diff options
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/datagram.c | 2 | ||||
| -rw-r--r-- | net/core/dev.c | 91 | ||||
| -rw-r--r-- | net/core/gen_estimator.c | 2 | ||||
| -rw-r--r-- | net/core/gen_stats.c | 2 | ||||
| -rw-r--r-- | net/core/skbuff.c | 4 | ||||
| -rw-r--r-- | net/core/sock.c | 36 |
6 files changed, 104 insertions, 33 deletions
diff --git a/net/core/datagram.c b/net/core/datagram.c index 488dd1a825c0..fdbc9a81d4c2 100644 --- a/net/core/datagram.c +++ b/net/core/datagram.c @@ -775,7 +775,7 @@ __sum16 __skb_checksum_complete(struct sk_buff *skb) EXPORT_SYMBOL(__skb_checksum_complete); /** - * skb_copy_and_csum_datagram_iovec - Copy and checkum skb to user iovec. + * skb_copy_and_csum_datagram_iovec - Copy and checksum skb to user iovec. * @skb: skbuff * @hlen: hardware length * @iov: io vector diff --git a/net/core/dev.c b/net/core/dev.c index b65a5051361f..cf8a95f48cff 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2587,13 +2587,19 @@ netdev_features_t netif_skb_features(struct sk_buff *skb) return harmonize_features(skb, features); } - features &= (skb->dev->vlan_features | NETIF_F_HW_VLAN_CTAG_TX | - NETIF_F_HW_VLAN_STAG_TX); + features = netdev_intersect_features(features, + skb->dev->vlan_features | + NETIF_F_HW_VLAN_CTAG_TX | + NETIF_F_HW_VLAN_STAG_TX); if (protocol == htons(ETH_P_8021Q) || protocol == htons(ETH_P_8021AD)) - features &= NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_FRAGLIST | - NETIF_F_GEN_CSUM | NETIF_F_HW_VLAN_CTAG_TX | - NETIF_F_HW_VLAN_STAG_TX; + features = netdev_intersect_features(features, + NETIF_F_SG | + NETIF_F_HIGHDMA | + NETIF_F_FRAGLIST | + NETIF_F_GEN_CSUM | + NETIF_F_HW_VLAN_CTAG_TX | + NETIF_F_HW_VLAN_STAG_TX); return harmonize_features(skb, features); } @@ -4803,9 +4809,14 @@ static void netdev_adjacent_sysfs_del(struct net_device *dev, sysfs_remove_link(&(dev->dev.kobj), linkname); } -#define netdev_adjacent_is_neigh_list(dev, dev_list) \ - (dev_list == &dev->adj_list.upper || \ - dev_list == &dev->adj_list.lower) +static inline bool netdev_adjacent_is_neigh_list(struct net_device *dev, + struct net_device *adj_dev, + struct list_head *dev_list) +{ + return (dev_list == &dev->adj_list.upper || + dev_list == &dev->adj_list.lower) && + net_eq(dev_net(dev), dev_net(adj_dev)); +} static int __netdev_adjacent_dev_insert(struct net_device *dev, struct net_device *adj_dev, @@ -4835,7 +4846,7 @@ static int __netdev_adjacent_dev_insert(struct net_device *dev, pr_debug("dev_hold for %s, because of link added from %s to %s\n", adj_dev->name, dev->name, adj_dev->name); - if (netdev_adjacent_is_neigh_list(dev, dev_list)) { + if (netdev_adjacent_is_neigh_list(dev, adj_dev, dev_list)) { ret = netdev_adjacent_sysfs_add(dev, adj_dev, dev_list); if (ret) goto free_adj; @@ -4856,7 +4867,7 @@ static int __netdev_adjacent_dev_insert(struct net_device *dev, return 0; remove_symlinks: - if (netdev_adjacent_is_neigh_list(dev, dev_list)) + if (netdev_adjacent_is_neigh_list(dev, adj_dev, dev_list)) netdev_adjacent_sysfs_del(dev, adj_dev->name, dev_list); free_adj: kfree(adj); @@ -4889,7 +4900,7 @@ static void __netdev_adjacent_dev_remove(struct net_device *dev, if (adj->master) sysfs_remove_link(&(dev->dev.kobj), "master"); - if (netdev_adjacent_is_neigh_list(dev, dev_list)) + if (netdev_adjacent_is_neigh_list(dev, adj_dev, dev_list)) netdev_adjacent_sysfs_del(dev, adj_dev->name, dev_list); list_del_rcu(&adj->list); @@ -5159,11 +5170,65 @@ void netdev_upper_dev_unlink(struct net_device *dev, } EXPORT_SYMBOL(netdev_upper_dev_unlink); +void netdev_adjacent_add_links(struct net_device *dev) +{ + struct netdev_adjacent *iter; + + struct net *net = dev_net(dev); + + list_for_each_entry(iter, &dev->adj_list.upper, list) { + if (!net_eq(net,dev_net(iter->dev))) + continue; + netdev_adjacent_sysfs_add(iter->dev, dev, + &iter->dev->adj_list.lower); + netdev_adjacent_sysfs_add(dev, iter->dev, + &dev->adj_list.upper); + } + + list_for_each_entry(iter, &dev->adj_list.lower, list) { + if (!net_eq(net,dev_net(iter->dev))) + continue; + netdev_adjacent_sysfs_add(iter->dev, dev, + &iter->dev->adj_list.upper); + netdev_adjacent_sysfs_add(dev, iter->dev, + &dev->adj_list.lower); + } +} + +void netdev_adjacent_del_links(struct net_device *dev) +{ + struct netdev_adjacent *iter; + + struct net *net = dev_net(dev); + + list_for_each_entry(iter, &dev->adj_list.upper, list) { + if (!net_eq(net,dev_net(iter->dev))) + continue; + netdev_adjacent_sysfs_del(iter->dev, dev->name, + &iter->dev->adj_list.lower); + netdev_adjacent_sysfs_del(dev, iter->dev->name, + &dev->adj_list.upper); + } + + list_for_each_entry(iter, &dev->adj_list.lower, list) { + if (!net_eq(net,dev_net(iter->dev))) + continue; + netdev_adjacent_sysfs_del(iter->dev, dev->name, + &iter->dev->adj_list.upper); + netdev_adjacent_sysfs_del(dev, iter->dev->name, + &dev->adj_list.lower); + } +} + void netdev_adjacent_rename_links(struct net_device *dev, char *oldname) { struct netdev_adjacent *iter; + struct net *net = dev_net(dev); + list_for_each_entry(iter, &dev->adj_list.upper, list) { + if (!net_eq(net,dev_net(iter->dev))) + continue; netdev_adjacent_sysfs_del(iter->dev, oldname, &iter->dev->adj_list.lower); netdev_adjacent_sysfs_add(iter->dev, dev, @@ -5171,6 +5236,8 @@ void netdev_adjacent_rename_links(struct net_device *dev, char *oldname) } list_for_each_entry(iter, &dev->adj_list.lower, list) { + if (!net_eq(net,dev_net(iter->dev))) + continue; netdev_adjacent_sysfs_del(iter->dev, oldname, &iter->dev->adj_list.upper); netdev_adjacent_sysfs_add(iter->dev, dev, @@ -6773,6 +6840,7 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char /* Send a netdev-removed uevent to the old namespace */ kobject_uevent(&dev->dev.kobj, KOBJ_REMOVE); + netdev_adjacent_del_links(dev); /* Actually switch the network namespace */ dev_net_set(dev, net); @@ -6787,6 +6855,7 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char /* Send a netdev-add uevent to the new namespace */ kobject_uevent(&dev->dev.kobj, KOBJ_ADD); + netdev_adjacent_add_links(dev); /* Fixup kobjects */ err = device_rename(&dev->dev, dev->name); diff --git a/net/core/gen_estimator.c b/net/core/gen_estimator.c index 6b5b6e7013ca..9d33dfffca19 100644 --- a/net/core/gen_estimator.c +++ b/net/core/gen_estimator.c @@ -197,7 +197,7 @@ struct gen_estimator *gen_find_node(const struct gnet_stats_basic_packed *bstats * as destination. A new timer with the interval specified in the * configuration TLV is created. Upon each interval, the latest statistics * will be read from &bstats and the estimated rate will be stored in - * &rate_est with the statistics lock grabed during this period. + * &rate_est with the statistics lock grabbed during this period. * * Returns 0 on success or a negative error code. * diff --git a/net/core/gen_stats.c b/net/core/gen_stats.c index 9d3d9e78397b..2ddbce4cce14 100644 --- a/net/core/gen_stats.c +++ b/net/core/gen_stats.c @@ -206,7 +206,7 @@ EXPORT_SYMBOL(gnet_stats_copy_queue); * @st: application specific statistics data * @len: length of data * - * Appends the application sepecific statistics to the top level TLV created by + * Appends the application specific statistics to the top level TLV created by * gnet_stats_start_copy() and remembers the data