diff options
| -rw-r--r-- | include/linux/time32.h | 1 | ||||
| -rw-r--r-- | include/uapi/linux/time.h | 12 | ||||
| -rw-r--r-- | kernel/time/time.c | 12 |
3 files changed, 25 insertions, 0 deletions
diff --git a/include/linux/time32.h b/include/linux/time32.h index 65b1de25198d..d2bcd4377b56 100644 --- a/include/linux/time32.h +++ b/include/linux/time32.h @@ -217,5 +217,6 @@ static inline s64 timeval_to_ns(const struct timeval *tv) * Returns the timeval representation of the nsec parameter. */ extern struct timeval ns_to_timeval(const s64 nsec); +extern struct __kernel_old_timeval ns_to_kernel_old_timeval(s64 nsec); #endif diff --git a/include/uapi/linux/time.h b/include/uapi/linux/time.h index 61a187df8da2..16a296612ba4 100644 --- a/include/uapi/linux/time.h +++ b/include/uapi/linux/time.h @@ -43,6 +43,18 @@ struct itimerval { }; /* + * legacy timeval structure, only embedded in structures that + * traditionally used 'timeval' to pass time intervals (not absolute + * times). Do not add new users. If user space fails to compile + * here, this is probably because it is not y2038 safe and needs to + * be changed to use another interface. + */ +struct __kernel_old_timeval { + __kernel_long_t tv_sec; + __kernel_long_t tv_usec; +}; + +/* * The IDs of the various system clocks (for POSIX.1b interval timers): */ #define CLOCK_REALTIME 0 diff --git a/kernel/time/time.c b/kernel/time/time.c index bd4e6c7dd689..3044d48ebe56 100644 --- a/kernel/time/time.c +++ b/kernel/time/time.c @@ -488,6 +488,18 @@ struct timeval ns_to_timeval(const s64 nsec) } EXPORT_SYMBOL(ns_to_timeval); +struct __kernel_old_timeval ns_to_kernel_old_timeval(const s64 nsec) +{ + struct timespec64 ts = ns_to_timespec64(nsec); + struct __kernel_old_timeval tv; + + tv.tv_sec = ts.tv_sec; + tv.tv_usec = (suseconds_t)ts.tv_nsec / 1000; + + return tv; +} +EXPORT_SYMBOL(ns_to_kernel_old_timeval); + /** * set_normalized_timespec - set timespec sec and nsec parts and normalize * |