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Commit 576da126 authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

timer: Split out timer function call 



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: default avatarThomas Gleixner <tglx@linutronix.de>
parent 06f71b92

kernel/timer.c

+36 −36
Original line number Diff line number Diff line
@@ -953,6 +953,41 @@ static int cascade(struct tvec_base *base, struct tvec *tv, int 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)



/**
@@ -996,42 +1031,7 @@ static inline void __run_timers(struct tvec_base *base) 
			detach_timer(timer, 1);



			spin_unlock_irq(&base->lock);

			{

				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();

				}

			}

			call_timer_fn(timer, fn, data);

			spin_lock_irq(&base->lock);

		}

	}