X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=arch%2Fs390%2Fkernel%2Ftime.c;h=2a6c6efb68653db8880853d09648d86f21af60b9;hb=705af309505681f197f81618440954d10f120dc0;hp=c36353e8c1404b22ae5dfbd8f0b0bd8f1a8214b8;hpb=dad2ad82c5f058367df79de022bd12d36afcd065;p=linux-2.6-omap-h63xx.git

diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index c36353e8c14..2a6c6efb686 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -61,9 +61,18 @@ extern unsigned long wall_jiffies;
  */
 unsigned long long sched_clock(void)
 {
-	return ((get_clock() - jiffies_timer_cc) * 1000) >> 12;
+	return ((get_clock() - jiffies_timer_cc) * 125) >> 9;
 }
 
+/*
+ * Monotonic_clock - returns # of nanoseconds passed since time_init()
+ */
+unsigned long long monotonic_clock(void)
+{
+	return sched_clock();
+}
+EXPORT_SYMBOL(monotonic_clock);
+
 void tod_to_timeval(__u64 todval, struct timespec *xtime)
 {
 	unsigned long long sec;
@@ -214,7 +223,7 @@ void account_ticks(struct pt_regs *regs)
 #endif
 
 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
-	account_user_vtime(current);
+	account_tick_vtime(current);
 #else
 	while (ticks--)
 		update_process_times(user_mode(regs));
@@ -240,18 +249,19 @@ static inline void stop_hz_timer(void)
 	unsigned long flags;
 	unsigned long seq, next;
 	__u64 timer, todval;
+	int cpu = smp_processor_id();
 
 	if (sysctl_hz_timer != 0)
 		return;
 
-	cpu_set(smp_processor_id(), nohz_cpu_mask);
+	cpu_set(cpu, nohz_cpu_mask);
 
 	/*
 	 * Leave the clock comparator set up for the next timer
 	 * tick if either rcu or a softirq is pending.
 	 */
-	if (rcu_pending(smp_processor_id()) || local_softirq_pending()) {
-		cpu_clear(smp_processor_id(), nohz_cpu_mask);
+	if (rcu_needs_cpu(cpu) || local_softirq_pending()) {
+		cpu_clear(cpu, nohz_cpu_mask);
 		return;
 	}
 
@@ -262,7 +272,7 @@ static inline void stop_hz_timer(void)
 	next = next_timer_interrupt();
 	do {
 		seq = read_seqbegin_irqsave(&xtime_lock, flags);
-		timer = (__u64)(next - jiffies) + jiffies_64;
+		timer = ((__u64) next) - ((__u64) jiffies) + jiffies_64;
 	} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
 	todval = -1ULL;
 	/* Be careful about overflows. */
@@ -282,7 +292,7 @@ static inline void start_hz_timer(void)
 {
 	if (!cpu_isset(smp_processor_id(), nohz_cpu_mask))
 		return;
-	account_ticks(__KSTK_PTREGS(current));
+	account_ticks(task_pt_regs(current));
 	cpu_clear(smp_processor_id(), nohz_cpu_mask);
 }