diff options
Diffstat (limited to 'arch/m68k')
-rw-r--r-- | arch/m68k/kernel/time.c | 16 |
1 files changed, 3 insertions, 13 deletions
diff --git a/arch/m68k/kernel/time.c b/arch/m68k/kernel/time.c index 1072e4946a4a..6cfc984380d9 100644 --- a/arch/m68k/kernel/time.c +++ b/arch/m68k/kernel/time.c | |||
@@ -96,31 +96,23 @@ void time_init(void) | |||
96 | void do_gettimeofday(struct timeval *tv) | 96 | void do_gettimeofday(struct timeval *tv) |
97 | { | 97 | { |
98 | unsigned long flags; | 98 | unsigned long flags; |
99 | extern unsigned long wall_jiffies; | ||
100 | unsigned long seq; | 99 | unsigned long seq; |
101 | unsigned long usec, sec, lost; | 100 | unsigned long usec, sec; |
102 | unsigned long max_ntp_tick = tick_usec - tickadj; | 101 | unsigned long max_ntp_tick = tick_usec - tickadj; |
103 | 102 | ||
104 | do { | 103 | do { |
105 | seq = read_seqbegin_irqsave(&xtime_lock, flags); | 104 | seq = read_seqbegin_irqsave(&xtime_lock, flags); |
106 | 105 | ||
107 | usec = mach_gettimeoffset(); | 106 | usec = mach_gettimeoffset(); |
108 | lost = jiffies - wall_jiffies; | ||
109 | 107 | ||
110 | /* | 108 | /* |
111 | * If time_adjust is negative then NTP is slowing the clock | 109 | * If time_adjust is negative then NTP is slowing the clock |
112 | * so make sure not to go into next possible interval. | 110 | * so make sure not to go into next possible interval. |
113 | * Better to lose some accuracy than have time go backwards.. | 111 | * Better to lose some accuracy than have time go backwards.. |
114 | */ | 112 | */ |
115 | if (unlikely(time_adjust < 0)) { | 113 | if (unlikely(time_adjust < 0)) |
116 | usec = min(usec, max_ntp_tick); | 114 | usec = min(usec, max_ntp_tick); |
117 | 115 | ||
118 | if (lost) | ||
119 | usec += lost * max_ntp_tick; | ||
120 | } | ||
121 | else if (unlikely(lost)) | ||
122 | usec += lost * tick_usec; | ||
123 | |||
124 | sec = xtime.tv_sec; | 116 | sec = xtime.tv_sec; |
125 | usec += xtime.tv_nsec/1000; | 117 | usec += xtime.tv_nsec/1000; |
126 | } while (read_seqretry_irqrestore(&xtime_lock, seq, flags)); | 118 | } while (read_seqretry_irqrestore(&xtime_lock, seq, flags)); |
@@ -141,7 +133,6 @@ int do_settimeofday(struct timespec *tv) | |||
141 | { | 133 | { |
142 | time_t wtm_sec, sec = tv->tv_sec; | 134 | time_t wtm_sec, sec = tv->tv_sec; |
143 | long wtm_nsec, nsec = tv->tv_nsec; | 135 | long wtm_nsec, nsec = tv->tv_nsec; |
144 | extern unsigned long wall_jiffies; | ||
145 | 136 | ||
146 | if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC) | 137 | if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC) |
147 | return -EINVAL; | 138 | return -EINVAL; |
@@ -153,8 +144,7 @@ int do_settimeofday(struct timespec *tv) | |||
153 | * Discover what correction gettimeofday | 144 | * Discover what correction gettimeofday |
154 | * would have done, and then undo it! | 145 | * would have done, and then undo it! |
155 | */ | 146 | */ |
156 | nsec -= 1000 * (mach_gettimeoffset() + | 147 | nsec -= 1000 * mach_gettimeoffset(); |
157 | (jiffies - wall_jiffies) * (1000000 / HZ)); | ||
158 | 148 | ||
159 | wtm_sec = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec); | 149 | wtm_sec = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec); |
160 | wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec); | 150 | wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec); |