time: Change nanosleep to safe __kernel_* types

Change over clock_nanosleep syscalls to use y2038 safe
__kernel_timespec times. This will enable changing over
of these syscalls to use new y2038 safe syscalls when
the architectures define the CONFIG_64BIT_TIME.

Note that nanosleep syscall is deprecated and does not have a
plan for making it y2038 safe. But, the syscall should work as
before on 64 bit machines and on 32 bit machines, the syscall
works correctly until y2038 as before using the existing compat
syscall version. There is no new syscall for supporting 64 bit
time_t on 32 bit architectures.

Cc: linux-api@vger.kernel.org
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 4 insertions, 3 deletions

diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 40bb40d1741b..c9a2a2601852 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -536,7 +536,8 @@ asmlinkage long sys_set_robust_list(struct robust_list_head __user *head,
                                     size_t len);
 
 /* kernel/hrtimer.c */
-asmlinkage long sys_nanosleep(struct timespec __user *rqtp, struct timespec __user *rmtp);
+asmlinkage long sys_nanosleep(struct __kernel_timespec __user *rqtp,
+                              struct __kernel_timespec __user *rmtp);
 
 /* kernel/itimer.c */
 asmlinkage long sys_getitimer(int which, struct itimerval __user *value);
@@ -573,8 +574,8 @@ asmlinkage long sys_clock_gettime(clockid_t which_clock,
 asmlinkage long sys_clock_getres(clockid_t which_clock,
                                 struct __kernel_timespec __user *tp);
 asmlinkage long sys_clock_nanosleep(clockid_t which_clock, int flags,
-                                const struct timespec __user *rqtp,
-                                struct timespec __user *rmtp);
+                                const struct __kernel_timespec __user *rqtp,
+                                struct __kernel_timespec __user *rmtp);
 
 /* kernel/printk.c */
 asmlinkage long sys_syslog(int type, char __user *buf, int len);