struct timex is not y2038 safe. Switch all the syscall apis to use y2038 safe __kernel_timex.
Note that sys_adjtimex() does not have a y2038 safe solution. The api is meant to be deprecated on 32 bit machines after y2038.
Signed-off-by: Deepa Dinamani deepa.kernel@gmail.com Cc: linux-api@vger.kernel.org --- include/linux/syscalls.h | 5 ++--- kernel/time/posix-timers.c | 10 +--------- kernel/time/time.c | 9 +++++++-- 3 files changed, 10 insertions(+), 14 deletions(-)
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 3ee3b3f1302f..54688c7b4dae 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -54,7 +54,6 @@ struct __sysctl_args; struct sysinfo; struct timespec; struct timeval; -struct timex; struct timezone; struct tms; struct utimbuf; @@ -677,7 +676,7 @@ asmlinkage long sys_gettimeofday(struct timeval __user *tv, struct timezone __user *tz); asmlinkage long sys_settimeofday(struct timeval __user *tv, struct timezone __user *tz); -asmlinkage long sys_adjtimex(struct timex __user *txc_p); +asmlinkage long sys_adjtimex(struct __kernel_timex __user *txc_p);
/* kernel/timer.c */ asmlinkage long sys_getpid(void); @@ -846,7 +845,7 @@ asmlinkage long sys_open_by_handle_at(int mountdirfd, struct file_handle __user *handle, int flags); asmlinkage long sys_clock_adjtime(clockid_t which_clock, - struct timex __user *tx); + struct __kernel_timex __user *tx); asmlinkage long sys_syncfs(int fd); asmlinkage long sys_setns(int fd, int nstype); asmlinkage long sys_sendmmsg(int fd, struct mmsghdr __user *msg, diff --git a/kernel/time/posix-timers.c b/kernel/time/posix-timers.c index 640e30792413..8ae5d73ecee3 100644 --- a/kernel/time/posix-timers.c +++ b/kernel/time/posix-timers.c @@ -1075,7 +1075,7 @@ SYSCALL_DEFINE2(clock_gettime, const clockid_t, which_clock, }
SYSCALL_DEFINE2(clock_adjtime, const clockid_t, which_clock, - struct timex __user *, utx) + struct __kernel_timex __user *, utx) { const struct k_clock *kc = clockid_to_kclock(which_clock); struct __kernel_timex ktx; @@ -1150,10 +1150,6 @@ COMPAT_SYSCALL_DEFINE2(clock_gettime, clockid_t, which_clock, return err; }
-#endif - -#ifdef CONFIG_COMPAT - COMPAT_SYSCALL_DEFINE2(clock_adjtime, clockid_t, which_clock, struct compat_timex __user *, utp) { @@ -1178,10 +1174,6 @@ COMPAT_SYSCALL_DEFINE2(clock_adjtime, clockid_t, which_clock, return err; }
-#endif - -#ifdef CONFIG_COMPAT_32BIT_TIME - COMPAT_SYSCALL_DEFINE2(clock_getres, clockid_t, which_clock, struct compat_timespec __user *, tp) { diff --git a/kernel/time/time.c b/kernel/time/time.c index 2c5afb008b14..a374fdbb368b 100644 --- a/kernel/time/time.c +++ b/kernel/time/time.c @@ -263,7 +263,10 @@ COMPAT_SYSCALL_DEFINE2(settimeofday, struct compat_timeval __user *, tv, } #endif
-SYSCALL_DEFINE1(adjtimex, struct timex __user *, txc_p) + +#if !defined(CONFIG_64BIT_TIME) || defined(CONFIG_64BIT) + +SYSCALL_DEFINE1(adjtimex, struct __kernel_timex __user *, txc_p) { struct __kernel_timex txc; /* Local copy of parameter */ int ret; @@ -278,7 +281,9 @@ SYSCALL_DEFINE1(adjtimex, struct timex __user *, txc_p) return copy_to_user(txc_p, &txc, sizeof(struct __kernel_timex)) ? -EFAULT : ret; }
-#ifdef CONFIG_COMPAT +#endif + +#ifdef CONFIG_COMPAT_32BIT_TIME
COMPAT_SYSCALL_DEFINE1(adjtimex, struct compat_timex __user *, utp) {