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ntp: Access tick_length variable via ntp_tick_length()

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Currently the NTP managed tick_length value is accessed globally,
in preparations for locking cleanups, make sure it is accessed via
a function and mark it as static.

CC: Thomas Gleixner <tglx@linutronix.de>
CC: Eric Dumazet <eric.dumazet@gmail.com>
CC: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
This commit is contained in:
John Stultz 2011-11-14 13:18:07 -08:00
parent 8357929e6a
commit ea7cf49a76
3 changed files with 12 additions and 5 deletions
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2
include/linux/timex.h
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@ -250,7 +250,7 @@ extern void ntp_clear(void);
#define NTP_INTERVAL_LENGTH (NSEC_PER_SEC/NTP_INTERVAL_FREQ)
/* Returns how long ticks are at present, in ns / 2^NTP_SCALE_SHIFT. */
extern u64 tick_length;
extern u64 ntp_tick_length(void);
extern void second_overflow(void);
extern int do_adjtimex(struct timex *);