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[PATCH] remove timer debug field

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Remove timer_list.magic and associated debugging code.

I originally added this when a spinlock was added to timer_list - this meant
that an all-zeroes timer became illegal and init_timer() was required.

That spinlock isn't even there any more, although timer.base must now be
initialised.

I'll keep this debugging code in -mm.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Andrew Morton
2005-10-30 15:02:03 -08:00
committed by Linus Torvalds
parent 89ada67917
commit dfc4f94d2f
3 changed files with 2 additions and 56 deletions
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35
kernel/timer.c
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@@ -91,30 +91,6 @@ static inline void set_running_timer(tvec_base_t *base,
#endif
}
static void check_timer_failed(struct timer_list *timer)
{
static int whine_count;
if (whine_count < 16) {
whine_count++;
printk("Uninitialised timer!\n");
printk("This is just a warning. Your computer is OK\n");
printk("function=0x%p, data=0x%lx\n",
timer->function, timer->data);
dump_stack();
}
/*
* Now fix it up
*/
timer->magic = TIMER_MAGIC;
}
static inline void check_timer(struct timer_list *timer)
{
if (timer->magic != TIMER_MAGIC)
check_timer_failed(timer);
}
static void internal_add_timer(tvec_base_t *base, struct timer_list *timer)
{
unsigned long expires = timer->expires;
@@ -177,7 +153,6 @@ void fastcall init_timer(struct timer_list *timer)
{
timer->entry.next = NULL;
timer->base = &per_cpu(tvec_bases, raw_smp_processor_id()).t_base;
timer->magic = TIMER_MAGIC;
}
EXPORT_SYMBOL(init_timer);
@@ -230,7 +205,6 @@ int __mod_timer(struct timer_list *timer, unsigned long expires)
int ret = 0;
BUG_ON(!timer->function);
check_timer(timer);
base = lock_timer_base(timer, &flags);
@@ -283,9 +257,6 @@ void add_timer_on(struct timer_list *timer, int cpu)
unsigned long flags;
BUG_ON(timer_pending(timer) || !timer->function);
check_timer(timer);
spin_lock_irqsave(&base->t_base.lock, flags);
timer->base = &base->t_base;
internal_add_timer(base, timer);
@@ -316,8 +287,6 @@ int mod_timer(struct timer_list *timer, unsigned long expires)
{
BUG_ON(!timer->function);
check_timer(timer);
/*
* This is a common optimization triggered by the
* networking code - if the timer is re-modified
@@ -348,8 +317,6 @@ int del_timer(struct timer_list *timer)
unsigned long flags;
int ret = 0;
check_timer(timer);
if (timer_pending(timer)) {
base = lock_timer_base(timer, &flags);
if (timer_pending(timer)) {
@@ -412,8 +379,6 @@ out:
*/
int del_timer_sync(struct timer_list *timer)
{
check_timer(timer);
for (;;) {
int ret = try_to_del_timer_sync(timer);
if (ret >= 0)