diff options
| author | Steve French <sfrench@us.ibm.com> | 2005-11-09 14:33:22 -0800 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2005-11-09 14:33:22 -0800 |
| commit | e82b3aec8d508d2a925a4c766e97f16b7c4dfb1b (patch) | |
| tree | 69d5685ef0c194f651a03e30bff14628b4d45400 /arch/s390/kernel/time.c | |
| parent | ec58ef03284f0bfa50a04982b74c8c2325a0758e (diff) | |
| parent | ad8f76be48d817b48222411ae16a7dfe257bdb24 (diff) | |
Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Diffstat (limited to 'arch/s390/kernel/time.c')
| -rw-r--r-- | arch/s390/kernel/time.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c index 9a1d95894f3d..c36353e8c140 100644 --- a/arch/s390/kernel/time.c +++ b/arch/s390/kernel/time.c @@ -237,6 +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) @@ -257,7 +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)) { |