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authorThomas Gleixner <tglx@linutronix.de>2014-07-17 01:05:16 +0400
committerJohn Stultz <john.stultz@linaro.org>2014-07-24 02:01:53 +0400
commitd28ede83791defee9a81e558540699dc46dbbe13 (patch)
tree40df9738db287097241fe25493df982ee33b046f /arch/s390
parent6d3aadf3e180e09dbefab16478c6876b584ce16e (diff)
downloadlinux-d28ede83791defee9a81e558540699dc46dbbe13.tar.xz
timekeeping: Create struct tk_read_base and use it in struct timekeeper
The members of the new struct are the required ones for the new NMI safe accessor to clcok monotonic. In order to reuse the existing timekeeping code and to make the update of the fast NMI safe timekeepers a simple memcpy use the struct for the timekeeper as well and convert all users. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Signed-off-by: John Stultz <john.stultz@linaro.org>
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/kernel/time.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 97950f392613..4cef607f3711 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -214,26 +214,26 @@ void update_vsyscall(struct timekeeper *tk)
{
u64 nsecps;
- if (tk->clock != &clocksource_tod)
+ if (tk->tkr.clock != &clocksource_tod)
return;
/* Make userspace gettimeofday spin until we're done. */
++vdso_data->tb_update_count;
smp_wmb();
- vdso_data->xtime_tod_stamp = tk->cycle_last;
+ vdso_data->xtime_tod_stamp = tk->tkr.cycle_last;
vdso_data->xtime_clock_sec = tk->xtime_sec;
- vdso_data->xtime_clock_nsec = tk->xtime_nsec;
+ vdso_data->xtime_clock_nsec = tk->tkr.xtime_nsec;
vdso_data->wtom_clock_sec =
tk->xtime_sec + tk->wall_to_monotonic.tv_sec;
- vdso_data->wtom_clock_nsec = tk->xtime_nsec +
- + ((u64) tk->wall_to_monotonic.tv_nsec << tk->shift);
- nsecps = (u64) NSEC_PER_SEC << tk->shift;
+ vdso_data->wtom_clock_nsec = tk->tkr.xtime_nsec +
+ + ((u64) tk->wall_to_monotonic.tv_nsec << tk->tkr.shift);
+ nsecps = (u64) NSEC_PER_SEC << tk->tkr.shift;
while (vdso_data->wtom_clock_nsec >= nsecps) {
vdso_data->wtom_clock_nsec -= nsecps;
vdso_data->wtom_clock_sec++;
}
- vdso_data->tk_mult = tk->mult;
- vdso_data->tk_shift = tk->shift;
+ vdso_data->tk_mult = tk->tkr.mult;
+ vdso_data->tk_shift = tk->tkr.shift;
smp_wmb();
++vdso_data->tb_update_count;
}