diff options
Diffstat (limited to 'net')
87 files changed, 1615 insertions, 502 deletions
diff --git a/net/802/psnap.c b/net/802/psnap.c index 21cde8fd579..db6baf7cf6e 100644 --- a/net/802/psnap.c +++ b/net/802/psnap.c @@ -147,7 +147,6 @@ struct datalink_proto *register_snap_client(const unsigned char *desc, out: spin_unlock_bh(&snap_lock); - synchronize_net(); return proto; } diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index b2274d1fd60..c7a581a9689 100644 --- a/net/8021q/vlan.c +++ b/net/8021q/vlan.c @@ -46,8 +46,6 @@ int vlan_net_id __read_mostly; const char vlan_fullname[] = "802.1Q VLAN Support"; const char vlan_version[] = DRV_VERSION; -static const char vlan_copyright[] = "Ben Greear <greearb@candelatech.com>"; -static const char vlan_buggyright[] = "David S. Miller <davem@redhat.com>"; /* End of global variables definitions. */ @@ -673,8 +671,7 @@ static int __init vlan_proto_init(void) { int err; - pr_info("%s v%s %s\n", vlan_fullname, vlan_version, vlan_copyright); - pr_info("All bugs added by %s\n", vlan_buggyright); + pr_info("%s v%s\n", vlan_fullname, vlan_version); err = register_pernet_subsys(&vlan_net_ops); if (err < 0) diff --git a/net/8021q/vlan.h b/net/8021q/vlan.h index c3408def8a1..9da07e30d1a 100644 --- a/net/8021q/vlan.h +++ b/net/8021q/vlan.h @@ -118,11 +118,6 @@ extern void vlan_netlink_fini(void); extern struct rtnl_link_ops vlan_link_ops; -static inline int is_vlan_dev(struct net_device *dev) -{ - return dev->priv_flags & IFF_802_1Q_VLAN; -} - extern int vlan_net_id; struct proc_dir_entry; diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c index f247f5bff88..7ea5cf9ea08 100644 --- a/net/8021q/vlan_dev.c +++ b/net/8021q/vlan_dev.c @@ -165,7 +165,7 @@ static netdev_tx_t vlan_dev_hard_start_xmit(struct sk_buff *skb, u64_stats_update_begin(&stats->syncp); stats->tx_packets++; stats->tx_bytes += len; - u64_stats_update_begin(&stats->syncp); + u64_stats_update_end(&stats->syncp); } else { this_cpu_inc(vlan_dev_info(dev)->vlan_pcpu_stats->tx_dropped); } diff --git a/net/9p/Kconfig b/net/9p/Kconfig index 7ed75c7bd5d..d9ea09b11cf 100644 --- a/net/9p/Kconfig +++ b/net/9p/Kconfig @@ -3,8 +3,8 @@ # menuconfig NET_9P - depends on NET && EXPERIMENTAL - tristate "Plan 9 Resource Sharing Support (9P2000) (Experimental)" + depends on NET + tristate "Plan 9 Resource Sharing Support (9P2000)" help If you say Y here, you will get experimental support for Plan 9 resource sharing via the 9P2000 protocol. @@ -16,8 +16,8 @@ menuconfig NET_9P if NET_9P config NET_9P_VIRTIO - depends on EXPERIMENTAL && VIRTIO - tristate "9P Virtio Transport (Experimental)" + depends on VIRTIO + tristate "9P Virtio Transport" help This builds support for a transports between guest partitions and a host partition. diff --git a/net/9p/client.c b/net/9p/client.c index ceab943dfc4..9e3b0e640da 100644 --- a/net/9p/client.c +++ b/net/9p/client.c @@ -92,9 +92,6 @@ static int get_protocol_version(const substring_t *name) return version; } -static struct p9_req_t * -p9_client_rpc(struct p9_client *c, int8_t type, const char *fmt, ...); - /** * parse_options - parse mount options into client structure * @opts: options string passed from mount @@ -307,12 +304,13 @@ static int p9_tag_init(struct p9_client *c) c->tagpool = p9_idpool_create(); if (IS_ERR(c->tagpool)) { err = PTR_ERR(c->tagpool); - c->tagpool = NULL; goto error; } - - p9_idpool_get(c->tagpool); /* reserve tag 0 */ - + err = p9_idpool_get(c->tagpool); /* reserve tag 0 */ + if (err < 0) { + p9_idpool_destroy(c->tagpool); + goto error; + } c->max_tag = 0; error: return err; @@ -518,12 +516,15 @@ out_err: return err; } +static struct p9_req_t * +p9_client_rpc(struct p9_client *c, int8_t type, const char *fmt, ...); + /** * p9_client_flush - flush (cancel) a request * @c: client state * @oldreq: request to cancel * - * This sents a flush for a particular requests and links + * This sents a flush for a particular request and links * the flush request to the original request. The current * code only supports a single flush request although the protocol * allows for multiple flush requests to be sent for a single request. @@ -789,11 +790,13 @@ struct p9_client *p9_client_create(const char *dev_name, char *options) spin_lock_init(&clnt->lock); INIT_LIST_HEAD(&clnt->fidlist); - p9_tag_init(clnt); + err = p9_tag_init(clnt); + if (err < 0) + goto free_client; err = parse_opts(options, clnt); if (err < 0) - goto free_client; + goto destroy_tagpool; if (!clnt->trans_mod) clnt->trans_mod = v9fs_get_default_trans(); @@ -802,13 +805,12 @@ struct p9_client *p9_client_create(const char *dev_name, char *options) err = -EPROTONOSUPPORT; P9_DPRINTK(P9_DEBUG_ERROR, "No transport defined or default transport\n"); - goto free_client; + goto destroy_tagpool; } clnt->fidpool = p9_idpool_create(); if (IS_ERR(clnt->fidpool)) { err = PTR_ERR(clnt->fidpool); - clnt->fidpool = NULL; goto put_trans; } @@ -834,6 +836,8 @@ destroy_fidpool: p9_idpool_destroy(clnt->fidpool); put_trans: v9fs_put_trans(clnt->trans_mod); +destroy_tagpool: + p9_idpool_destroy(clnt->tagpool); free_client: kfree(clnt); return ERR_PTR(err); @@ -1298,7 +1302,7 @@ p9_client_read(struct p9_fid *fid, char *data, char __user *udata, u64 offset, if (count < rsize) rsize = count; - /* Don't bother zerocopy form small IO (< 1024) */ + /* Don't bother zerocopy for small IO (< 1024) */ if (((clnt->trans_mod->pref & P9_TRANS_PREF_PAYLOAD_MASK) == P9_TRANS_PREF_PAYLOAD_SEP) && (rsize > 1024)) { req = p9_client_rpc(clnt, P9_TREAD, "dqE", fid->fid, offset, diff --git a/net/9p/mod.c b/net/9p/mod.c index cf8a4128cd5..72c39827505 100644 --- a/net/9p/mod.c +++ b/net/9p/mod.c @@ -139,7 +139,7 @@ void v9fs_put_trans(struct p9_trans_module *m) } /** - * v9fs_init - Initialize module + * init_p9 - Initialize module * */ static int __init init_p9(void) @@ -154,7 +154,7 @@ static int __init init_p9(void) } /** - * v9fs_init - shutdown module + * exit_p9 - shutdown module * */ diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c index 4a9084395d3..fdfdb5747f6 100644 --- a/net/9p/trans_fd.c +++ b/net/9p/trans_fd.c @@ -916,8 +916,8 @@ p9_fd_create_tcp(struct p9_client *client, const char *addr, char *args) sin_server.sin_family = AF_INET; sin_server.sin_addr.s_addr = in_aton(addr); sin_server.sin_port = htons(opts.port); - err = sock_create_kern(PF_INET, SOCK_STREAM, IPPROTO_TCP, &csocket); - + err = __sock_create(read_pnet(¤t->nsproxy->net_ns), PF_INET, + SOCK_STREAM, IPPROTO_TCP, &csocket, 1); if (err) { P9_EPRINTK(KERN_ERR, "p9_trans_tcp: problem creating socket\n"); return err; @@ -954,7 +954,8 @@ p9_fd_create_unix(struct p9_client *client, const char *addr, char *args) sun_server.sun_family = PF_UNIX; strcpy(sun_server.sun_path, addr); - err = sock_create_kern(PF_UNIX, SOCK_STREAM, 0, &csocket); + err = __sock_create(read_pnet(¤t->nsproxy->net_ns), PF_UNIX, + SOCK_STREAM, 0, &csocket, 1); if (err < 0) { P9_EPRINTK(KERN_ERR, "p9_trans_unix: problem creating socket\n"); return err; diff --git a/net/9p/trans_rdma.c b/net/9p/trans_rdma.c index 844a7a5607e..159c50f1c6b 100644 --- a/net/9p/trans_rdma.c +++ b/net/9p/trans_rdma.c @@ -589,7 +589,8 @@ rdma_create_trans(struct p9_client *client, const char *addr, char *args) return -ENOMEM; /* Create the RDMA CM ID */ - rdma->cm_id = rdma_create_id(p9_cm_event_handler, client, RDMA_PS_TCP); + rdma->cm_id = rdma_create_id(p9_cm_event_handler, client, RDMA_PS_TCP, + IB_QPT_RC); if (IS_ERR(rdma->cm_id)) goto error; diff --git a/net/9p/util.c b/net/9p/util.c index da6af81e59d..9c1c9348ac3 100644 --- a/net/9p/util.c +++ b/net/9p/util.c @@ -93,7 +93,7 @@ int p9_idpool_get(struct p9_idpool *p) retry: if (idr_pre_get(&p->pool, GFP_NOFS) == 0) - return 0; + return -1; spin_lock_irqsave(&p->lock, flags); diff --git a/net/atm/atm_sysfs.c b/net/atm/atm_sysfs.c index f7fa67c7876..f49da5814bc 100644 --- a/net/atm/atm_sysfs.c +++ b/net/atm/atm_sysfs.c @@ -59,6 +59,14 @@ static ssize_t show_atmaddress(struct device *cdev, return pos - buf; } +static ssize_t show_atmindex(struct device *cdev, + struct device_attribute *attr, char *buf) +{ + struct atm_dev *adev = to_atm_dev(cdev); + + return sprintf(buf, "%d\n", adev->number); +} + static ssize_t show_carrier(struct device *cdev, struct device_attribute *attr, char *buf) { @@ -99,6 +107,7 @@ static ssize_t show_link_rate(struct device *cdev, static DEVICE_ATTR(address, S_IRUGO, show_address, NULL); static DEVICE_ATTR(atmaddress, S_IRUGO, show_atmaddress, NULL); +static DEVICE_ATTR(atmindex, S_IRUGO, show_atmindex, NULL); static DEVICE_ATTR(carrier, S_IRUGO, show_carrier, NULL); static DEVICE_ATTR(type, S_IRUGO, show_type, NULL); static DEVICE_ATTR(link_rate, S_IRUGO, show_link_rate, NULL); @@ -106,6 +115,7 @@ static DEVICE_ATTR(link_rate, S_IRUGO, show_link_rate, NULL); static struct device_attribute *atm_attrs[] = { &dev_attr_atmaddress, &dev_attr_address, + &dev_attr_atmindex, &dev_attr_carrier, &dev_attr_type, &dev_attr_link_rate, diff --git a/net/atm/lec.c b/net/atm/lec.c index 25073b6ef47..ba48daa68c1 100644 --- a/net/atm/lec.c +++ b/net/atm/lec.c @@ -1171,7 +1171,7 @@ static int __init lane_module_init(void) #endif register_atm_ioctl(&lane_ioctl_ops); - pr_info("lec.c: " __DATE__ " " __TIME__ " initialized\n"); + pr_info("lec.c: initialized\n"); return 0; } diff --git a/net/atm/mpc.c b/net/atm/mpc.c index 644cdf07164..3ccca42e6f9 100644 --- a/net/atm/mpc.c +++ b/net/atm/mpc.c @@ -1482,7 +1482,7 @@ static __init int atm_mpoa_init(void) if (mpc_proc_init() != 0) pr_info("failed to initialize /proc/mpoa\n"); - pr_info("mpc.c: " __DATE__ " " __TIME__ " initialized\n"); + pr_info("mpc.c: initialized\n"); return 0; } diff --git a/net/atm/proc.c b/net/atm/proc.c index f85da0779e5..be3afdefec5 100644 --- a/net/atm/proc.c +++ b/net/atm/proc.c @@ -191,7 +191,7 @@ static void vcc_info(struct seq_file *seq, struct atm_vcc *vcc) { struct sock *sk = sk_atm(vcc); - seq_printf(seq, "%p ", vcc); + seq_printf(seq, "%pK ", vcc); if (!vcc->dev) seq_printf(seq, "Unassigned "); else @@ -218,7 +218,7 @@ static void svc_info(struct seq_file *seq, struct atm_vcc *vcc) { if (!vcc->dev) seq_printf(seq, sizeof(void *) == 4 ? - "N/A@%p%10s" : "N/A@%p%2s", vcc, ""); + "N/A@%pK%10s" : "N/A@%pK%2s", vcc, ""); else seq_printf(seq, "%3d %3d %5d ", vcc->dev->number, vcc->vpi, vcc->vci); diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index a86f9ba4f05..e64a1c2df23 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -906,7 +906,7 @@ static struct l2cap_chan *l2cap_global_chan_by_psm(int state, __le16 psm, bdaddr if (c->psm == psm) { /* Exact match. */ if (!bacmp(&bt_sk(sk)->src, src)) { - read_unlock_bh(&chan_list_lock); + read_unlock(&chan_list_lock); return c; } diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c index e1f5ec75e91..3fa123185e8 100644 --- a/net/bridge/br_netfilter.c +++ b/net/bridge/br_netfilter.c @@ -117,6 +117,10 @@ static struct dst_ops fake_dst_ops = { * ipt_REJECT needs it. Future netfilter modules might * require us to fill additional fields. */ +static const u32 br_dst_default_metrics[RTAX_MAX] = { + [RTAX_MTU - 1] = 1500, +}; + void br_netfilter_rtable_init(struct net_bridge *br) { struct rtable *rt = &br->fake_rtable; @@ -124,7 +128,7 @@ void br_netfilter_rtable_init(struct net_bridge *br) atomic_set(&rt->dst.__refcnt, 1); rt->dst.dev = br->dev; rt->dst.path = &rt->dst; - dst_metric_set(&rt->dst, RTAX_MTU, 1500); + dst_init_metrics(&rt->dst, br_dst_default_metrics, true); rt->dst.flags = DST_NOXFRM; rt->dst.ops = &fake_dst_ops; } diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c index 1a92b369c82..2b5ca1a0054 100644 --- a/net/bridge/netfilter/ebtables.c +++ b/net/bridge/netfilter/ebtables.c @@ -1883,14 +1883,13 @@ static int compat_mtw_from_user(struct compat_ebt_entry_mwt *mwt, struct xt_target *wt; void *dst = NULL; int off, pad = 0; - unsigned int size_kern, entry_offset, match_size = mwt->match_size; + unsigned int size_kern, match_size = mwt->match_size; strlcpy(name, mwt->u.name, sizeof(name)); if (state->buf_kern_start) dst = state->buf_kern_start + state->buf_kern_offset; - entry_offset = (unsigned char *) mwt - base; switch (compat_mwt) { case EBT_COMPAT_MATCH: match = try_then_request_module(xt_find_match(NFPROTO_BRIDGE, @@ -1933,6 +1932,9 @@ static int compat_mtw_from_user(struct compat_ebt_entry_mwt *mwt, size_kern = wt->targetsize; module_put(wt->me); break; + + default: + return -EINVAL; } state->buf_kern_offset += match_size + off; diff --git a/net/caif/chnl_net.c b/net/caif/chnl_net.c index 649ebacaf6b..adbb424403d 100644 --- a/net/caif/chnl_net.c +++ b/net/caif/chnl_net.c @@ -139,17 +139,14 @@ static void close_work(struct work_struct *work) struct chnl_net *dev = NULL; struct list_head *list_node; struct list_head *_tmp; - /* May be called with or without RTNL lock held */ - int islocked = rtnl_is_locked(); - if (!islocked) - rtnl_lock(); + + rtnl_lock(); list_for_each_safe(list_node, _tmp, &chnl_net_list) { dev = list_entry(list_node, struct chnl_net, list_field); if (dev->state == CAIF_SHUTDOWN) dev_close(dev->netdev); } - if (!islocked) - rtnl_unlock(); + rtnl_unlock(); } static DECLARE_WORK(close_worker, close_work); diff --git a/net/can/bcm.c b/net/can/bcm.c index cced806098a..184a6572b67 100644 --- a/net/can/bcm.c +++ b/net/can/bcm.c @@ -165,9 +165,9 @@ static int bcm_proc_show(struct seq_file *m, void *v) struct bcm_sock *bo = bcm_sk(sk); struct bcm_op *op; - seq_printf(m, ">>> socket %p", sk->sk_socket); - seq_printf(m, " / sk %p", sk); - seq_printf(m, " / bo %p", bo); + seq_printf(m, ">>> socket %pK", sk->sk_socket); + seq_printf(m, " / sk %pK", sk); + seq_printf(m, " / bo %pK", bo); seq_printf(m, " / dropped %lu", bo->dropped_usr_msgs); seq_printf(m, " / bound %s", bcm_proc_getifname(ifname, bo->ifindex)); seq_printf(m, " <<<\n"); diff --git a/net/can/proc.c b/net/can/proc.c index f4265cc9c3f..0016f733969 100644 --- a/net/can/proc.c +++ b/net/can/proc.c @@ -204,12 +204,11 @@ static void can_print_rcvlist(struct seq_file *m, struct hlist_head *rx_list, hlist_for_each_entry_rcu(r, n, rx_list, list) { char *fmt = (r->can_id & CAN_EFF_FLAG)? - " %-5s %08X %08x %08x %08x %8ld %s\n" : - " %-5s %03X %08x %08lx %08lx %8ld %s\n"; + " %-5s %08x %08x %pK %pK %8ld %s\n" : + " %-5s %03x %08x %pK %pK %8ld %s\n"; seq_printf(m, fmt, DNAME(dev), r->can_id, r->mask, - (unsigned long)r->func, (unsigned long)r->data, - r->matches, r->ident); + r->func, r->data, r->matches, r->ident); } } diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c index e15a82ccc05..78b55f49de7 100644 --- a/net/ceph/messenger.c +++ b/net/ceph/messenger.c @@ -76,7 +76,8 @@ const char *ceph_pr_addr(const struct sockaddr_storage *ss) break; default: - sprintf(s, "(unknown sockaddr family %d)", (int)ss->ss_family); + snprintf(s, MAX_ADDR_STR_LEN, "(unknown sockaddr family %d)", + (int)ss->ss_family); } return s; @@ -598,7 +599,7 @@ static void prepare_write_keepalive(struct ceph_connection *con) * Connection negotiation. */ -static void prepare_connect_authorizer(struct ceph_connection *con) +static int prepare_connect_authorizer(struct ceph_connection *con) { void *auth_buf; int auth_len = 0; @@ -612,13 +613,20 @@ static void prepare_connect_authorizer(struct ceph_connection *con) con->auth_retry); mutex_lock(&con->mutex); + if (test_bit(CLOSED, &con->state) || + test_bit(OPENING, &con->state)) + return -EAGAIN; + con->out_connect.authorizer_protocol = cpu_to_le32(auth_protocol); con->out_connect.authorizer_len = cpu_to_le32(auth_len); - con->out_kvec[con->out_kvec_left].iov_base = auth_buf; - con->out_kvec[con->out_kvec_left].iov_len = auth_len; - con->out_kvec_left++; - con->out_kvec_bytes += auth_len; + if (auth_len) { + con->out_kvec[con->out_kvec_left].iov_base = auth_buf; + con->out_kvec[con->out_kvec_left].iov_len = auth_len; + con->out_kvec_left++; + con->out_kvec_bytes += auth_len; + } + return 0; } /* @@ -640,9 +648,9 @@ static void prepare_write_banner(struct ceph_messenger *msgr, set_bit(WRITE_PENDING, &con->state); } -static void prepare_write_connect(struct ceph_messenger *msgr, - struct ceph_connection *con, - int after_banner) +static int prepare_write_connect(struct ceph_messenger *msgr, + struct ceph_connection *con, + int after_banner) { unsigned global_seq = get_global_seq(con->msgr, 0); int proto; @@ -683,7 +691,7 @@ static void prepare_write_connect(struct ceph_messenger *msgr, con->out_more = 0; set_bit(WRITE_PENDING, &con->state); - prepare_connect_authorizer(con); + return prepare_connect_authorizer(con); } @@ -1065,8 +1073,10 @@ static void addr_set_port(struct sockaddr_storage *ss, int p) switch (ss->ss_family) { case AF_INET: ((struct sockaddr_in *)ss)->sin_port = htons(p); + break; case AF_INET6: ((struct sockaddr_in6 *)ss)->sin6_port = htons(p); + break; } } @@ -1216,6 +1226,7 @@ static int process_connect(struct ceph_connection *con) u64 sup_feat = con->msgr->supported_features; u64 req_feat = con->msgr->required_features; u64 server_feat = le64_to_cpu(con->in_reply.features); + int ret; dout("process_connect on %p tag %d\n", con, (int)con->in_tag); @@ -1250,7 +1261,9 @@ static int process_connect(struct ceph_connection *con) return -1; } con->auth_retry = 1; - prepare_write_connect(con->msgr, con, 0); + ret = prepare_write_connect(con->msgr, con, 0); + if (ret < 0) + return ret; prepare_read_connect(con); break; @@ -1277,6 +1290,9 @@ static int process_connect(struct ceph_connection *con) if (con->ops->peer_reset) con->ops->peer_reset(con); mutex_lock(&con->mutex); + if (test_bit(CLOSED, &con->state) || + test_bit(OPENING, &con->state)) + return -EAGAIN; break; case CEPH_MSGR_TAG_RETRY_SESSION: @@ -1341,7 +1357,9 @@ static int process_connect(struct ceph_connection *con) * to WAIT. This shouldn't happen if we are the * client. */ - pr_err("process_connect peer connecting WAIT\n"); + pr_err("process_connect got WAIT as client\n"); + con->error_msg = "protocol error, got WAIT as client"; + return -1; default: pr_err("connect protocol error, will retry\n"); @@ -1810,6 +1828,17 @@ static int try_read(struct ceph_connection *con) more: dout("try_read tag %d in_base_pos %d\n", (int)con->in_tag, con->in_base_pos); + + /* + * process_connect and process_message drop and re-take + * con->mutex. make sure we handle a racing close or reopen. + */ + if (test_bit(CLOSED, &con->state) || + test_bit(OPENING, &con->state)) { + ret = -EAGAIN; + goto out; + } + if (test_bit(CONNECTING, &con->state)) { if (!test_bit(NEGOTIATING, &con->state)) { dout("try_read connecting\n"); @@ -1938,8 +1967,10 @@ static void con_work(struct work_struct *work) { struct ceph_connection *con = container_of(work, struct ceph_connection, work.work); + int ret; mutex_lock(&con->mutex); +restart: if (test_and_clear_bit(BACKOFF, &con->state)) { dout("con_work %p backing off\n", con); if (queue_delayed_work(ceph_msgr_wq, &con->work, @@ -1969,18 +2000,31 @@ static void con_work(struct work_struct *work) con_close_socket(con); } - if (test_and_clear_bit(SOCK_CLOSED, &con->state) || - try_read(con) < 0 || - try_write(con) < 0) { - mutex_unlock(&con->mutex); - ceph_fault(con); /* error/fault path */ - goto done_unlocked; - } + if (test_and_clear_bit(SOCK_CLOSED, &con->state)) + goto fault; + + ret = try_read(con); + if (ret == -EAGAIN) + goto restart; + if (ret < 0) + goto fault; + + ret = try_write(con); + if (ret == -EAGAIN) + goto restart; + if (ret < 0) + goto fault; done: mutex_unlock(&con->mutex); done_unlocked: con->ops->put(con); + return; + +fault: + mutex_unlock(&con->mutex); + ceph_fault(con); /* error/fault path */ + goto done_unlocked; } diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c index 6b5dda1cb5d..6ea2b892f44 100644 --- a/net/ceph/osd_client.c +++ b/net/ceph/osd_client.c @@ -124,7 +124,7 @@ static void calc_layout(struct ceph_osd_client *osdc, ceph_calc_raw_layout(osdc, layout, vino.snap, off, plen, &bno, req, op); - sprintf(req->r_oid, "%llx.%08llx", vino.ino, bno); + snprintf(req->r_oid, sizeof(req->r_oid), "%llx.%08llx", vino.ino, bno); req->r_oid_len = strlen(req->r_oid); } @@ -1421,6 +1421,15 @@ void ceph_osdc_handle_map(struct ceph_osd_client *osdc, struct ceph_msg *msg) done: downgrade_write(&osdc->map_sem); ceph_monc_got_osdmap(&osdc->client->monc, osdc->osdmap->epoch); + + /* + * subscribe to subsequent osdmap updates if full to ensure + * we find out when we are no longer full and stop returning + * ENOSPC. + */ + if (ceph_osdmap_flag(osdc->osdmap, CEPH_OSDMAP_FULL)) + ceph_monc_request_next_osdmap(&osdc->client->monc); + send_queued(osdc); up_read(&osdc->map_sem); wake_up_all(&osdc->client->auth_wq); @@ -1677,8 +1686,14 @@ int ceph_osdc_start_request(struct ceph_osd_client *osdc, */ if (req->r_sent == 0) { rc = __map_request(osdc, req); - if (rc < 0) + if (rc < 0) { + if (nofail) { + dout("osdc_start_request failed map, " + " will retry %lld\n", req->r_tid); + rc = 0; + } goto out_unlock; + } if (req->r_osd == NULL) { dout("send_request %p no up osds in pg\n", req); ceph_monc_request_next_osdmap(&osdc->client->monc); diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c index 71603ac3dff..e97c3588c3e 100644 --- a/net/ceph/osdmap.c +++ b/net/ceph/osdmap.c @@ -765,7 +765,7 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end, } map->epoch++; - map->modified = map->modified; + map->modified = modified; if (newcrush) { if (map->crush) crush_destroy(map->crush); @@ -830,15 +830,20 @@ struct ceph_osdmap *osdmap_apply_incremental(void **p, void *end, map->osd_addr[osd] = addr; } - /* new_down */ + /* new_state */ ceph_decode_32_safe(p, end, len, bad); while (len--) { u32 osd; + u8 xorstate; ceph_decode_32_safe(p, end, osd, bad); + xorstate = **(u8 **)p; (*p)++; /* clean flag */ - pr_info("osd%d down\n", osd); + if (xorstate == 0) + xorstate = CEPH_OSD_UP; + if (xorstate & CEPH_OSD_UP) + pr_info("osd%d down\n", osd); if (osd < map->max_osd) - map->osd_state[osd] &= ~CEPH_OSD_UP; + map->osd_state[osd] ^= xorstate; } /* new_weight */ diff --git a/net/core/dev.c b/net/core/dev.c index bcb05cb799c..939307891e7 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1308,6 +1308,13 @@ void dev_disable_lro(struct net_device *dev) { u32 flags; + /* + * If we're trying to disable lro on a vlan device + * use the underlying physical device instead + */ + if (is_vlan_dev(dev)) + dev = vlan_dev_real_dev(dev); + if (dev->ethtool_ops && dev->ethtool_ops->get_flags) flags = dev->ethtool_ops->get_flags(dev); else @@ -2089,6 +2096,7 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev, { const struct net_device_ops *ops = dev->netdev_ops; int rc = NETDEV_TX_OK; + unsigned int skb_len; if (likely(!skb->next)) { u32 features; @@ -2139,8 +2147,9 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev, } } + skb_len = skb->len; rc = ops->ndo_start_xmit(skb, dev); - trace_net_dev_xmit(skb, rc); + trace_net_dev_xmit(skb, rc, dev, skb_len); if (rc == NETDEV_TX_OK) txq_trans_update(txq); return rc; @@ -2160,8 +2169,9 @@ gso: if (dev->priv_flags & IFF_XMIT_DST_RELEASE) skb_dst_drop(nskb); + skb_len = nskb->len; rc = ops->ndo_start_xmit(nskb, dev); - trace_net_dev_xmit(nskb, rc); + trace_net_dev_xmit(nskb, rc, dev, skb_len); if (unlikely(rc != NETDEV_TX_OK)) { if (rc & ~NETDEV_TX_MASK) goto out_kfree_gso_skb; @@ -5954,7 +5964,10 @@ EXPORT_SYMBOL(free_netdev); void synchronize_net(void) { might_sleep(); - synchronize_rcu(); + if (rtnl_is_locked()) + synchronize_rcu_expedited(); + else + synchronize_rcu(); } EXPORT_SYMBOL(synchronize_net); diff --git a/net/core/dst.c b/net/core/dst.c index 81a4fa1c95e..9ccca038444 100644 --- a/net/core/dst.c +++ b/net/core/dst.c @@ -315,7 +315,7 @@ void __dst_destroy_metrics_generic(struct dst_entry *dst, unsigned long old) { unsigned long prev, new; - new = (unsigned long) dst_default_metrics; + new = ((unsigned long) dst_default_metrics) | DST_METRICS_READ_ONLY; prev = cmpxchg(&dst->_metrics, old, new); if (prev == old) kfree(__DST_METRICS_PTR(old)); diff --git a/net/core/ethtool.c b/net/core/ethtool.c index 84e7304532e..fd14116ad7f 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -233,6 +233,29 @@ static int ethtool_set_feature_compat(struct net_device *dev, return 1; } +static int ethtool_set_flags_compat(struct net_device *dev, + int (*legacy_set)(struct net_device *, u32), + struct ethtool_set_features_block *features, u32 mask) +{ + u32 value; + + if (!legacy_set) + return 0; + + if (!