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-rw-r--r--include/linux/ktime.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/ktime.h b/include/linux/ktime.h
index 2b139f66027f..923665958f90 100644
--- a/include/linux/ktime.h
+++ b/include/linux/ktime.h
@@ -279,6 +279,11 @@ static inline s64 ktime_to_us(const ktime_t kt)
return (s64) tv.tv_sec * USEC_PER_SEC + tv.tv_usec;
}
+static inline s64 ktime_us_delta(const ktime_t later, const ktime_t earlier)
+{
+ return ktime_to_us(ktime_sub(later, earlier));
+}
+
/*
* The resolution of the clocks. The resolution value is returned in
* the clock_getres() system call to give application programmers an