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authorIngo Molnar <mingo@elte.hu>2009-10-25 17:30:53 +0100
committerIngo Molnar <mingo@elte.hu>2009-10-25 17:30:53 +0100
commit0b9e31e9264f1bad89856afb96da1688292f13b4 (patch)
tree7a9e9b6456dce993efeed8734de0a15a1f16ae94 /arch/m68k/kernel/time.c
parentcf82ff7ea7695b0e82ba07bc5e9f1bd03a74e1aa (diff)
parent964fe080d94db82a3268443e9b9ece4c60246414 (diff)
Merge branch 'linus' into sched/core
Conflicts: fs/proc/array.c Merge reason: resolve conflict and queue up dependent patch. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/m68k/kernel/time.c')
-rw-r--r--arch/m68k/kernel/time.c70
1 files changed, 2 insertions, 68 deletions
diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c
index 54d980795fc..17dc2a31a7c 100644
--- a/arch/m68k/kernel/time.c
+++ b/arch/m68k/kernel/time.c
@@ -91,77 +91,11 @@ void __init time_init(void)
mach_sched_init(timer_interrupt);
}
-/*
- * This version of gettimeofday has near microsecond resolution.
- */
-void do_gettimeofday(struct timeval *tv)
+u32 arch_gettimeoffset(void)
{
- unsigned long flags;
- unsigned long seq;
- unsigned long usec, sec;
- unsigned long max_ntp_tick = tick_usec - tickadj;
-
- do {
- seq = read_seqbegin_irqsave(&xtime_lock, flags);
-
- usec = mach_gettimeoffset();
-
- /*
- * If time_adjust is negative then NTP is slowing the clock
- * so make sure not to go into next possible interval.
- * Better to lose some accuracy than have time go backwards..
- */
- if (unlikely(time_adjust < 0))
- usec = min(usec, max_ntp_tick);
-
- sec = xtime.tv_sec;
- usec += xtime.tv_nsec/1000;
- } while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
-
-
- while (usec >= 1000000) {
- usec -= 1000000;
- sec++;
- }
-
- tv->tv_sec = sec;
- tv->tv_usec = usec;
-}
-
-EXPORT_SYMBOL(do_gettimeofday);
-
-int do_settimeofday(struct timespec *tv)
-{
- time_t wtm_sec, sec = tv->tv_sec;
- long wtm_nsec, nsec = tv->tv_nsec;
-
- if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
- return -EINVAL;
-
- write_seqlock_irq(&xtime_lock);
- /* This is revolting. We need to set the xtime.tv_nsec
- * correctly. However, the value in this location is
- * is value at the last tick.
- * Discover what correction gettimeofday
- * would have done, and then undo it!
- */
- nsec -= 1000 * mach_gettimeoffset();
-
- wtm_sec = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec);
- wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec);
-
- set_normalized_timespec(&xtime, sec, nsec);
- set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec);
-
- ntp_clear();
- write_sequnlock_irq(&xtime_lock);
- clock_was_set();
- return 0;
+ return mach_gettimeoffset() * 1000;
}
-EXPORT_SYMBOL(do_settimeofday);
-
-
static int __init rtc_init(void)
{
struct platform_device *pdev;