(features[0].valid & mask)) + return 0; + + value = dev->features & ~features[0].valid; + value |= features[0].requested; + + features[0].valid &= ~mask; + + if (legacy_set(dev, value & mask) < 0) + netdev_info(dev, "Legacy flags change failed\n"); + + return 1; +} + static int ethtool_set_features_compat(struct net_device *dev, struct ethtool_set_features_block *features) { @@ -249,7 +272,7 @@ static int ethtool_set_features_compat(struct net_device *dev, features, NETIF_F_ALL_TSO); compat |= ethtool_set_feature_compat(dev, dev->ethtool_ops->set_rx_csum, features, NETIF_F_RXCSUM); - compat |= ethtool_set_feature_compat(dev, dev->ethtool_ops->set_flags, + compat |= ethtool_set_flags_compat(dev, dev->ethtool_ops->set_flags, features, flags_dup_features); return compat; diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c index 3911586e12e..008dc70b064 100644 --- a/net/core/fib_rules.c +++ b/net/core/fib_rules.c @@ -602,6 +602,7 @@ static int dump_rules(struct sk_buff *skb, struct netlink_callback *cb, skip: idx++; } + rcu_read_unlock(); cb->args[1] = idx; rules_ops_put(ops); diff --git a/net/core/filter.c b/net/core/filter.c index 0eb8c4466ea..36f975fa87c 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -38,6 +38,7 @@ #include <asm/unaligned.h> #include <linux/filter.h> #include <linux/reciprocal_div.h> +#include <linux/ratelimit.h> /* No hurry in this branch */ static void *__load_pointer(const struct sk_buff *skb, int k, unsigned int size) @@ -350,7 +351,9 @@ load_b: continue; } default: - WARN_ON(1); + WARN_RATELIMIT(1, "Unknown code:%u jt:%u tf:%u k:%u\n", + fentry->code, fentry->jt, + fentry->jf, fentry->k); return 0; } } diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c index 2e2dce6583e..6c6b86d0da1 100644 --- a/net/core/net_namespace.c +++ b/net/core/net_namespace.c @@ -8,6 +8,8 @@ #include <linux/idr.h> #include <linux/rculist.h> #include <linux/nsproxy.h> +#include <linux/proc_fs.h> +#include <linux/file.h> #include <net/net_namespace.h> #include <net/netns/generic.h> @@ -302,6 +304,28 @@ void __put_net(struct net *net) } EXPORT_SYMBOL_GPL(__put_net); +struct net *get_net_ns_by_fd(int fd) +{ + struct proc_inode *ei; + struct file *file; + struct net *net; + + net = ERR_PTR(-EINVAL); + file = proc_ns_fget(fd); + if (!file) + goto out; + + ei = PROC_I(file->f_dentry->d_inode); + if (ei->ns_ops != &netns_operations) + goto out; + + net = get_net(ei->ns); +out: + if (file) + fput(file); + return net; +} + #else struct net *copy_net_ns(unsigned long flags, struct net *old_net) { @@ -309,6 +333,11 @@ struct net *copy_net_ns(unsigned long flags, struct net *old_net) return ERR_PTR(-EINVAL); return old_net; } + +struct net *get_net_ns_by_fd(int fd) +{ + return ERR_PTR(-EINVAL); +} #endif struct net *get_net_ns_by_pid(pid_t pid) @@ -561,3 +590,39 @@ void unregister_pernet_device(struct pernet_operations *ops) mutex_unlock(&net_mutex); } EXPORT_SYMBOL_GPL(unregister_pernet_device); + +#ifdef CONFIG_NET_NS +static void *netns_get(struct task_struct *task) +{ + struct net *net = NULL; + struct nsproxy *nsproxy; + + rcu_read_lock(); + nsproxy = task_nsproxy(task); + if (nsproxy) + net = get_net(nsproxy->net_ns); + rcu_read_unlock(); + + return net; +} + +static void netns_put(void *ns) +{ + put_net(ns); +} + +static int netns_install(struct nsproxy *nsproxy, void *ns) +{ + put_net(nsproxy->net_ns); + nsproxy->net_ns = get_net(ns); + return 0; +} + +const struct proc_ns_operations netns_operations = { + .name = "net", + .type = CLONE_NEWNET, + .get = netns_get, + .put = netns_put, + .install = netns_install, +}; +#endif diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index d1644e317e7..abd936d8a71 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -850,6 +850,7 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev, struct nlattr *attr, *af_spec; struct rtnl_af_ops *af_ops; + ASSERT_RTNL(); nlh = nlmsg_put(skb, pid, seq, type, sizeof(*ifm), flags); if (nlh == NULL) return -EMSGSIZE; @@ -1045,6 +1046,7 @@ const struct nla_policy ifla_policy[IFLA_MAX+1] = { [IFLA_LINKMODE] = { .type = NLA_U8 }, [IFLA_LINKINFO] = { .type = NLA_NESTED }, [IFLA_NET_NS_PID] = { .type = NLA_U32 }, + [IFLA_NET_NS_FD] = { .type = NLA_U32 }, [IFLA_IFALIAS] = { .type = NLA_STRING, .len = IFALIASZ-1 }, [IFLA_VFINFO_LIST] = {. type = NLA_NESTED }, [IFLA_VF_PORTS] = { .type = NLA_NESTED }, @@ -1093,6 +1095,8 @@ struct net *rtnl_link_get_net(struct net *src_net, struct nlattr *tb[]) */ if (tb[IFLA_NET_NS_PID]) net = get_net_ns_by_pid(nla_get_u32(tb[IFLA_NET_NS_PID])); + else if (tb[IFLA_NET_NS_FD]) + net = get_net_ns_by_fd(nla_get_u32(tb[IFLA_NET_NS_FD])); else net = get_net(src_net); return net; @@ -1223,7 +1227,7 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm, int send_addr_notify = 0; int err; - if (tb[IFLA_NET_NS_PID]) { + if (tb[IFLA_NET_NS_PID] || tb[IFLA_NET_NS_FD]) { struct net *net = rtnl_link_get_net(dev_net(dev), tb); if (IS_ERR(net)) { err = PTR_ERR(net); @@ -1876,6 +1880,7 @@ static int rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh) int min_len; int family; int type; + int err; type = nlh->nlmsg_type; if (type > RTM_MAX) @@ -1902,8 +1907,11 @@ static int rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh) if (dumpit == NULL) return -EOPNOTSUPP; + __rtnl_unlock(); rtnl = net->rtnl; - return netlink_dump_start(rtnl, skb, nlh, dumpit, NULL); + err = netlink_dump_start(rtnl, skb, nlh, dumpit, NULL); + rtnl_lock(); + return err; } memset(rta_buf, 0, (rtattr_max * sizeof(struct rtattr *))); @@ -1975,7 +1983,7 @@ static int __net_init rtnetlink_net_init(struct net *net) { struct sock *sk; sk = netlink_kernel_create(net, NETLINK_ROUTE, RTNLGRP_MAX, - rtnetlink_rcv, NULL, THIS_MODULE); + rtnetlink_rcv, &rtnl_mutex, THIS_MODULE); if (!sk) return -ENOMEM; net->rtnl = sk; diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c index a829e3f60ae..77a65f03148 100644 --- a/net/core/sysctl_net_core.c +++ b/net/core/sysctl_net_core.c @@ -17,6 +17,7 @@ #include <net/ip.h> #include <net/sock.h> +#include <net/net_ratelimit.h> #ifdef CONFIG_RPS static int rps_sock_flow_sysctl(ctl_table *table, int write, diff --git a/net/core/utils.c b/net/core/utils.c index 