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Diffstat (limited to 'arch/alpha')
-rw-r--r--arch/alpha/kernel/time.c15
1 files changed, 5 insertions, 10 deletions
diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c
index 7c1e44420a7..581ddcc22fc 100644
--- a/arch/alpha/kernel/time.c
+++ b/arch/alpha/kernel/time.c
@@ -54,8 +54,6 @@
#include "proto.h"
#include "irq_impl.h"
-extern unsigned long wall_jiffies; /* kernel/timer.c */
-
static int set_rtc_mmss(unsigned long);
DEFINE_SPINLOCK(rtc_lock);
@@ -413,7 +411,7 @@ void
do_gettimeofday(struct timeval *tv)
{
unsigned long flags;
- unsigned long sec, usec, lost, seq;
+ unsigned long sec, usec, seq;
unsigned long delta_cycles, delta_usec, partial_tick;
do {
@@ -423,14 +421,13 @@ do_gettimeofday(struct timeval *tv)
sec = xtime.tv_sec;
usec = (xtime.tv_nsec / 1000);
partial_tick = state.partial_tick;
- lost = jiffies - wall_jiffies;
} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
#ifdef CONFIG_SMP
/* Until and unless we figure out how to get cpu cycle counters
in sync and keep them there, we can't use the rpcc tricks. */
- delta_usec = lost * (1000000 / HZ);
+ delta_usec = 0;
#else
/*
* usec = cycles * ticks_per_cycle * 2**48 * 1e6 / (2**48 * ticks)
@@ -446,8 +443,7 @@ do_gettimeofday(struct timeval *tv)
*/
delta_usec = (delta_cycles * state.scaled_ticks_per_cycle
- + partial_tick
- + (lost << FIX_SHIFT)) * 15625;
+ + partial_tick) * 15625;
delta_usec = ((delta_usec / ((1UL << (FIX_SHIFT-6-1)) * HZ)) + 1) / 2;
#endif
@@ -480,12 +476,11 @@ do_settimeofday(struct timespec *tv)
time. Without this, a full-tick error is possible. */
#ifdef CONFIG_SMP
- delta_nsec = (jiffies - wall_jiffies) * (NSEC_PER_SEC / HZ);
+ delta_nsec = 0;
#else
delta_nsec = rpcc() - state.last_time;
delta_nsec = (delta_nsec * state.scaled_ticks_per_cycle
- + state.partial_tick
- + ((jiffies - wall_jiffies) << FIX_SHIFT)) * 15625;
+ + state.partial_tick) * 15625;
delta_nsec = ((delta_nsec / ((1UL << (FIX_SHIFT-6-1)) * HZ)) + 1) / 2;
delta_nsec *= 1000;
#endif