diff options
author | Roman Zippel <zippel@linux-m68k.org> | 2008-05-01 07:34:38 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-05-01 11:03:59 -0400 |
commit | 7fc5c78409479d826341b103bdf734cb4fb02436 (patch) | |
tree | e68d8edddd633a9ed410b304684343afacf36175 /kernel/time/ntp.c | |
parent | 153b5d054ac2d98ea0d86504884326b6777f683d (diff) |
ntp: rename TICK_LENGTH_SHIFT to NTP_SCALE_SHIFT
As TICK_LENGTH_SHIFT is used for more than just the tick length, the name
isn't quite approriate anymore, so this renames it to NTP_SCALE_SHIFT.
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/time/ntp.c')
-rw-r--r-- | kernel/time/ntp.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c index 10fe17df45a0..a8fd1ba1ef19 100644 --- a/kernel/time/ntp.c +++ b/kernel/time/ntp.c | |||
@@ -27,7 +27,7 @@ static u64 tick_length, tick_length_base; | |||
27 | 27 | ||
28 | #define MAX_TICKADJ 500 /* microsecs */ | 28 | #define MAX_TICKADJ 500 /* microsecs */ |
29 | #define MAX_TICKADJ_SCALED (((u64)(MAX_TICKADJ * NSEC_PER_USEC) << \ | 29 | #define MAX_TICKADJ_SCALED (((u64)(MAX_TICKADJ * NSEC_PER_USEC) << \ |
30 | TICK_LENGTH_SHIFT) / NTP_INTERVAL_FREQ) | 30 | NTP_SCALE_SHIFT) / NTP_INTERVAL_FREQ) |
31 | 31 | ||
32 | /* | 32 | /* |
33 | * phase-lock loop variables | 33 | * phase-lock loop variables |
@@ -48,13 +48,13 @@ static long ntp_tick_adj; | |||
48 | static void ntp_update_frequency(void) | 48 | static void ntp_update_frequency(void) |
49 | { | 49 | { |
50 | u64 second_length = (u64)(tick_usec * NSEC_PER_USEC * USER_HZ) | 50 | u64 second_length = (u64)(tick_usec * NSEC_PER_USEC * USER_HZ) |
51 | << TICK_LENGTH_SHIFT; | 51 | << NTP_SCALE_SHIFT; |
52 | second_length += (s64)ntp_tick_adj << TICK_LENGTH_SHIFT; | 52 | second_length += (s64)ntp_tick_adj << NTP_SCALE_SHIFT; |
53 | second_length += time_freq; | 53 | second_length += time_freq; |
54 | 54 | ||
55 | tick_length_base = second_length; | 55 | tick_length_base = second_length; |
56 | 56 | ||
57 | tick_nsec = div_u64(second_length, HZ) >> TICK_LENGTH_SHIFT; | 57 | tick_nsec = div_u64(second_length, HZ) >> NTP_SCALE_SHIFT; |
58 | tick_length_base = div_u64(tick_length_base, NTP_INTERVAL_FREQ); | 58 | tick_length_base = div_u64(tick_length_base, NTP_INTERVAL_FREQ); |
59 | } | 59 | } |
60 | 60 | ||
@@ -86,10 +86,10 @@ static void ntp_update_offset(long offset) | |||
86 | time_reftime = xtime.tv_sec; | 86 | time_reftime = xtime.tv_sec; |
87 | 87 | ||
88 | freq_adj = (s64)offset * mtemp; | 88 | freq_adj = (s64)offset * mtemp; |
89 | freq_adj <<= TICK_LENGTH_SHIFT - 2 * (SHIFT_PLL + 2 + time_constant); | 89 | freq_adj <<= NTP_SCALE_SHIFT - 2 * (SHIFT_PLL + 2 + time_constant); |
90 | time_status &= ~STA_MODE; | 90 | time_status &= ~STA_MODE; |
91 | if (mtemp >= MINSEC && (time_status & STA_FLL || mtemp > MAXSEC)) { | 91 | if (mtemp >= MINSEC && (time_status & STA_FLL || mtemp > MAXSEC)) { |
92 | freq_adj += div_s64((s64)offset << (TICK_LENGTH_SHIFT - SHIFT_FLL), | 92 | freq_adj += div_s64((s64)offset << (NTP_SCALE_SHIFT - SHIFT_FLL), |
93 | mtemp); | 93 | mtemp); |
94 | time_status |= STA_MODE; | 94 | time_status |= STA_MODE; |
95 | } | 95 | } |
@@ -97,7 +97,7 @@ static void ntp_update_offset(long offset) | |||
97 | freq_adj = min(freq_adj, MAXFREQ_SCALED); | 97 | freq_adj = min(freq_adj, MAXFREQ_SCALED); |
98 | time_freq = max(freq_adj, -MAXFREQ_SCALED); | 98 | time_freq = max(freq_adj, -MAXFREQ_SCALED); |
99 | 99 | ||
100 | time_offset = div_s64((s64)offset << TICK_LENGTH_SHIFT, NTP_INTERVAL_FREQ); | 100 | time_offset = div_s64((s64)offset << NTP_SCALE_SHIFT, NTP_INTERVAL_FREQ); |
101 | } | 101 | } |
102 | 102 | ||
103 | /** | 103 | /** |
@@ -197,7 +197,7 @@ void second_overflow(void) | |||
197 | tick_length -= MAX_TICKADJ_SCALED; | 197 | tick_length -= MAX_TICKADJ_SCALED; |
198 | } else { | 198 | } else { |
199 | tick_length += (s64)(time_adjust * NSEC_PER_USEC / | 199 | tick_length += (s64)(time_adjust * NSEC_PER_USEC / |
200 | NTP_INTERVAL_FREQ) << TICK_LENGTH_SHIFT; | 200 | NTP_INTERVAL_FREQ) << NTP_SCALE_SHIFT; |
201 | time_adjust = 0; | 201 | time_adjust = 0; |
202 | } | 202 | } |
203 | } | 203 | } |
@@ -369,13 +369,13 @@ int do_adjtimex(struct timex *txc) | |||
369 | txc->offset = save_adjust; | 369 | txc->offset = save_adjust; |
370 | else { | 370 | else { |
371 | txc->offset = shift_right(time_offset * NTP_INTERVAL_FREQ, | 371 | txc->offset = shift_right(time_offset * NTP_INTERVAL_FREQ, |
372 | TICK_LENGTH_SHIFT); | 372 | NTP_SCALE_SHIFT); |
373 | if (!(time_status & STA_NANO)) | 373 | if (!(time_status & STA_NANO)) |
374 | txc->offset /= NSEC_PER_USEC; | 374 | txc->offset /= NSEC_PER_USEC; |
375 | } | 375 | } |
376 | txc->freq = shift_right((s32)(time_freq >> PPM_SCALE_INV_SHIFT) * | 376 | txc->freq = shift_right((s32)(time_freq >> PPM_SCALE_INV_SHIFT) * |
377 | (s64)PPM_SCALE_INV, | 377 | (s64)PPM_SCALE_INV, |
378 | TICK_LENGTH_SHIFT); | 378 | NTP_SCALE_SHIFT); |
379 | txc->maxerror = time_maxerror; | 379 | txc->maxerror = time_maxerror; |
380 | txc->esterror = time_esterror; | 380 | txc->esterror = time_esterror; |
381 | txc->status = time_status; | 381 | txc->status = time_status; |