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authorJohn Stultz <john.stultz@linaro.org>2011-02-01 13:52:17 +0000
committerThomas Gleixner <tglx@linutronix.de>2011-02-02 15:28:18 +0100
commitc528f7c6c208f1fae6b4025957173dec045e5f21 (patch)
tree86986bf39f82622ea81179dad3382fc4580875a8 /include/linux/time.h
parent0061748dd2400d0bcd4d49d258db5d7b5d106ca0 (diff)
downloadop-kernel-dev-c528f7c6c208f1fae6b4025957173dec045e5f21.zip
op-kernel-dev-c528f7c6c208f1fae6b4025957173dec045e5f21.tar.gz
time: Introduce timekeeping_inject_offset
This adds a kernel-internal timekeeping interface to add or subtract a fixed amount from CLOCK_REALTIME. This makes it so kernel users or interfaces trying to do so do not have to read the time, then add an offset and then call settimeofday(), which adds some extra error in comparision to just simply adding the offset in the kernel timekeeping core. Signed-off-by: John Stultz <john.stultz@linaro.org> Signed-off-by: Richard Cochran <richard.cochran@omicron.at> LKML-Reference: <20110201134419.584311693@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/linux/time.h')
-rw-r--r--include/linux/time.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/time.h b/include/linux/time.h
index 7c44e77..379b903 100644
--- a/include/linux/time.h
+++ b/include/linux/time.h
@@ -166,6 +166,7 @@ extern struct timespec timespec_trunc(struct timespec t, unsigned gran);
extern int timekeeping_valid_for_hres(void);
extern u64 timekeeping_max_deferment(void);
extern void timekeeping_leap_insert(int leapsecond);
+extern int timekeeping_inject_offset(struct timespec *ts);
struct tms;
extern void do_sys_times(struct tms *);
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