diff options
Diffstat (limited to 'kernel/time/time.c')
| -rw-r--r-- | kernel/time/time.c | 71 |
1 files changed, 10 insertions, 61 deletions
diff --git a/kernel/time/time.c b/kernel/time/time.c index 44a8c1402133..bd4e6c7dd689 100644 --- a/kernel/time/time.c +++ b/kernel/time/time.c @@ -82,7 +82,7 @@ SYSCALL_DEFINE1(time, time_t __user *, tloc) SYSCALL_DEFINE1(stime, time_t __user *, tptr) { - struct timespec tv; + struct timespec64 tv; int err; if (get_user(tv.tv_sec, tptr)) @@ -90,11 +90,11 @@ SYSCALL_DEFINE1(stime, time_t __user *, tptr) tv.tv_nsec = 0; - err = security_settime(&tv, NULL); + err = security_settime64(&tv, NULL); if (err) return err; - do_settimeofday(&tv); + do_settimeofday64(&tv); return 0; } @@ -122,7 +122,7 @@ COMPAT_SYSCALL_DEFINE1(time, compat_time_t __user *, tloc) COMPAT_SYSCALL_DEFINE1(stime, compat_time_t __user *, tptr) { - struct timespec tv; + struct timespec64 tv; int err; if (get_user(tv.tv_sec, tptr)) @@ -130,11 +130,11 @@ COMPAT_SYSCALL_DEFINE1(stime, compat_time_t __user *, tptr) tv.tv_nsec = 0; - err = security_settime(&tv, NULL); + err = security_settime64(&tv, NULL); if (err) return err; - do_settimeofday(&tv); + do_settimeofday64(&tv); return 0; } @@ -158,40 +158,6 @@ SYSCALL_DEFINE2(gettimeofday, struct timeval __user *, tv, } /* - * Indicates if there is an offset between the system clock and the hardware - * clock/persistent clock/rtc. - */ -int persistent_clock_is_local; - -/* - * Adjust the time obtained from the CMOS to be UTC time instead of - * local time. - * - * This is ugly, but preferable to the alternatives. Otherwise we - * would either need to write a program to do it in /etc/rc (and risk - * confusion if the program gets run more than once; it would also be - * hard to make the program warp the clock precisely n hours) or - * compile in the timezone information into the kernel. Bad, bad.... - * - * - TYT, 1992-01-01 - * - * The best thing to do is to keep the CMOS clock in universal time (UTC) - * as real UNIX machines always do it. This avoids all headaches about - * daylight saving times and warping kernel clocks. - */ -static inline void warp_clock(void) -{ - if (sys_tz.tz_minuteswest != 0) { - struct timespec adjust; - - persistent_clock_is_local = 1; - adjust.tv_sec = sys_tz.tz_minuteswest * 60; - adjust.tv_nsec = 0; - timekeeping_inject_offset(&adjust); - } -} - -/* * In case for some reason the CMOS clock has not already been running * in UTC, but in some local time: The first time we set the timezone, * we will warp the clock so that it is ticking UTC time instead of @@ -224,7 +190,7 @@ int do_sys_settimeofday64(const struct timespec64 *tv, const struct timezone *tz if (firsttime) { firsttime = 0; if (!tv) - warp_clock(); + timekeeping_warp_clock(); } } if (tv) @@ -441,6 +407,7 @@ time64_t mktime64(const unsigned int year0, const unsigned int mon0, } EXPORT_SYMBOL(mktime64); +#if __BITS_PER_LONG == 32 /** * set_normalized_timespec - set timespec sec and nsec parts and normalize * @@ -501,6 +468,7 @@ struct timespec ns_to_timespec(const s64 nsec) return ts; } EXPORT_SYMBOL(ns_to_timespec); +#endif /** * ns_to_timeval - Convert nanoseconds to timeval @@ -520,7 +488,6 @@ struct timeval ns_to_timeval(const s64 nsec) } EXPORT_SYMBOL(ns_to_timeval); -#if BITS_PER_LONG == 32 /** * set_normalized_timespec - set timespec sec and nsec parts and normalize * @@ -581,7 +548,7 @@ struct timespec64 ns_to_timespec64(const s64 nsec) return ts; } EXPORT_SYMBOL(ns_to_timespec64); -#endif + /** * msecs_to_jiffies: - convert milliseconds to jiffies * @m: time in milliseconds @@ -853,24 +820,6 @@ unsigned long nsecs_to_jiffies(u64 n) EXPORT_SYMBOL_GPL(nsecs_to_jiffies); /* - * Add two timespec values and do a safety check for overflow. - * It's assumed that both values are valid (>= 0) - */ -struct timespec timespec_add_safe(const struct timespec lhs, - const struct timespec rhs) -{ - struct timespec res; - - set_normalized_timespec(&res, lhs.tv_sec + rhs.tv_sec, - lhs.tv_nsec + rhs.tv_nsec); - - if (res.tv_sec < lhs.tv_sec || res.tv_sec < rhs.tv_sec) - res.tv_sec = TIME_T_MAX; - - return res; -} - -/* * Add two timespec64 values and do a safety check for overflow. * It's assumed that both values are valid (>= 0). * And, each timespec64 is in normalized form. |