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debugobjects: Reuse put_objects() on OOM

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Reuse the helper function instead of having a open coded copy.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Zhen Lei <thunder.leizhen@huawei.com>
Link: https://lore.kernel.org/all/20241007164913.326834268@linutronix.de
This commit is contained in:
Thomas Gleixner 2024-10-07 18:49:58 +02:00
parent a2a702383e
commit 49968cf181
1 changed files with 6 additions and 18 deletions
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24
lib/debugobjects.c
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@ -429,7 +429,6 @@ static void free_object(struct debug_obj *obj)
}
}
#ifdef CONFIG_HOTPLUG_CPU
static void put_objects(struct hlist_head *list)
{
struct hlist_node *tmp;
@ -445,6 +444,7 @@ static void put_objects(struct hlist_head *list)
}
}
#ifdef CONFIG_HOTPLUG_CPU
static int object_cpu_offline(unsigned int cpu)
{
/* Remote access is safe as the CPU is dead already */
@ -456,31 +456,19 @@ static int object_cpu_offline(unsigned int cpu)
}
#endif
/*
* We run out of memory. That means we probably have tons of objects
* allocated.
*/
/* Out of memory. Free all objects from hash */
static void debug_objects_oom(void)
{
struct debug_bucket *db = obj_hash;
struct hlist_node *tmp;
HLIST_HEAD(freelist);
struct debug_obj *obj;
unsigned long flags;
int i;
pr_warn("Out of memory. ODEBUG disabled\n");
for (i = 0; i < ODEBUG_HASH_SIZE; i++, db++) {
raw_spin_lock_irqsave(&db->lock, flags);
hlist_move_list(&db->list, &freelist);
raw_spin_unlock_irqrestore(&db->lock, flags);
for (int i = 0; i < ODEBUG_HASH_SIZE; i++, db++) {
scoped_guard(raw_spinlock_irqsave, &db->lock)
hlist_move_list(&db->list, &freelist);
/* Now free them */
hlist_for_each_entry_safe(obj, tmp, &freelist, node) {
hlist_del(&obj->node);
free_object(obj);
}
put_objects(&freelist);
}
}