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y2038: uapi: change __kernel_time_t to __kernel_old_time_t

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This is mainly a patch for clarification, and to let us remove
the time_t definition from the kernel to prevent new users from
creeping in that might not be y2038-safe.

All remaining uses of 'time_t' or '__kernel_time_t' are part of
the user API that cannot be changed by that either have a
replacement or that do not suffer from the y2038 overflow.

Acked-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann
2019-11-05 11:10:01 +01:00
parent 1bf883c1a9
commit 2a785996cc
12 changed files with 27 additions and 27 deletions
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6
kernel/time/time.c
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@@ -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;