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time: Change k_clock clock_set() to use timespec64

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struct timespec is not y2038 safe on 32 bit machines.  Replace uses of
struct timespec with struct timespec64 in the kernel.

The syscall interfaces themselves will be changed in a separate series.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Cc: y2038@lists.linaro.org
Cc: john.stultz@linaro.org
Cc: arnd@arndb.de
Link: http://lkml.kernel.org/r/1490555058-4603-6-git-send-email-deepa.kernel@gmail.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Deepa Dinamani 2017-03-26 12:04:16 -07:00 committed by Thomas Gleixner
parent d2e3e0ca5d
commit 0fe6afe383
5 changed files with 10 additions and 12 deletions
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2
drivers/char/mmtimer.c
View File

@ -489,7 +489,7 @@ static int sgi_clock_get(clockid_t clockid, struct timespec64 *tp)
return 0;
};
static int sgi_clock_set(const clockid_t clockid, const struct timespec *tp)
static int sgi_clock_set(const clockid_t clockid, const struct timespec64 *tp)
{
u64 nsec;

2
include/linux/posix-timers.h
View File

@ -89,7 +89,7 @@ struct k_itimer {
struct k_clock {
int (*clock_getres) (const clockid_t which_clock, struct timespec64 *tp);
int (*clock_set) (const clockid_t which_clock,
const struct timespec *tp);
const struct timespec64 *tp);
int (*clock_get) (const clockid_t which_clock, struct timespec64 *tp);
int (*clock_adj) (const clockid_t which_clock, struct timex *tx);
int (*timer_create) (struct k_itimer *timer);

5
kernel/time/posix-clock.c
View File

@ -335,9 +335,8 @@ static int pc_clock_getres(clockid_t id, struct timespec64 *ts)
return err;
}
static int pc_clock_settime(clockid_t id, const struct timespec *ts)
static int pc_clock_settime(clockid_t id, const struct timespec64 *ts)
{
struct timespec64 ts64 = timespec_to_timespec64(*ts);
struct posix_clock_desc cd;
int err;
@ -351,7 +350,7 @@ static int pc_clock_settime(clockid_t id, const struct timespec *ts)
}
if (cd.clk->ops.clock_settime)
err = cd.clk->ops.clock_settime(cd.clk, &ts64);
err = cd.clk->ops.clock_settime(cd.clk, ts);
else
err = -EOPNOTSUPP;
out:

2
kernel/time/posix-cpu-timers.c
View File

@ -135,7 +135,7 @@ posix_cpu_clock_getres(const clockid_t which_clock, struct timespec64 *tp)
}
static int
posix_cpu_clock_set(const clockid_t which_clock, const struct timespec *tp)
posix_cpu_clock_set(const clockid_t which_clock, const struct timespec64 *tp)
{
/*
* You can never reset a CPU clock, but we check for other errors

11
kernel/time/posix-timers.c
View File

@ -212,12 +212,9 @@ static int posix_clock_realtime_get(clockid_t which_clock, struct timespec64 *tp
/* Set clock_realtime */
static int posix_clock_realtime_set(const clockid_t which_clock,
const struct timespec *tp)
const struct timespec64 *tp)
{
struct timespec64 tp64;
tp64 = timespec_to_timespec64(*tp);
return do_sys_settimeofday64(&tp64, NULL);
return do_sys_settimeofday64(tp, NULL);
}
static int posix_clock_realtime_adj(const clockid_t which_clock,
@ -1017,6 +1014,7 @@ SYSCALL_DEFINE2(clock_settime, const clockid_t, which_clock,
const struct timespec __user *, tp)
{
struct k_clock *kc = clockid_to_kclock(which_clock);
struct timespec64 new_tp64;
struct timespec new_tp;
if (!kc || !kc->clock_set)
@ -1024,8 +1022,9 @@ SYSCALL_DEFINE2(clock_settime, const clockid_t, which_clock,
if (copy_from_user(&new_tp, tp, sizeof (*tp)))
return -EFAULT;
new_tp64 = timespec_to_timespec64(new_tp);
return kc->clock_set(which_clock, &new_tp);
return kc->clock_set(which_clock, &new_tp64);
}
SYSCALL_DEFINE2(clock_gettime, const clockid_t, which_clock,