patch-2.4.23 linux-2.4.23/arch/i386/kernel/time.c
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- Lines: 26
- Date:
2003-11-28 10:26:19.000000000 -0800
- Orig file:
linux-2.4.22/arch/i386/kernel/time.c
- Orig date:
2003-06-13 07:51:29.000000000 -0700
diff -urN linux-2.4.22/arch/i386/kernel/time.c linux-2.4.23/arch/i386/kernel/time.c
@@ -279,6 +279,7 @@
static inline void mark_timeoffset_cyclone(void)
{
int count;
+ unsigned long lost;
unsigned long delta = last_cyclone_timer;
spin_lock(&i8253_lock);
/* quickly read the cyclone timer */
@@ -293,11 +294,12 @@
spin_unlock(&i8253_lock);
/*lost tick compensation*/
- delta = last_cyclone_timer - delta;
- if(delta > loops_per_jiffy+2000){
- delta = (delta/loops_per_jiffy)-1;
- jiffies += delta;
- }
+ delta = last_cyclone_timer - delta;
+ delta /= (CYCLONE_TIMER_FREQ/1000000);
+ delta += delay_at_last_interrupt;
+ lost = delta/(1000000/HZ);
+ if (lost >= 2)
+ jiffies += lost-1;
count = ((LATCH-1) - count) * TICK_SIZE;
delay_at_last_interrupt = (count + LATCH/2) / LATCH;
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