diff options
Diffstat (limited to 'net/ipv4/inet_fragment.c')
| -rw-r--r-- | net/ipv4/inet_fragment.c | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c index b531f803cda..6ba98ebbed9 100644 --- a/net/ipv4/inet_fragment.c +++ b/net/ipv4/inet_fragment.c @@ -226,8 +226,8 @@ static struct inet_frag_queue *inet_frag_alloc(struct inet_frags *f, void *arg) return q; } -struct inet_frag_queue *inet_frag_create(struct inet_frags *f, void *arg, - unsigned int hash) +static struct inet_frag_queue *inet_frag_create(struct inet_frags *f, + void *arg, unsigned int hash) { struct inet_frag_queue *q; @@ -237,4 +237,23 @@ struct inet_frag_queue *inet_frag_create(struct inet_frags *f, void *arg, return inet_frag_intern(q, f, hash); } -EXPORT_SYMBOL(inet_frag_create); + +struct inet_frag_queue *inet_frag_find(struct inet_frags *f, void *key, + unsigned int hash) +{ + struct inet_frag_queue *q; + struct hlist_node *n; + + read_lock(&f->lock); + hlist_for_each_entry(q, n, &f->hash[hash], list) { + if (f->match(q, key)) { + atomic_inc(&q->refcnt); + read_unlock(&f->lock); + return q; + } + } + read_unlock(&f->lock); + + return inet_frag_create(f, key, hash); +} +EXPORT_SYMBOL(inet_frag_find); |