diff options
Diffstat (limited to 'kernel/time/time.c')
| -rw-r--r-- | kernel/time/time.c | 32 |
1 files changed, 15 insertions, 17 deletions
diff --git a/kernel/time/time.c b/kernel/time/time.c index 5c54ca632d08..58e312e7380f 100644 --- a/kernel/time/time.c +++ b/kernel/time/time.c @@ -59,9 +59,9 @@ EXPORT_SYMBOL(sys_tz); * why not move it into the appropriate arch directory (for those * architectures that need it). */ -SYSCALL_DEFINE1(time, time_t __user *, tloc) +SYSCALL_DEFINE1(time, __kernel_old_time_t __user *, tloc) { - time_t i = (time_t)ktime_get_real_seconds(); + __kernel_old_time_t i = (__kernel_old_time_t)ktime_get_real_seconds(); if (tloc) { if (put_user(i,tloc)) @@ -78,7 +78,7 @@ SYSCALL_DEFINE1(time, time_t __user *, tloc) * architectures that need it). */ -SYSCALL_DEFINE1(stime, time_t __user *, tptr) +SYSCALL_DEFINE1(stime, __kernel_old_time_t __user *, tptr) { struct timespec64 tv; int err; @@ -137,7 +137,7 @@ SYSCALL_DEFINE1(stime32, old_time32_t __user *, tptr) #endif /* __ARCH_WANT_SYS_TIME32 */ #endif -SYSCALL_DEFINE2(gettimeofday, struct timeval __user *, tv, +SYSCALL_DEFINE2(gettimeofday, struct __kernel_old_timeval __user *, tv, struct timezone __user *, tz) { if (likely(tv != NULL)) { @@ -196,22 +196,21 @@ int do_sys_settimeofday64(const struct timespec64 *tv, const struct timezone *tz return 0; } -SYSCALL_DEFINE2(settimeofday, struct timeval __user *, tv, +SYSCALL_DEFINE2(settimeofday, struct __kernel_old_timeval __user *, tv, struct timezone __user *, tz) { struct timespec64 new_ts; - struct timeval user_tv; struct timezone new_tz; if (tv) { - if (copy_from_user(&user_tv, tv, sizeof(*tv))) + if (get_user(new_ts.tv_sec, &tv->tv_sec) || + get_user(new_ts.tv_nsec, &tv->tv_usec)) return -EFAULT; - if (!timeval_valid(&user_tv)) + if (new_ts.tv_nsec > USEC_PER_SEC || new_ts.tv_nsec < 0) return -EINVAL; - new_ts.tv_sec = user_tv.tv_sec; - new_ts.tv_nsec = user_tv.tv_usec * NSEC_PER_USEC; + new_ts.tv_nsec *= NSEC_PER_USEC; } if (tz) { if (copy_from_user(&new_tz, tz, sizeof(*tz))) @@ -245,18 +244,17 @@ COMPAT_SYSCALL_DEFINE2(settimeofday, struct old_timeval32 __user *, tv, struct timezone __user *, tz) { struct timespec64 new_ts; - struct timeval user_tv; struct timezone new_tz; if (tv) { - if (compat_get_timeval(&user_tv, tv)) + if (get_user(new_ts.tv_sec, &tv->tv_sec) || + get_user(new_ts.tv_nsec, &tv->tv_usec)) return -EFAULT; - if (!timeval_valid(&user_tv)) + if (new_ts.tv_nsec > USEC_PER_SEC || new_ts.tv_nsec < 0) return -EINVAL; - new_ts.tv_sec = user_tv.tv_sec; - new_ts.tv_nsec = user_tv.tv_usec * NSEC_PER_USEC; + new_ts.tv_nsec *= NSEC_PER_USEC; } if (tz) { if (copy_from_user(&new_tz, tz, sizeof(*tz))) @@ -267,7 +265,7 @@ COMPAT_SYSCALL_DEFINE2(settimeofday, struct old_timeval32 __user *, tv, } #endif -#if !defined(CONFIG_64BIT_TIME) || defined(CONFIG_64BIT) +#ifdef CONFIG_64BIT SYSCALL_DEFINE1(adjtimex, struct __kernel_timex __user *, txc_p) { struct __kernel_timex txc; /* Local copy of parameter */ @@ -881,7 +879,7 @@ int get_timespec64(struct timespec64 *ts, ts->tv_sec = kts.tv_sec; /* Zero out the padding for 32 bit systems or in compat mode */ - if (IS_ENABLED(CONFIG_64BIT_TIME) && in_compat_syscall()) + if (in_compat_syscall()) kts.tv_nsec &= 0xFFFFFFFFUL; ts->tv_nsec = kts.tv_nsec; |