2012bc797f9..386e263f606 100644 --- a/net/core/utils.c +++ b/net/core/utils.c @@ -27,6 +27,7 @@ #include <linux/ratelimit.h> #include <net/sock.h> +#include <net/net_ratelimit.h> #include <asm/byteorder.h> #include <asm/system.h> diff --git a/net/dns_resolver/dns_key.c b/net/dns_resolver/dns_key.c index cfa7a5e1c5c..fa000d26dc6 100644 --- a/net/dns_resolver/dns_key.c +++ b/net/dns_resolver/dns_key.c @@ -212,10 +212,12 @@ static void dns_resolver_describe(const struct key *key, struct seq_file *m) int err = key->type_data.x[0]; seq_puts(m, key->description); - if (err) - seq_printf(m, ": %d", err); - else - seq_printf(m, ": %u", key->datalen); + if (key_is_instantiated(key)) { + if (err) + seq_printf(m, ": %d", err); + else + seq_printf(m, ": %u", key->datalen); + } } /* diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index cc1463156cd..9c1926027a2 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -465,6 +465,9 @@ int inet_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) if (addr_len < sizeof(struct sockaddr_in)) goto out; + if (addr->sin_family != AF_INET) + goto out; + chk_addr_ret = inet_addr_type(sock_net(sk), addr->sin_addr.s_addr); /* Not specified by any standard per-se, however it breaks too diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c index 672e476c8c8..f1d27f6c935 100644 --- a/net/ipv4/igmp.c +++ b/net/ipv4/igmp.c @@ -1155,20 +1155,18 @@ static void igmp_group_dropped(struct ip_mc_list *im) if (!in_dev->dead) { if (IGMP_V1_SEEN(in_dev)) - goto done; + return; if (IGMP_V2_SEEN(in_dev)) { if (reporter) igmp_send_report(in_dev, im, IGMP_HOST_LEAVE_MESSAGE); - goto done; + return; } /* IGMPv3 */ igmpv3_add_delrec(in_dev, im); igmp_ifc_event(in_dev); } -done: #endif - ip_mc_clear_src(im); } static void igmp_group_added(struct ip_mc_list *im) @@ -1305,6 +1303,7 @@ void ip_mc_dec_group(struct in_device *in_dev, __be32 addr) *ip = i->next_rcu; in_dev->mc_count--; igmp_group_dropped(i); + ip_mc_clear_src(i); if (!in_dev->dead) ip_rt_multicast_event(in_dev); @@ -1414,7 +1413,8 @@ void ip_mc_destroy_dev(struct in_device *in_dev) in_dev->mc_list = i->next_rcu; in_dev->mc_count--; - igmp_group_dropped(i); + /* We've dropped the groups in ip_mc_down already */ + ip_mc_clear_src(i); ip_ma_put(i); } } diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c index 61fac4cabc7..c14d88ad348 100644 --- a/net/ipv4/inet_connection_sock.c +++ b/net/ipv4/inet_connection_sock.c @@ -33,7 +33,7 @@ EXPORT_SYMBOL(inet_csk_timer_bug_msg); * This struct holds the first and last local port number. */ struct local_ports sysctl_local_ports __read_mostly = { - .lock = SEQLOCK_UNLOCKED, + .lock = __SEQLOCK_UNLOCKED(sysctl_local_ports.lock), .range = { 32768, 61000 }, }; diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c index 9df4e635fb5..ce616d92cc5 100644 --- a/net/ipv4/inetpeer.c +++ b/net/ipv4/inetpeer.c @@ -154,11 +154,9 @@ void __init inet_initpeers(void) /* Called with or without local BH being disabled. */ static void unlink_from_unused(struct inet_peer *p) { - if (!list_empty(&p->unused)) { - spin_lock_bh(&unused_peers.lock); - list_del_init(&p->unused); - spin_unlock_bh(&unused_peers.lock); - } + spin_lock_bh(&unused_peers.lock); + list_del_init(&p->unused); + spin_unlock_bh(&unused_peers.lock); } static int addr_compare(const struct inetpeer_addr *a, @@ -205,6 +203,20 @@ static int addr_compare(const struct inetpeer_addr *a, u; \ }) +static bool atomic_add_unless_return(atomic_t *ptr, int a, int u, int *newv) +{ + int cur, old = atomic_read(ptr); + + while (old != u) { + *newv = old + a; + cur = atomic_cmpxchg(ptr, old, *newv); + if (cur == old) + return true; + old = cur; + } + return false; +} + /* * Called with rcu_read_lock() * Because we hold no lock against a writer, its quite possible we fall @@ -213,7 +225,8 @@ static int addr_compare(const struct inetpeer_addr *a, * We exit from this function if number of links exceeds PEER_MAXDEPTH */ static struct inet_peer *lookup_rcu(const struct inetpeer_addr *daddr, - struct inet_peer_base *base) + struct inet_peer_base *base, + int *newrefcnt) { struct inet_peer *u = rcu_dereference(base->root); int count = 0; @@ -226,7 +239,7 @@ static struct inet_peer *lookup_rcu(const struct inetpeer_addr *daddr, * distinction between an unused entry (refcnt=0) and * a freed one. */ - if (unlikely(!atomic_add_unless(&u->refcnt, 1, -1))) + if (!atomic_add_unless_return(&u->refcnt, 1, -1, newrefcnt)) u = NULL; return u; } @@ -465,22 +478,23 @@ struct inet_peer *inet_getpeer(struct inetpeer_addr *daddr, int create) struct inet_peer_base *base = family_to_base(daddr->family); struct inet_peer *p; unsigned int sequence; - int invalidated; + int invalidated, newrefcnt = 0; /* Look up for the address quickly, lockless. * Because of a concurrent writer, we might not find an existing entry. */ rcu_read_lock(); sequence = read_seqbegin(&base->lock); - p = lookup_rcu(daddr, base); + p = lookup_rcu(daddr, base, &newrefcnt); invalidated = read_seqretry(&base->lock, sequence); rcu_read_unlock(); if (p) { - /* The existing node has been found. +found: /* The existing node has been found. * Remove the entry from unused list if it was there. */ - unlink_from_unused(p); + if (newrefcnt == 1) + unlink_from_unused(p); return p; } @@ -494,11 +508,9 @@ struct inet_peer *inet_getpeer(struct inetpeer_addr *daddr, int create) write_seqlock_bh(&base->lock); p = lookup(daddr, stack, base); if (p != peer_avl_empty) { - atomic_inc(&p->refcnt); + newrefcnt = atomic_inc_return(&p->refcnt); write_sequnlock_bh(&base->lock); - /* Remove the entry from unused list if it was there. */ - unlink_from_unused(p); - return p; + goto found; } p = create ? kmem_cache_alloc(peer_cachep, GFP_ATOMIC) : NULL; if (p) { diff --git a/net/ipv4/ip_options.c b/net/ipv4/ip_options.c index c3118e1cd3b..ec93335901d 100644 --- a/net/ipv4/ip_options.c +++ b/net/ipv4/ip_options.c @@ -14,6 +14,7 @@ #include <linux/slab.h> #include <linux/types.h> #include <asm/uaccess.h> +#include <asm/unaligned.h> #include <linux/skbuff.h> #include <linux/ip.h> #include <linux/icmp.h> @@ -350,7 +351,7 @@ int