diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/inet_connection_sock.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c index a9d2e6308910..7ced569778ab 100644 --- a/net/ipv4/inet_connection_sock.c +++ b/net/ipv4/inet_connection_sock.c @@ -911,6 +911,39 @@ int inet_rtx_syn_ack(const struct sock *parent, struct request_sock *req) } EXPORT_SYMBOL(inet_rtx_syn_ack); +static struct request_sock * +reqsk_alloc_noprof(const struct request_sock_ops *ops, struct sock *sk_listener, + bool attach_listener) +{ + struct request_sock *req; + + req = kmem_cache_alloc_noprof(ops->slab, GFP_ATOMIC | __GFP_NOWARN); + if (!req) + return NULL; + req->rsk_listener = NULL; + if (attach_listener) { + if (unlikely(!refcount_inc_not_zero(&sk_listener->sk_refcnt))) { + kmem_cache_free(ops->slab, req); + return NULL; + } + req->rsk_listener = sk_listener; + } + req->rsk_ops = ops; + req_to_sk(req)->sk_prot = sk_listener->sk_prot; + sk_node_init(&req_to_sk(req)->sk_node); + sk_tx_queue_clear(req_to_sk(req)); + req->saved_syn = NULL; + req->syncookie = 0; + req->timeout = 0; + req->num_timeout = 0; + req->num_retrans = 0; + req->sk = NULL; + refcount_set(&req->rsk_refcnt, 0); + + return req; +} +#define reqsk_alloc(...) alloc_hooks(reqsk_alloc_noprof(__VA_ARGS__)) + struct request_sock *inet_reqsk_alloc(const struct request_sock_ops *ops, struct sock *sk_listener, bool attach_listener) |