diff options
Diffstat (limited to 'arch/s390/kernel/time.c')
| -rw-r--r-- | arch/s390/kernel/time.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c index 2fd75da15495..c36353e8c140 100644 --- a/arch/s390/kernel/time.c +++ b/arch/s390/kernel/time.c @@ -49,10 +49,6 @@ #define TICK_SIZE tick -u64 jiffies_64 = INITIAL_JIFFIES; - -EXPORT_SYMBOL(jiffies_64); - static ext_int_info_t ext_int_info_cc; static u64 init_timer_cc; static u64 jiffies_timer_cc; @@ -241,6 +237,8 @@ int sysctl_hz_timer = 1; */ static inline void stop_hz_timer(void) { + unsigned long flags; + unsigned long seq, next; __u64 timer, todval; if (sysctl_hz_timer != 0) @@ -261,7 +259,11 @@ static inline void stop_hz_timer(void) * This cpu is going really idle. Set up the clock comparator * for the next event. */ - timer = (__u64) (next_timer_interrupt() - jiffies) + jiffies_64; + next = next_timer_interrupt(); + do { + seq = read_seqbegin_irqsave(&xtime_lock, flags); + timer = (__u64)(next - jiffies) + jiffies_64; + } while (read_seqretry_irqrestore(&xtime_lock, seq, flags)); todval = -1ULL; /* Be careful about overflows. */ if (timer < (-1ULL / CLK_TICKS_PER_JIFFY)) { |