ip_options_compile(struct net *net, goto error; } if (optptr[2] <= optlen) { - __be32 *timeptr = NULL; + unsigned char *timeptr = NULL; if (optptr[2]+3 > optptr[1]) { pp_ptr = optptr + 2; goto error; @@ -359,7 +360,7 @@ int ip_options_compile(struct net *net, case IPOPT_TS_TSONLY: opt->ts = optptr - iph; if (skb) - timeptr = (__be32*)&optptr[optptr[2]-1]; + timeptr = &optptr[optptr[2]-1]; opt->ts_needtime = 1; optptr[2] += 4; break; @@ -371,7 +372,7 @@ int ip_options_compile(struct net *net, opt->ts = optptr - iph; if (rt) { memcpy(&optptr[optptr[2]-1], &rt->rt_spec_dst, 4); - timeptr = (__be32*)&optptr[optptr[2]+3]; + timeptr = &optptr[optptr[2]+3]; } opt->ts_needaddr = 1; opt->ts_needtime = 1; @@ -389,7 +390,7 @@ int ip_options_compile(struct net *net, if (inet_addr_type(net, addr) == RTN_UNICAST) break; if (skb) - timeptr = (__be32*)&optptr[optptr[2]+3]; + timeptr = &optptr[optptr[2]+3]; } opt->ts_needtime = 1; optptr[2] += 8; @@ -403,10 +404,10 @@ int ip_options_compile(struct net *net, } if (timeptr) { struct timespec tv; - __be32 midtime; + u32 midtime; getnstimeofday(&tv); - midtime = htonl((tv.tv_sec % 86400) * MSEC_PER_SEC + tv.tv_nsec / NSEC_PER_MSEC); - memcpy(timeptr, &midtime, sizeof(__be32)); + midtime = (tv.tv_sec % 86400) * MSEC_PER_SEC + tv.tv_nsec / NSEC_PER_MSEC; + put_unaligned_be32(midtime, timeptr); opt->is_changed = 1; } } else { diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c index 1f3bb11490c..9aaa67165f4 100644 --- a/net/ipv4/ping.c +++ b/net/ipv4/ping.c @@ -137,9 +137,6 @@ static void ping_v4_unhash(struct sock *sk) struct inet_sock *isk = inet_sk(sk); pr_debug("ping_v4_unhash(isk=%p,isk->num=%u)\n", isk, isk->inet_num); if (sk_hashed(sk)) { - struct hlist_nulls_head *hslot; - - hslot = ping_hashslot(&ping_table, sock_net(sk), isk->inet_num); write_lock_bh(&ping_table.lock); hlist_nulls_del(&sk->sk_nulls_node); sock_put(sk); diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c index 11e1780455f..c9893d43242 100644 --- a/net/ipv4/raw.c +++ b/net/ipv4/raw.c @@ -979,7 +979,7 @@ static void raw_sock_seq_show(struct seq_file *seq, struct sock *sp, int i) srcp = inet->inet_num; seq_printf(seq, "%4d: %08X:%04X %08X:%04X" - " %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d\n", + " %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %pK %d\n", i, src, srcp, dest, destp, sp->sk_state, sk_wmem_alloc_get(sp), sk_rmem_alloc_get(sp), diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 3c8d9b6f1ea..a7d6671e33b 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -2371,7 +2371,7 @@ static void get_openreq4(struct sock *sk, struct request_sock *req, int ttd = req->expires - jiffies; seq_printf(f, "%4d: %08X:%04X %08X:%04X" - " %02X %08X:%08X %02X:%08lX %08X %5d %8d %u %d %p%n", + " %02X %08X:%08X %02X:%08lX %08X %5d %8d %u %d %pK%n", i, ireq->loc_addr, ntohs(inet_sk(sk)->inet_sport), @@ -2426,7 +2426,7 @@ static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i, int *len) rx_queue = max_t(int, tp->rcv_nxt - tp->copied_seq, 0); seq_printf(f, "%4d: %08X:%04X %08X:%04X %02X %08X:%08X %02X:%08lX " - "%08X %5d %8d %lu %d %p %lu %lu %u %u %d%n", + "%08X %5d %8d %lu %d %pK %lu %lu %u %u %d%n", i, src, srcp, dest, destp, sk->sk_state, tp->write_seq - tp->snd_una, rx_queue, @@ -2461,7 +2461,7 @@ static void get_timewait4_sock(struct inet_timewait_sock *tw, srcp = ntohs(tw->tw_sport); seq_printf(f, "%4d: %08X:%04X %08X:%04X" - " %02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d %p%n", + " %02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d %pK%n", i, src, srcp, dest, destp, tw->tw_substate, 0, 0, 3, jiffies_to_clock_t(ttd), 0, 0, 0, 0, atomic_read(&tw->tw_refcnt), tw, len); diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 599374f65c7..abca870d8ff 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -2090,7 +2090,7 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f, __u16 srcp = ntohs(inet->inet_sport); seq_printf(f, "%5d: %08X:%04X %08X:%04X" - " %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d%n", + " %02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %pK %d%n", bucket, src, srcp, dest, destp, sp->sk_state, sk_wmem_alloc_get(sp), sk_rmem_alloc_get(sp), diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index ae64984f81a..cc7313b8f7e 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -1240,7 +1240,7 @@ static void raw6_sock_seq_show(struct seq_file *seq, struct sock *sp, int i) srcp = inet_sk(sp)->inet_num; seq_printf(seq, "%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X " - "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d\n", + "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %pK %d\n", i, src->s6_addr32[0], src->s6_addr32[1], src->s6_addr32[2], src->s6_addr32[3], srcp, diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 868366470b4..d1fd28711ba 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -2036,7 +2036,7 @@ static void get_openreq6(struct seq_file *seq, seq_printf(seq, "%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X " - "%02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d %p\n", + "%02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d %pK\n", i, src->s6_addr32[0], src->s6_addr32[1], src->s6_addr32[2], src->s6_addr32[3], @@ -2087,7 +2087,7 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i) seq_printf(seq, "%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X " - "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %lu %lu %u %u %d\n", + "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %pK %lu %lu %u %u %d\n", i, src->s6_addr32[0], src->s6_addr32[1], src->s6_addr32[2], src->s6_addr32[3], srcp, @@ -2129,7 +2129,7 @@ static void get_timewait6_sock(struct seq_file *seq, seq_printf(seq, "%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X " - "%02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d %p\n", + "%02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d %pK\n", i, src->s6_addr32[0], src->s6_addr32[1], src->s6_addr32[2], src->s6_addr32[3], srcp, diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index fc0c42a88e5..41f8c9c08db 