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time: Change posix clocks ops interfaces to use timespec64

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struct timespec is not y2038 safe on 32 bit machines.

The posix clocks apis use struct timespec directly and through struct
itimerspec.

Replace the posix clock interfaces to use struct timespec64 and struct
itimerspec64 instead.  Also fix up their implementations accordingly.

Note that the clock_getres() interface has also been changed to use
timespec64 even though this particular interface is not affected by the
y2038 problem. This helps verification for internal kernel code for y2038
readiness by getting rid of time_t/ timeval/ timespec.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Cc: arnd@arndb.de
Cc: y2038@lists.linaro.org
Cc: netdev@vger.kernel.org
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: john.stultz@linaro.org
Link: http://lkml.kernel.org/r/1490555058-4603-3-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 12:04:13 -07:00
committed by Thomas Gleixner
parent 2ac00f17b2
commit d340266e19
3 changed files with 36 additions and 26 deletions
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18
drivers/ptp/ptp_clock.c
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@@ -97,30 +97,26 @@ static s32 scaled_ppm_to_ppb(long ppm)
/* posix clock implementation */
static int ptp_clock_getres(struct posix_clock *pc, struct timespec *tp)
static int ptp_clock_getres(struct posix_clock *pc, struct timespec64 *tp)
{
tp->tv_sec = 0;
tp->tv_nsec = 1;
return 0;
}
static int ptp_clock_settime(struct posix_clock *pc, const struct timespec *tp)
static int ptp_clock_settime(struct posix_clock *pc, const struct timespec64 *tp)
{
struct ptp_clock *ptp = container_of(pc, struct ptp_clock, clock);
struct timespec64 ts = timespec_to_timespec64(*tp);
return ptp->info->settime64(ptp->info, &ts);
return ptp->info->settime64(ptp->info, tp);
}
static int ptp_clock_gettime(struct posix_clock *pc, struct timespec *tp)
static int ptp_clock_gettime(struct posix_clock *pc, struct timespec64 *tp)
{
struct ptp_clock *ptp = container_of(pc, struct ptp_clock, clock);
struct timespec64 ts;
int err;
err = ptp->info->gettime64(ptp->info, &ts);
if (!err)
*tp = timespec64_to_timespec(ts);
err = ptp->info->gettime64(ptp->info, tp);
return err;
}
@@ -133,7 +129,7 @@ static int ptp_clock_adjtime(struct posix_clock *pc, struct timex *tx)
ops = ptp->info;
if (tx->modes & ADJ_SETOFFSET) {
struct timespec ts;
struct timespec64 ts;
ktime_t kt;
s64 delta;
@@ -146,7 +142,7 @@ static int ptp_clock_adjtime(struct posix_clock *pc, struct timex *tx)
if ((unsigned long) ts.tv_nsec >= NSEC_PER_SEC)
return -EINVAL;
kt = timespec_to_ktime(ts);
kt = timespec64_to_ktime(ts);
delta = ktime_to_ns(kt);
err = ops->adjtime(ops, delta);
} else if (tx->modes & ADJ_FREQUENCY) {