On Fri, 1 Dec 2023 19:08:29 +0000 Catalin Marinas <catalin.marinas@xxxxxxx>
> @@ -1472,14 +1474,27 @@ static void scan_object(struct kmemleak_object *object)
> /* already freed object */
> goto out;
>
> - obj_ptr = object->flags & OBJECT_PHYS ?
> - __va((phys_addr_t)object->pointer) :
> - (void *)object->pointer;
> + if (object->flags & OBJECT_PERCPU) {
> + unsigned int cpu;
>
> - if (hlist_empty(&object->area_list) ||
> + for_each_possible_cpu(cpu) {
> + void *start = per_cpu_ptr((void __percpu *)object->pointer, cpu);
> + void *end = start + object->size;
> +
> + scan_block(start, end, object);
> +
> + raw_spin_unlock_irqrestore(&object->lock, flags);
> + cond_resched();
> + raw_spin_lock_irqsave(&object->lock, flags);
Nit, spin_lock/unlock can be collapsed into need_resched().
if (need_resched()) {
raw_spin_unlock_irqrestore(&object->lock, flags);
cond_resched();
raw_spin_lock_irqsave(&object->lock, flags);
}
> + if (!(object->flags & OBJECT_ALLOCATED))
> + break;
> + }
> + } else if (hlist_empty(&object->area_list) ||
