Merge tag 'v3.10.90' into update

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / kernel / time / timer_list.c

diff --git a/kernel/time/timer_list.c b/kernel/time/timer_list.c
index 3bdf28323012639c9cc60b43f3add4ff257cbe91..61ed862cdd376222dedfa317301f3d6c3dbd3404 100644 (file)
--- a/kernel/time/timer_list.c
+++ b/kernel/time/timer_list.c
@@ -265,10 +265,9 @@ static inline void timer_list_header(struct seq_file *m, u64 now)
 static int timer_list_show(struct seq_file *m, void *v)
 {
        struct timer_list_iter *iter = v;
-       u64 now = ktime_to_ns(ktime_get());
 
        if (iter->cpu == -1 && !iter->second_pass)
-               timer_list_header(m, now);
+               timer_list_header(m, iter->now);
        else if (!iter->second_pass)
                print_cpu(m, iter->cpu, iter->now);
 #ifdef CONFIG_GENERIC_CLOCKEVENTS
@@ -298,33 +297,41 @@ void sysrq_timer_list_show(void)
        return;
 }
 
-static void *timer_list_start(struct seq_file *file, loff_t *offset)
+static void *move_iter(struct timer_list_iter *iter, loff_t offset)
 {
-       struct timer_list_iter *iter = file->private;
-
-       if (!*offset) {
-               iter->cpu = -1;
-               iter->now = ktime_to_ns(ktime_get());
-       } else if (iter->cpu >= nr_cpu_ids) {
+       for (; offset; offset--) {
+               iter->cpu = cpumask_next(iter->cpu, cpu_online_mask);
+               if (iter->cpu >= nr_cpu_ids) {
 #ifdef CONFIG_GENERIC_CLOCKEVENTS
-               if (!iter->second_pass) {
-                       iter->cpu = -1;
-                       iter->second_pass = true;
-               } else
-                       return NULL;
+                       if (!iter->second_pass) {
+                               iter->cpu = -1;
+                               iter->second_pass = true;
+                       } else
+                               return NULL;
 #else
-               return NULL;
+                       return NULL;
 #endif
+               }
        }
        return iter;
 }
 
+static void *timer_list_start(struct seq_file *file, loff_t *offset)
+{
+       struct timer_list_iter *iter = file->private;
+
+       if (!*offset)
+               iter->now = ktime_to_ns(ktime_get());
+       iter->cpu = -1;
+       iter->second_pass = false;
+       return move_iter(iter, *offset);
+}
+
 static void *timer_list_next(struct seq_file *file, void *v, loff_t *offset)
 {
        struct timer_list_iter *iter = file->private;
-       iter->cpu = cpumask_next(iter->cpu, cpu_online_mask);
        ++*offset;
-       return timer_list_start(file, offset);
+       return move_iter(iter, 1);
 }
 
 static void timer_list_stop(struct seq_file *seq, void *v)