diff options
Diffstat (limited to 'net/packet')
| -rw-r--r-- | net/packet/af_packet.c | 10 | ||||
| -rw-r--r-- | net/packet/diag.c | 3 |
2 files changed, 9 insertions, 4 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 91c9dc0108..18f616f487 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -2318,7 +2318,7 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev, } if (po->tp_version <= TPACKET_V2) { if (macoff + snaplen > po->rx_ring.frame_size) { - if (po->copy_thresh && + if (READ_ONCE(po->copy_thresh) && atomic_read(&sk->sk_rmem_alloc) < sk->sk_rcvbuf) { if (skb_shared(skb)) { copy_skb = skb_clone(skb, GFP_ATOMIC); @@ -2522,7 +2522,8 @@ static void tpacket_destruct_skb(struct sk_buff *skb) ts = __packet_set_timestamp(po, ph, skb); __packet_set_status(po, ph, TP_STATUS_AVAILABLE | ts); - complete(&po->skb_completion); + if (!packet_read_pending(&po->tx_ring)) + complete(&po->skb_completion); } sock_wfree(skb); @@ -3833,7 +3834,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, sockptr_t optval, if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; - pkt_sk(sk)->copy_thresh = val; + WRITE_ONCE(pkt_sk(sk)->copy_thresh, val); return 0; } case PACKET_VERSION: @@ -4087,6 +4088,9 @@ static int packet_getsockopt(struct socket *sock, int level, int optname, case PACKET_VNET_HDR_SZ: val = READ_ONCE(po->vnet_hdr_sz); break; + case PACKET_COPY_THRESH: + val = READ_ONCE(pkt_sk(sk)->copy_thresh); + break; case PACKET_VERSION: val = po->tp_version; break; diff --git a/net/packet/diag.c b/net/packet/diag.c index 9a7980e330..47f69f3dbf 100644 --- a/net/packet/diag.c +++ b/net/packet/diag.c @@ -17,7 +17,7 @@ static int pdiag_put_info(const struct packet_sock *po, struct sk_buff *nlskb) pinfo.pdi_index = po->ifindex; pinfo.pdi_version = po->tp_version; pinfo.pdi_reserve = po->tp_reserve; - pinfo.pdi_copy_thresh = po->copy_thresh; + pinfo.pdi_copy_thresh = READ_ONCE(po->copy_thresh); pinfo.pdi_tstamp = READ_ONCE(po->tp_tstamp); pinfo.pdi_flags = 0; @@ -245,6 +245,7 @@ static int packet_diag_handler_dump(struct sk_buff *skb, struct nlmsghdr *h) } static const struct sock_diag_handler packet_diag_handler = { + .owner = THIS_MODULE, .family = AF_PACKET, .dump = packet_diag_handler_dump, }; |