return ktime_add_ns(kt, usec * 1000); } static inline ktime_t ktime_add_ms(const ktime_t kt, const u64 msec) { return ktime_add_ns(kt, msec * NSEC_PER_MSEC); } static inline ktime_t ktime_sub_us(const ktime_t kt, const u64 usec) { return ktime_sub_ns(kt, usec ...
ktime_divns函数用于ktime_t时间除以纳秒值。ktime_to_us和ktime_to_ms将时间值转换为微秒和毫秒。ktime_us_delta和ktime_ms_delta用于时间差计算。ktime_add_safe安全相加ktime_t值。ktime_to_timespec64_cond进行转换并返回成功标志。ns_to_ktime和ms_to_ktime进行单位转换。timekeeping.h 时...
ktime_add_us函数和ktime_add_ms函数的作用是将微秒和毫秒单位的时间值转换为纳秒后,添加到给定的ktime_t类型的时间变量中,得到一个新的ktime_t类型的时间值。 //189~197行staticinlinektime_tktime_sub_us(constktime_tkt,constu64usec){returnktime_sub_ns(kt,usec*NSEC_PER_USEC);}staticinlinektime...
接下来,我们可以使用ktime_to_ms()和ktime_to_us()函数将ktime_t值转换为毫秒或微秒。这两个函数分别接受一个ktime_t类型的参数,并返回相应的毫秒或微秒数。例如: ``` ktime_t start = ktime_get(); u64 start_ms = ktime_to_ms(start); ``` 此外,ktime还提供了一些函数用于比较和操作时间。
lookup_user_key Look up a key ID given us by userspace with a given permissions mask to get* the key it refers to.* Flags can be passed to request that special keyrings be created if referred* to directly, to permit partially constructed keys to be found and to skip proc_keys_show ...
static inline void hrtimer_add_expires(struct hrtimer *timer, ktime_t time) @@ -256,11 +256,11 @@ static inline ktime_t hrtimer_get_softexpires(const struct hrtimer *timer)static inline s64 hrtimer_get_expires_tv64(const struct hrtimer *timer)...
ktime_add_us(const ktime_t kt, const u64 usec) { return ktime_add_ns(kt, usec * NSEC_PER_USEC); } static inline ktime_t ktime_add_ms(const ktime_t kt, const u64 msec) { return ktime_add_ns(kt, msec * NSEC_PER_MSEC); } static inline ktime_t ktime...