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timekeeping: Use inject_offset in warp_clock

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When warping the clock (from a local time RTC), use
timekeeping_inject_offset() to atomically add the offset.

This avoids any minor time error caused by the delay between
reading the time, and then setting the adjusted time.

Signed-off-by: John Stultz <john.stultz@linaro.org>
This commit is contained in:
John Stultz 2013-02-22 12:33:29 -08:00
parent c30bd09915
commit 7859e404ae
1 changed files with 3 additions and 3 deletions
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6
kernel/time.c
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@ -142,9 +142,9 @@ static inline void warp_clock(void)
struct timespec adjust; struct timespec adjust;
persistent_clock_is_local = 1; persistent_clock_is_local = 1;
adjust = current_kernel_time(); adjust.tv_sec = sys_tz.tz_minuteswest * 60;
adjust.tv_sec += sys_tz.tz_minuteswest * 60; adjust.tv_nsec = 0;
do_settimeofday(&adjust); timekeeping_inject_offset(&adjust);
} }
} }