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[PATCH] Time: Let user request precision from current_tick_length()

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Change the current_tick_length() function so it takes an argument which
specifies how much precision to return in shifted nanoseconds.  This provides
a simple way to convert between NTPs internal nanoseconds shifted by
(SHIFT_SCALE - 10) to other shifted nanosecond units that are used by the
clocksource abstraction.

Signed-off-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
john stultz 2006-06-26 00:25:07 -07:00 • committed by Linus Torvalds
commit 260a42309b
3 changed files with 19 additions and 6 deletions
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2
include/linux/timex.h
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@ -304,7 +304,7 @@ time_interpolator_reset(void)
#endif /* !CONFIG_TIME_INTERPOLATION */
/* Returns how long ticks are at present, in ns / 2^(SHIFT_SCALE-10). */
extern u64 current_tick_length(void);
extern u64 current_tick_length(long);
extern int do_adjtimex(struct timex *);