void quarantine_put(struct kasan_free_meta *info, struct kmem_cache *cache)
{
unsigned long flags;
struct qlist_head *q;
struct qlist_head temp = QLIST_INIT;
local_irq_save(flags);
q = this_cpu_ptr(&cpu_quarantine);
qlist_put(q, &info->quarantine_link, cache->size);
if (unlikely(q->bytes > QUARANTINE_PERCPU_SIZE))
qlist_move_all(q, &temp);
local_irq_restore(flags);
if (unlikely(!qlist_empty(&temp))) {
spin_lock_irqsave(&quarantine_lock, flags);
qlist_move_all(&temp, &global_quarantine);
spin_unlock_irqrestore(&quarantine_lock, flags);
}
}
static void qlist_move(struct qlist_head *from, struct qlist_node *last,
struct qlist_head *to, size_t size)
{
if (unlikely(last == from->tail)) {
qlist_move_all(from, to);
return;
}
if (qlist_empty(to))
to->head = from->head;
else
to->tail->next = from->head;
to->tail = last;
from->head = last->next;
last->next = NULL;
from->bytes -= size;
to->bytes += size;
}
static void qlist_move(struct qlist *from, void **last, struct qlist *to,
size_t size)
{
if (unlikely(last == from->tail)) {
qlist_move_all(from, to);
return;
}
if (qlist_empty(to))
to->head = from->head;
else
*to->tail = from->head;
to->tail = last;
from->head = *last;
*last = NULL;
from->bytes -= size;
to->bytes += size;
}
