writeback: pay attention to wbc->nr_to_write in write_cache_pages

[safe/jmp/linux-2.6] / kernel / timer.c

diff --git a/kernel/timer.c b/kernel/timer.c
index e3b8c69..ee305c8 100644 (file)
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -752,11 +752,15 @@ unsigned long apply_slack(struct timer_list *timer, unsigned long expires)
 
        expires_limit = expires;
 
-       if (timer->slack > -1)
+       if (timer->slack >= 0) {
                expires_limit = expires + timer->slack;
-       else if (time_after(expires, jiffies)) /* auto slack: use 0.4% */
-               expires_limit = expires + (expires - jiffies)/256;
+       } else {
+               unsigned long now = jiffies;
 
+               /* No slack, if already expired else auto slack 0.4% */
+               if (time_after(expires, now))
+                       expires_limit = expires + (expires - now)/256;
+       }
        mask = expires ^ expires_limit;
        if (mask == 0)
                return expires;
@@ -1713,7 +1717,7 @@ void __init init_timers(void)
 
        init_timer_stats();
 
-       BUG_ON(err == NOTIFY_BAD);
+       BUG_ON(err != NOTIFY_OK);
        register_cpu_notifier(&timers_nb);
        open_softirq(TIMER_SOFTIRQ, run_timer_softirq);
 }