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s390: time: Provide read_boot_clock64() and read_persistent_clock64()

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As part of addressing the "y2038 problem" for in-kernel uses,
this patch converts read_boot_clock() to read_boot_clock64()
and read_persistent_clock() to read_persistent_clock64() using
timespec64.

Rename some instances of 'timespec' to 'timespec64' in time.c and
related references

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: linux390@de.ibm.com
Signed-off-by: Xunlei Pang <pang.xunlei@linaro.org>
[jstultz: Fixed minor style and grammer tweaks
 pointed out by Ingo]
Signed-off-by: John Stultz <john.stultz@linaro.org>
This commit is contained in:
Xunlei Pang
2015-04-09 09:04:41 +08:00
committed by John Stultz
parent 30f3b3f983
commit 689911c734
3 changed files with 12 additions and 10 deletions
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6
arch/s390/kernel/time.c
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@@ -76,7 +76,7 @@ unsigned long long monotonic_clock(void)
}
EXPORT_SYMBOL(monotonic_clock);
void tod_to_timeval(__u64 todval, struct timespec *xt)
void tod_to_timeval(__u64 todval, struct timespec64 *xt)
{
unsigned long long sec;
@@ -181,12 +181,12 @@ static void timing_alert_interrupt(struct ext_code ext_code,
static void etr_reset(void);
static void stp_reset(void);
void read_persistent_clock(struct timespec *ts)
void read_persistent_clock64(struct timespec64 *ts)
{
tod_to_timeval(get_tod_clock() - TOD_UNIX_EPOCH, ts);
}
void read_boot_clock(struct timespec *ts)
void read_boot_clock64(struct timespec64 *ts)
{
tod_to_timeval(sched_clock_base_cc - TOD_UNIX_EPOCH, ts);
}