diff options
Diffstat (limited to 'arch/sparc/kernel/pcic.c')
-rw-r--r-- | arch/sparc/kernel/pcic.c | 16 |
1 files changed, 2 insertions, 14 deletions
diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c index e19b1bad9bc5..edb6cc665f56 100644 --- a/arch/sparc/kernel/pcic.c +++ b/arch/sparc/kernel/pcic.c | |||
@@ -765,8 +765,6 @@ static __inline__ unsigned long do_gettimeoffset(void) | |||
765 | return count; | 765 | return count; |
766 | } | 766 | } |
767 | 767 | ||
768 | extern unsigned long wall_jiffies; | ||
769 | |||
770 | static void pci_do_gettimeofday(struct timeval *tv) | 768 | static void pci_do_gettimeofday(struct timeval *tv) |
771 | { | 769 | { |
772 | unsigned long flags; | 770 | unsigned long flags; |
@@ -775,26 +773,17 @@ static void pci_do_gettimeofday(struct timeval *tv) | |||
775 | unsigned long max_ntp_tick = tick_usec - tickadj; | 773 | unsigned long max_ntp_tick = tick_usec - tickadj; |
776 | 774 | ||
777 | do { | 775 | do { |
778 | unsigned long lost; | ||
779 | |||
780 | seq = read_seqbegin_irqsave(&xtime_lock, flags); | 776 | seq = read_seqbegin_irqsave(&xtime_lock, flags); |
781 | usec = do_gettimeoffset(); | 777 | usec = do_gettimeoffset(); |
782 | lost = jiffies - wall_jiffies; | ||
783 | 778 | ||
784 | /* | 779 | /* |
785 | * If time_adjust is negative then NTP is slowing the clock | 780 | * If time_adjust is negative then NTP is slowing the clock |
786 | * so make sure not to go into next possible interval. | 781 | * so make sure not to go into next possible interval. |
787 | * Better to lose some accuracy than have time go backwards.. | 782 | * Better to lose some accuracy than have time go backwards.. |
788 | */ | 783 | */ |
789 | if (unlikely(time_adjust < 0)) { | 784 | if (unlikely(time_adjust < 0)) |
790 | usec = min(usec, max_ntp_tick); | 785 | usec = min(usec, max_ntp_tick); |
791 | 786 | ||
792 | if (lost) | ||
793 | usec += lost * max_ntp_tick; | ||
794 | } | ||
795 | else if (unlikely(lost)) | ||
796 | usec += lost * tick_usec; | ||
797 | |||
798 | sec = xtime.tv_sec; | 787 | sec = xtime.tv_sec; |
799 | usec += (xtime.tv_nsec / 1000); | 788 | usec += (xtime.tv_nsec / 1000); |
800 | } while (read_seqretry_irqrestore(&xtime_lock, seq, flags)); | 789 | } while (read_seqretry_irqrestore(&xtime_lock, seq, flags)); |
@@ -819,8 +808,7 @@ static int pci_do_settimeofday(struct timespec *tv) | |||
819 | * wall time. Discover what correction gettimeofday() would have | 808 | * wall time. Discover what correction gettimeofday() would have |
820 | * made, and then undo it! | 809 | * made, and then undo it! |
821 | */ | 810 | */ |
822 | tv->tv_nsec -= 1000 * (do_gettimeoffset() + | 811 | tv->tv_nsec -= 1000 * do_gettimeoffset(); |
823 | (jiffies - wall_jiffies) * (USEC_PER_SEC / HZ)); | ||
824 | while (tv->tv_nsec < 0) { | 812 | while (tv->tv_nsec < 0) { |
825 | tv->tv_nsec += NSEC_PER_SEC; | 813 | tv->tv_nsec += NSEC_PER_SEC; |
826 | tv->tv_sec--; | 814 | tv->tv_sec--; |