for XSTATS if the dumping * handle is in backward compatibility mode. * diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 163b673f9e62..da1378a3e2c7 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -2647,7 +2647,7 @@ EXPORT_SYMBOL(skb_prepare_seq_read); * skb_seq_read() will return the remaining part of the block. * * Note 1: The size of each block of data returned can be arbitrary, - * this limitation is the cost for zerocopy seqeuental + * this limitation is the cost for zerocopy sequential * reads of potentially non linear data. * * Note 2: Fragment lists within fragments are not implemented @@ -2781,7 +2781,7 @@ EXPORT_SYMBOL(skb_find_text); /** * skb_append_datato_frags - append the user data to a skb * @sk: sock structure - * @skb: skb structure to be appened with user data. + * @skb: skb structure to be appended with user data. * @getfrag: call back function to be used for getting the user data * @from: pointer to user message iov * @length: length of the iov message diff --git a/net/core/sock.c b/net/core/sock.c index 2714811afbd8..9c3f823e76a9 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -166,7 +166,7 @@ EXPORT_SYMBOL(sk_ns_capable); /** * sk_capable - Socket global capability test * @sk: Socket to use a capability on or through - * @cap: The global capbility to use + * @cap: The global capability to use * * Test to see if the opener of the socket had when the socket was * created and the current process has the capability @cap in all user @@ -183,7 +183,7 @@ EXPORT_SYMBOL(sk_capable); * @sk: Socket to use a capability on or through * @cap: The capability to use * - * Test to see if the opener of the socket had when the socke was created + * Test to see if the opener of the socket had when the socket was created * and the current process has the capability @cap over the network namespace * the socket is a member of. */ @@ -1822,6 +1822,9 @@ struct sk_buff *sock_alloc_send_pskb(struct sock *sk, unsigned long header_len, order); if (page) goto fill_page; + /* Do not retry other high order allocations */ + order = 1; + max_page_order = 0; } order--; } @@ -1863,16 +1866,14 @@ EXPORT_SYMBOL(sock_alloc_send_skb); * skb_page_frag_refill - check that a page_frag contains enough room * @sz: minimum size of the fragment we want to get * @pfrag: pointer to page_frag - * @prio: priority for memory allocation + * @gfp: priority for memory allocation * * Note: While this allocator tries to use high order pages, there is * no guarantee that allocations succeed. Therefore, @sz MUST be * less or equal than PAGE_SIZE. */ -bool skb_page_frag_refill(unsigned int sz, struct page_frag *pfrag, gfp_t prio) +bool skb_page_frag_refill(unsigned int sz, struct page_frag *pfrag, gfp_t gfp) { - int order; - if (pfrag->page) { if (atomic_read(&pfrag->page->_count) == 1) { pfrag->offset = 0; @@ -1883,20 +1884,21 @@ bool skb_page_frag_refill(unsigned int sz, struct page_frag *pfrag, gfp_t prio) put_page(pfrag->page); } - order = SKB_FRAG_PAGE_ORDER; - do { - gfp_t gfp = prio; - - if (order) - gfp |= __GFP_COMP | __GFP_NOWARN | __GFP_NORETRY; - pfrag->page = alloc_pages(gfp, order); + pfrag->offset = 0; + if (SKB_FRAG_PAGE_ORDER) { + pfrag->page = alloc_pages(gfp | __GFP_COMP | + __GFP_NOWARN | __GFP_NORETRY, + SKB_FRAG_PAGE_ORDER); if (likely(pfrag->page)) { - pfrag->offset = 0; - pfrag->size = PAGE_SIZE << order; + pfrag->size = PAGE_SIZE << SKB_FRAG_PAGE_ORDER; return true; } - } while (--order >= 0); - + } + pfrag->page = alloc_page(gfp); + if (likely(pfrag->page)) { + pfrag->size = PAGE_SIZE; + return true; + } return false; } EXPORT_SYMBOL(skb_page_frag_refill); |