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time: Use ktime_get_real_seconds() in time syscall 

Both get_seconds() and do_gettimeofday() are deprecated. Change the time()
implementation to use the replacement function instead.

Obviously the system call will still overflow in 2038, but this gets us
closer to removing the old helper functions.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>
Cc: y2038@lists.linaro.org
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Deepa Dinamani <deepa.kernel@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Link: https://lkml.kernel.org/r/20180618140811.2998503-2-arnd@arndb.de
This commit is contained in:
Arnd Bergmann 2018-06-18 16:08:00 +02:00 committed by Thomas Gleixner
parent 9ffc59d572
commit f5a89295e2
1 changed files with 2 additions and 4 deletions
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6
kernel/time/time.c
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@ -63,7 +63,7 @@ EXPORT_SYMBOL(sys_tz);
*/
SYSCALL_DEFINE1(time, time_t __user *, tloc)
{
time_t i = get_seconds();
time_t i = (time_t)ktime_get_real_seconds();
if (tloc) {
if (put_user(i,tloc))
@ -106,11 +106,9 @@ SYSCALL_DEFINE1(stime, time_t __user *, tptr)
/* compat_time_t is a 32 bit "long" and needs to get converted. */
COMPAT_SYSCALL_DEFINE1(time, compat_time_t __user *, tloc)
{
struct timeval tv;
compat_time_t i;
do_gettimeofday(&tv);
i = tv.tv_sec;
i = (compat_time_t)ktime_get_real_seconds();
if (tloc) {
if (put_user(i,tloc))