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timer: Split out timer function call

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The ident level is starting to be annoying. More white space than
actual code. Split out the timer function call into its own function.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2010-03-12 21:10:29 +01:00
parent 06f71b922c
commit 576da126a6
1 changed files with 36 additions and 36 deletions
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72
kernel/timer.c
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@ -953,6 +953,41 @@ static int cascade(struct tvec_base *base, struct tvec *tv, int index)
return index; return index;
} }
static void call_timer_fn(struct timer_list *timer, void (*fn)(unsigned long),
unsigned long data)
{
int preempt_count = preempt_count();
#ifdef CONFIG_LOCKDEP
/*
* It is permissible to free the timer from inside the
* function that is called from it, this we need to take into
* account for lockdep too. To avoid bogus "held lock freed"
* warnings as well as problems when looking into
* timer->lockdep_map, make a copy and use that here.
*/
struct lockdep_map lockdep_map = timer->lockdep_map;
#endif
/*
* Couple the lock chain with the lock chain at
* del_timer_sync() by acquiring the lock_map around the fn()
* call here and in del_timer_sync().
*/
lock_map_acquire(&lockdep_map);
trace_timer_expire_entry(timer);
fn(data);
trace_timer_expire_exit(timer);
lock_map_release(&lockdep_map);
if (preempt_count != preempt_count()) {
printk(KERN_ERR "timer: %pF preempt leak: %08x -> %08x\n",
fn, preempt_count, preempt_count());
BUG();
}
}
#define INDEX(N) ((base->timer_jiffies >> (TVR_BITS + (N) * TVN_BITS)) & TVN_MASK) #define INDEX(N) ((base->timer_jiffies >> (TVR_BITS + (N) * TVN_BITS)) & TVN_MASK)
/** /**
@ -996,42 +1031,7 @@ static inline void __run_timers(struct tvec_base *base)
detach_timer(timer, 1); detach_timer(timer, 1);
spin_unlock_irq(&base->lock); spin_unlock_irq(&base->lock);
{ call_timer_fn(timer, fn, data);
int preempt_count = preempt_count();
#ifdef CONFIG_LOCKDEP
/*
* It is permissible to free the timer from
* inside the function that is called from
* it, this we need to take into account for
* lockdep too. To avoid bogus "held lock
* freed" warnings as well as problems when
* looking into timer->lockdep_map, make a
* copy and use that here.
*/
struct lockdep_map lockdep_map =
timer->lockdep_map;
#endif
/*
* Couple the lock chain with the lock chain at
* del_timer_sync() by acquiring the lock_map
* around the fn() call here and in
* del_timer_sync().
*/
lock_map_acquire(&lockdep_map);
trace_timer_expire_entry(timer);
fn(data);
trace_timer_expire_exit(timer);
lock_map_release(&lockdep_map);
if (preempt_count != preempt_count()) {
printk(KERN_ERR "timer: %pF preempt leak: %08x -> %08x\n",
fn, preempt_count, preempt_count());
BUG();
}
}
spin_lock_irq(&base->lock); spin_lock_irq(&base->lock);
} }
} }