From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Emelyanov Subject: [PATCH net-next 9/10][IPMR]: Use on-device stats instead of private ones. Date: Tue, 20 May 2008 20:43:36 +0400 Message-ID: <4832FFB8.3090705@openvz.org> References: <4832FBD7.7040209@openvz.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Linux Netdev List To: David Miller Return-path: Received: from sacred.ru ([62.205.161.221]:51433 "EHLO sacred.ru" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757203AbYETQqD (ORCPT ); Tue, 20 May 2008 12:46:03 -0400 In-Reply-To: <4832FBD7.7040209@openvz.org> Sender: netdev-owner@vger.kernel.org List-ID: These devices use the private area of appropriate size for statistics. Turning them to use on-device ones make them "privless" and thus - really small wrt kmalloc cache, they are allocated from. Besides, code looks nicer, because of absence of multi-braced type casts and dereferences. Signed-off-by: Pavel Emelyanov --- net/ipv4/ipmr.c | 25 +++++++++---------------- 1 files changed, 9 insertions(+), 16 deletions(-) diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c index 65f1200..ddb25d9 100644 --- a/net/ipv4/ipmr.c +++ b/net/ipv4/ipmr.c @@ -181,26 +181,20 @@ static int reg_vif_num = -1; static int reg_vif_xmit(struct sk_buff *skb, struct net_device *dev) { read_lock(&mrt_lock); - ((struct net_device_stats*)netdev_priv(dev))->tx_bytes += skb->len; - ((struct net_device_stats*)netdev_priv(dev))->tx_packets++; + dev->stats->tx_bytes += skb->len; + dev->stats->tx_packets++; ipmr_cache_report(skb, reg_vif_num, IGMPMSG_WHOLEPKT); read_unlock(&mrt_lock); kfree_skb(skb); return 0; } -static struct net_device_stats *reg_vif_get_stats(struct net_device *dev) -{ - return (struct net_device_stats*)netdev_priv(dev); -} - static void reg_vif_setup(struct net_device *dev) { dev->type = ARPHRD_PIMREG; dev->mtu = ETH_DATA_LEN - sizeof(struct iphdr) - 8; dev->flags = IFF_NOARP; dev->hard_start_xmit = reg_vif_xmit; - dev->get_stats = reg_vif_get_stats; dev->destructor = free_netdev; } @@ -209,8 +203,7 @@ static struct net_device *ipmr_reg_vif(void) struct net_device *dev; struct in_device *in_dev; - dev = alloc_netdev(sizeof(struct net_device_stats), "pimreg", - reg_vif_setup); + dev = alloc_netdev(0, "pimreg", reg_vif_setup); if (dev == NULL) return NULL; @@ -1170,8 +1163,8 @@ static void ipmr_queue_xmit(struct sk_buff *skb, struct mfc_cache *c, int vifi) if (vif->flags & VIFF_REGISTER) { vif->pkt_out++; vif->bytes_out+=skb->len; - ((struct net_device_stats*)netdev_priv(vif->dev))->tx_bytes += skb->len; - ((struct net_device_stats*)netdev_priv(vif->dev))->tx_packets++; + vif->dev->stats->tx_bytes += skb->len; + vif->dev->stats->tx_packets++; ipmr_cache_report(skb, vifi, IGMPMSG_WHOLEPKT); kfree_skb(skb); return; @@ -1487,8 +1480,8 @@ int pim_rcv_v1(struct sk_buff * skb) skb->pkt_type = PACKET_HOST; dst_release(skb->dst); skb->dst = NULL; - ((struct net_device_stats*)netdev_priv(reg_dev))->rx_bytes += skb->len; - ((struct net_device_stats*)netdev_priv(reg_dev))->rx_packets++; + reg_dev->stats->rx_bytes += skb->len; + reg_dev->stats->rx_packets++; nf_reset(skb); netif_rx(skb); dev_put(reg_dev); @@ -1542,8 +1535,8 @@ static int pim_rcv(struct sk_buff * skb) skb->ip_summed = 0; skb->pkt_type = PACKET_HOST; dst_release(skb->dst); - ((struct net_device_stats*)netdev_priv(reg_dev))->rx_bytes += skb->len; - ((struct net_device_stats*)netdev_priv(reg_dev))->rx_packets++; + reg_dev->stats->rx_bytes += skb->len; + reg_dev->stats->rx_packets++; skb->dst = NULL; nf_reset(skb); netif_rx(skb); -- 1.5.3.4