}
write_unlock(&f->lock);
- mod_timer(&f->secret_timer, now + f->ctl->secret_interval);
+ mod_timer(&f->secret_timer, now + f->secret_interval);
}
void inet_frags_init(struct inet_frags *f)
for (i = 0; i < INETFRAGS_HASHSZ; i++)
INIT_HLIST_HEAD(&f->hash[i]);
- INIT_LIST_HEAD(&f->lru_list);
rwlock_init(&f->lock);
f->rnd = (u32) ((num_physpages ^ (num_physpages>>7)) ^
setup_timer(&f->secret_timer, inet_frag_secret_rebuild,
(unsigned long)f);
- f->secret_timer.expires = jiffies + f->ctl->secret_interval;
+ f->secret_timer.expires = jiffies + f->secret_interval;
add_timer(&f->secret_timer);
}
EXPORT_SYMBOL(inet_frags_init);
{
nf->nqueues = 0;
atomic_set(&nf->mem, 0);
+ INIT_LIST_HEAD(&nf->lru_list);
}
EXPORT_SYMBOL(inet_frags_init_net);
}
EXPORT_SYMBOL(inet_frags_fini);
+void inet_frags_exit_net(struct netns_frags *nf, struct inet_frags *f)
+{
+ nf->low_thresh = 0;
+
+ local_bh_disable();
+ inet_frag_evictor(nf, f);
+ local_bh_enable();
+}
+EXPORT_SYMBOL(inet_frags_exit_net);
+
static inline void fq_unlink(struct inet_frag_queue *fq, struct inet_frags *f)
{
write_lock(&f->lock);
if (del_timer(&fq->timer))
atomic_dec(&fq->refcnt);
- if (!(fq->last_in & COMPLETE)) {
+ if (!(fq->last_in & INET_FRAG_COMPLETE)) {
fq_unlink(fq, f);
atomic_dec(&fq->refcnt);
- fq->last_in |= COMPLETE;
+ fq->last_in |= INET_FRAG_COMPLETE;
}
}
struct sk_buff *fp;
struct netns_frags *nf;
- BUG_TRAP(q->last_in & COMPLETE);
+ BUG_TRAP(q->last_in & INET_FRAG_COMPLETE);
BUG_TRAP(del_timer(&q->timer) == 0);
/* Release all fragment data. */
work = atomic_read(&nf->mem) - nf->low_thresh;
while (work > 0) {
read_lock(&f->lock);
- if (list_empty(&f->lru_list)) {
+ if (list_empty(&nf->lru_list)) {
read_unlock(&f->lock);
break;
}
- q = list_first_entry(&f->lru_list,
+ q = list_first_entry(&nf->lru_list,
struct inet_frag_queue, lru_list);
atomic_inc(&q->refcnt);
read_unlock(&f->lock);
spin_lock(&q->lock);
- if (!(q->last_in & COMPLETE))
+ if (!(q->last_in & INET_FRAG_COMPLETE))
inet_frag_kill(q, f);
spin_unlock(&q->lock);
static struct inet_frag_queue *inet_frag_intern(struct netns_frags *nf,
struct inet_frag_queue *qp_in, struct inet_frags *f,
- unsigned int hash, void *arg)
+ void *arg)
{
struct inet_frag_queue *qp;
#ifdef CONFIG_SMP
struct hlist_node *n;
#endif
+ unsigned int hash;
write_lock(&f->lock);
+ /*
+ * While we stayed w/o the lock other CPU could update
+ * the rnd seed, so we need to re-calculate the hash
+ * chain. Fortunatelly the qp_in can be used to get one.
+ */
+ hash = f->hashfn(qp_in);
#ifdef CONFIG_SMP
/* With SMP race we have to recheck hash table, because
* such entry could be created on other cpu, while we
if (qp->net == nf && f->match(qp, arg)) {
atomic_inc(&qp->refcnt);
write_unlock(&f->lock);
- qp_in->last_in |= COMPLETE;
+ qp_in->last_in |= INET_FRAG_COMPLETE;
inet_frag_put(qp_in, f);
return qp;
}
atomic_inc(&qp->refcnt);
hlist_add_head(&qp->list, &f->hash[hash]);
- list_add_tail(&qp->lru_list, &f->lru_list);
+ list_add_tail(&qp->lru_list, &nf->lru_list);
nf->nqueues++;
write_unlock(&f->lock);
return qp;
}
static struct inet_frag_queue *inet_frag_create(struct netns_frags *nf,
- struct inet_frags *f, void *arg, unsigned int hash)
+ struct inet_frags *f, void *arg)
{
struct inet_frag_queue *q;
if (q == NULL)
return NULL;
- return inet_frag_intern(nf, q, f, hash, arg);
+ return inet_frag_intern(nf, q, f, arg);
}
struct inet_frag_queue *inet_frag_find(struct netns_frags *nf,
struct inet_frag_queue *q;
struct hlist_node *n;
- read_lock(&f->lock);
hlist_for_each_entry(q, n, &f->hash[hash], list) {
if (q->net == nf && f->match(q, key)) {
atomic_inc(&q->refcnt);
}
read_unlock(&f->lock);
- return inet_frag_create(nf, f, key, hash);
+ return inet_frag_create(nf, f, key);
}
EXPORT_SYMBOL(inet_frag_find);