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authorRoman Zippel <zippel@linux-m68k.org>2008-05-01 04:34:38 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-05-01 08:03:59 -0700
commit7fc5c78409479d826341b103bdf734cb4fb02436 (patch)
treee68d8edddd633a9ed410b304684343afacf36175 /kernel/time/ntp.c
parent153b5d054ac2d98ea0d86504884326b6777f683d (diff)
downloadop-kernel-dev-7fc5c78409479d826341b103bdf734cb4fb02436.zip
op-kernel-dev-7fc5c78409479d826341b103bdf734cb4fb02436.tar.gz
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.c20
1 files changed, 10 insertions, 10 deletions
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index 10fe17d..a8fd1ba 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -27,7 +27,7 @@ static u64 tick_length, tick_length_base;
#define MAX_TICKADJ 500 /* microsecs */
#define MAX_TICKADJ_SCALED (((u64)(MAX_TICKADJ * NSEC_PER_USEC) << \
- TICK_LENGTH_SHIFT) / NTP_INTERVAL_FREQ)
+ NTP_SCALE_SHIFT) / NTP_INTERVAL_FREQ)
/*
* phase-lock loop variables
@@ -48,13 +48,13 @@ static long ntp_tick_adj;
static void ntp_update_frequency(void)
{
u64 second_length = (u64)(tick_usec * NSEC_PER_USEC * USER_HZ)
- << TICK_LENGTH_SHIFT;
- second_length += (s64)ntp_tick_adj << TICK_LENGTH_SHIFT;
+ << NTP_SCALE_SHIFT;
+ second_length += (s64)ntp_tick_adj << NTP_SCALE_SHIFT;
second_length += time_freq;
tick_length_base = second_length;
- tick_nsec = div_u64(second_length, HZ) >> TICK_LENGTH_SHIFT;
+ tick_nsec = div_u64(second_length, HZ) >> NTP_SCALE_SHIFT;
tick_length_base = div_u64(tick_length_base, NTP_INTERVAL_FREQ);
}
@@ -86,10 +86,10 @@ static void ntp_update_offset(long offset)
time_reftime = xtime.tv_sec;
freq_adj = (s64)offset * mtemp;
- freq_adj <<= TICK_LENGTH_SHIFT - 2 * (SHIFT_PLL + 2 + time_constant);
+ freq_adj <<= NTP_SCALE_SHIFT - 2 * (SHIFT_PLL + 2 + time_constant);
time_status &= ~STA_MODE;
if (mtemp >= MINSEC && (time_status & STA_FLL || mtemp > MAXSEC)) {
- freq_adj += div_s64((s64)offset << (TICK_LENGTH_SHIFT - SHIFT_FLL),
+ freq_adj += div_s64((s64)offset << (NTP_SCALE_SHIFT - SHIFT_FLL),
mtemp);
time_status |= STA_MODE;
}
@@ -97,7 +97,7 @@ static void ntp_update_offset(long offset)
freq_adj = min(freq_adj, MAXFREQ_SCALED);
time_freq = max(freq_adj, -MAXFREQ_SCALED);
- time_offset = div_s64((s64)offset << TICK_LENGTH_SHIFT, NTP_INTERVAL_FREQ);
+ time_offset = div_s64((s64)offset << NTP_SCALE_SHIFT, NTP_INTERVAL_FREQ);
}
/**
@@ -197,7 +197,7 @@ void second_overflow(void)
tick_length -= MAX_TICKADJ_SCALED;
} else {
tick_length += (s64)(time_adjust * NSEC_PER_USEC /
- NTP_INTERVAL_FREQ) << TICK_LENGTH_SHIFT;
+ NTP_INTERVAL_FREQ) << NTP_SCALE_SHIFT;
time_adjust = 0;
}
}
@@ -369,13 +369,13 @@ int do_adjtimex(struct timex *txc)
txc->offset = save_adjust;
else {
txc->offset = shift_right(time_offset * NTP_INTERVAL_FREQ,
- TICK_LENGTH_SHIFT);
+ NTP_SCALE_SHIFT);
if (!(time_status & STA_NANO))
txc->offset /= NSEC_PER_USEC;
}
txc->freq = shift_right((s32)(time_freq >> PPM_SCALE_INV_SHIFT) *
(s64)PPM_SCALE_INV,
- TICK_LENGTH_SHIFT);
+ NTP_SCALE_SHIFT);
txc->maxerror = time_maxerror;
txc->esterror = time_esterror;
txc->status = time_status;
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