Merge branch 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[~shefty/rdma-dev.git] / kernel / timer.c
index beb97fd11ac23646d548b9a87d726540f6f8eff5..43ca9936f2d06a2cba572f1c877406f9281e68a3 100644 (file)
@@ -37,7 +37,7 @@
 #include <linux/delay.h>
 #include <linux/tick.h>
 #include <linux/kallsyms.h>
-#include <linux/perf_event.h>
+#include <linux/irq_work.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
 
@@ -1230,6 +1230,12 @@ unsigned long get_next_timer_interrupt(unsigned long now)
        struct tvec_base *base = __this_cpu_read(tvec_bases);
        unsigned long expires;
 
+       /*
+        * Pretend that there is no timer pending if the cpu is offline.
+        * Possible pending timers will be migrated later to an active cpu.
+        */
+       if (cpu_is_offline(smp_processor_id()))
+               return now + NEXT_TIMER_MAX_DELTA;
        spin_lock(&base->lock);
        if (time_before_eq(base->next_timer, base->timer_jiffies))
                base->next_timer = __next_timer_interrupt(base);
@@ -1257,7 +1263,10 @@ void update_process_times(int user_tick)
        run_local_timers();
        rcu_check_callbacks(cpu, user_tick);
        printk_tick();
-       perf_event_do_pending();
+#ifdef CONFIG_IRQ_WORK
+       if (in_irq())
+               irq_work_run();
+#endif
        scheduler_tick();
        run_posix_cpu_timers(p);
 }
@@ -1294,7 +1303,7 @@ void do_timer(unsigned long ticks)
 {
        jiffies_64 += ticks;
        update_wall_time();
-       calc_global_load();
+       calc_global_load(ticks);
 }
 
 #ifdef __ARCH_WANT_SYS_ALARM