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/timekeeping.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/timekeeping.c')
-rw-r--r-- | kernel/time/timekeeping.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c index 2d6087c7cf9..a26429bc772 100644 --- a/kernel/time/timekeeping.c +++ b/kernel/time/timekeeping.c | |||
@@ -371,7 +371,7 @@ static __always_inline int clocksource_bigadjust(s64 error, s64 *interval, | |||
371 | * here. This is tuned so that an error of about 1 msec is adjusted | 371 | * here. This is tuned so that an error of about 1 msec is adjusted |
372 | * within about 1 sec (or 2^20 nsec in 2^SHIFT_HZ ticks). | 372 | * within about 1 sec (or 2^20 nsec in 2^SHIFT_HZ ticks). |
373 | */ | 373 | */ |
374 | error2 = clock->error >> (TICK_LENGTH_SHIFT + 22 - 2 * SHIFT_HZ); | 374 | error2 = clock->error >> (NTP_SCALE_SHIFT + 22 - 2 * SHIFT_HZ); |
375 | error2 = abs(error2); | 375 | error2 = abs(error2); |
376 | for (look_ahead = 0; error2 > 0; look_ahead++) | 376 | for (look_ahead = 0; error2 > 0; look_ahead++) |
377 | error2 >>= 2; | 377 | error2 >>= 2; |
@@ -381,7 +381,7 @@ static __always_inline int clocksource_bigadjust(s64 error, s64 *interval, | |||
381 | * remove the single look ahead already included in the error. | 381 | * remove the single look ahead already included in the error. |
382 | */ | 382 | */ |
383 | tick_error = current_tick_length() >> | 383 | tick_error = current_tick_length() >> |
384 | (TICK_LENGTH_SHIFT - clock->shift + 1); | 384 | (NTP_SCALE_SHIFT - clock->shift + 1); |
385 | tick_error -= clock->xtime_interval >> 1; | 385 | tick_error -= clock->xtime_interval >> 1; |
386 | error = ((error - tick_error) >> look_ahead) + tick_error; | 386 | error = ((error - tick_error) >> look_ahead) + tick_error; |
387 | 387 | ||
@@ -412,7 +412,7 @@ static void clocksource_adjust(s64 offset) | |||
412 | s64 error, interval = clock->cycle_interval; | 412 | s64 error, interval = clock->cycle_interval; |
413 | int adj; | 413 | int adj; |
414 | 414 | ||
415 | error = clock->error >> (TICK_LENGTH_SHIFT - clock->shift - 1); | 415 | error = clock->error >> (NTP_SCALE_SHIFT - clock->shift - 1); |
416 | if (error > interval) { | 416 | if (error > interval) { |
417 | error >>= 2; | 417 | error >>= 2; |
418 | if (likely(error <= interval)) | 418 | if (likely(error <= interval)) |
@@ -434,7 +434,7 @@ static void clocksource_adjust(s64 offset) | |||
434 | clock->xtime_interval += interval; | 434 | clock->xtime_interval += interval; |
435 | clock->xtime_nsec -= offset; | 435 | clock->xtime_nsec -= offset; |
436 | clock->error -= (interval - offset) << | 436 | clock->error -= (interval - offset) << |
437 | (TICK_LENGTH_SHIFT - clock->shift); | 437 | (NTP_SCALE_SHIFT - clock->shift); |
438 | } | 438 | } |
439 | 439 | ||
440 | /** | 440 | /** |
@@ -474,7 +474,7 @@ void update_wall_time(void) | |||
474 | 474 | ||
475 | /* accumulate error between NTP and clock interval */ | 475 | /* accumulate error between NTP and clock interval */ |
476 | clock->error += current_tick_length(); | 476 | clock->error += current_tick_length(); |
477 | clock->error -= clock->xtime_interval << (TICK_LENGTH_SHIFT - clock->shift); | 477 | clock->error -= clock->xtime_interval << (NTP_SCALE_SHIFT - clock->shift); |
478 | } | 478 | } |
479 | 479 | ||
480 | /* correct the clock when NTP error is too big */ | 480 | /* correct the clock when NTP error is too big */ |