernel/trace/trace-clock-32-to-64.c b/kernel/trace/trace-clock-32-to-64.c index 3134e47de78..11d961d8acf 100644 --- a/kernel/trace/trace-clock-32-to-64.c +++ b/kernel/trace/trace-clock-32-to-64.c @@ -153,13 +153,15 @@ static void tsc_timer_fct(unsigned long data) */ static int __init precalc_stsc_interval(void) { + u64 rem_freq, rem_interval; + precalc_expire = - div_u64(HW_BITMASK, - ((div_u64(trace_clock_frequency(), HZ) + __iter_div_u64_rem(HW_BITMASK, + ((__iter_div_u64_rem(trace_clock_frequency(), HZ, &rem_freq) * trace_clock_freq_scale()) << 1) - 1 - - (EXPECTED_INTERRUPT_LATENCY * HZ / 1000)) + - (EXPECTED_INTERRUPT_LATENCY * HZ / 1000), &rem_interval) >> 1; WARN_ON(precalc_expire == 0); printk(KERN_DEBUG "Synthetic TSC timer will fire each %u jiffies.\n", |