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -1391,7 +1391,7 @@ static void udp6_sock_seq_show(struct seq_file *seq, struct sock *sp, int bucket srcp = ntohs(inet->inet_sport); seq_printf(seq, "%5d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X " - "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %p %d\n", + "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %pK %d\n", bucket, src->s6_addr32[0], src->s6_addr32[1], src->s6_addr32[2], src->s6_addr32[3], srcp, diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c index a6770a04e3b..4fe1db12d2a 100644 --- a/net/ipv6/xfrm6_tunnel.c +++ b/net/ipv6/xfrm6_tunnel.c @@ -241,7 +241,7 @@ static int xfrm6_tunnel_rcv(struct sk_buff *skb) __be32 spi; spi = xfrm6_tunnel_spi_lookup(net, (const xfrm_address_t *)&iph->saddr); - return xfrm6_rcv_spi(skb, IPPROTO_IPV6, spi) > 0 ? : 0; + return xfrm6_rcv_spi(skb, IPPROTO_IPV6, spi); } static int xfrm6_tunnel_err(struct sk_buff *skb, struct inet6_skb_parm *opt, diff --git a/net/iucv/iucv.c b/net/iucv/iucv.c index a15c0152495..7f9124914b1 100644 --- a/net/iucv/iucv.c +++ b/net/iucv/iucv.c @@ -54,7 +54,7 @@ #include <asm/atomic.h> #include <asm/ebcdic.h> #include <asm/io.h> -#include <asm/s390_ext.h> +#include <asm/irq.h> #include <asm/smp.h> /* diff --git a/net/key/af_key.c b/net/key/af_key.c index d62401c2568..8f92cf8116e 100644 --- a/net/key/af_key.c +++ b/net/key/af_key.c @@ -3656,7 +3656,7 @@ static int pfkey_seq_show(struct seq_file *f, void *v) if (v == SEQ_START_TOKEN) seq_printf(f ,"sk RefCnt Rmem Wmem User Inode\n"); else - seq_printf(f ,"%p %-6d %-6u %-6u %-6u %-6lu\n", + seq_printf(f, "%pK %-6d %-6u %-6u %-6u %-6lu\n", s, atomic_read(&s->sk_refcnt), sk_rmem_alloc_get(s), diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 7dfbe71dc63..49d4f869e0b 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -384,11 +384,11 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, int i; enum nl80211_channel_type orig_ct; + clear_bit(SDATA_STATE_RUNNING, &sdata->state); + if (local->scan_sdata == sdata) ieee80211_scan_cancel(local); - clear_bit(SDATA_STATE_RUNNING, &sdata->state); - /* * Stop TX on this interface first. */ diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 0d7b08db8e5..866f269183c 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -752,11 +752,25 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_MONITOR); hw->wiphy->software_iftypes |= BIT(NL80211_IFTYPE_MONITOR); - /* mac80211 doesn't support more than 1 channel */ - for (i = 0; i < hw->wiphy->n_iface_combinations; i++) - if (hw->wiphy->iface_combinations[i].num_different_channels > 1) + /* + * mac80211 doesn't support more than 1 channel, and also not more + * than one IBSS interface + */ + for (i = 0; i < hw->wiphy->n_iface_combinations; i++) { + const struct ieee80211_iface_combination *c; + int j; + + c = &hw->wiphy->iface_combinations[i]; + + if (c->num_different_channels > 1) return -EINVAL; + for (j = 0; j < c->n_limits; j++) + if ((c->limits[j].types & BIT(NL80211_IFTYPE_ADHOC)) && + c->limits[j].max > 1) + return -EINVAL; + } + #ifndef CONFIG_MAC80211_MESH /* mesh depends on Kconfig, but drivers should set it if they want */ local->hw.wiphy->interface_modes &= ~BIT(NL80211_IFTYPE_MESH_POINT); @@ -1076,6 +1090,8 @@ static void __exit ieee80211_exit(void) ieee80211s_stop(); ieee80211_iface_exit(); + + rcu_barrier(); } diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h index e7c5fddb480..249e733362e 100644 --- a/net/mac80211/mesh.h +++ b/net/mac80211/mesh.h @@ -120,6 +120,7 @@ struct mesh_path { * buckets * @mean_chain_len: maximum average length for the hash buckets' list, if it is * reached, the table will grow + * rcu_head: RCU head to free the table */ struct mesh_table { /* Number of buckets will be 2^N */ @@ -132,6 +133,8 @@ struct mesh_table { int (*copy_node) (struct hlist_node *p, struct mesh_table *newtbl); int size_order; int mean_chain_len; + + struct rcu_head rcu_head; }; /* Recent multicast cache */ @@ -286,10 +289,6 @@ static inline bool mesh_path_sel_is_hwmp(struct ieee80211_sub_if_data *sdata) return sdata->u.mesh.mesh_pp_id == IEEE80211_PATH_PROTOCOL_HWMP; } -#define for_each_mesh_entry(x, p, node, i) \ - for (i = 0; i <= x->hash_mask; i++) \ - hlist_for_each_entry_rcu(node, p, &x->hash_buckets[i], list) - void ieee80211_mesh_notify_scan_completed(struct ieee80211_local *local); void ieee80211_mesh_quiesce(struct ieee80211_sub_if_data *sdata); diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c index 83ce48e3191..0d2faacc3e8 100644 --- a/net/mac80211/mesh_pathtbl.c +++ b/net/mac80211/mesh_pathtbl.c @@ -36,8 +36,8 @@ struct mpath_node { struct mesh_path *mpath; }; -static struct mesh_table *mesh_paths; -static struct mesh_table *mpp_paths; /* Store paths for MPP&MAP */ +static struct mesh_table __rcu *mesh_paths; +static struct mesh_table __rcu *mpp_paths; /* Store paths for MPP&MAP */ int mesh_paths_generation; @@ -48,17 +48,40 @@ int mesh_paths_generation; static DEFINE_RWLOCK(pathtbl_resize_lock); +static inline struct mesh_table *resize_dereference_mesh_paths(void) +{ + return rcu_dereference_protected(mesh_paths, + lockdep_is_held(&pathtbl_resize_lock)); +} + +static inline struct mesh_table *resize_dereference_mpp_paths(void) +{ + return rcu_dereference_protected(mpp_paths, + lockdep_is_held(&pathtbl_resize_lock)); +} + +/* + * CAREFUL -- "tbl" must not be an expression, + * in particular not an rcu_dereference(), since + * it's used twice. So it is illegal to do + * for_each_mesh_entry(rcu_dereference(...), ...) + */ +#define for_each_mesh_entry(tbl, p, node, i) \ + for (i = 0; i <= tbl->hash_mask; i++) \ + hlist_for_each_entry_rcu(node, p, &tbl->hash_buckets[i], list) + + static struct mesh_table *mesh_table_alloc(int size_order) { int i; struct mesh_table *newtbl; - newtbl = kmalloc(sizeof(struct mesh_table), GFP_KERNEL); + newtbl = kmalloc(sizeof(struct mesh_table), GFP_ATOMIC); if (!newtbl) return NULL; newtbl->hash_buckets = kzalloc(sizeof(struct hlist_head) * - (1 << size_order), GFP_KERNEL); + (1 << size_order), GFP_ATOMIC); if (!newtbl->hash_buckets) { kfree(newtbl); @@ -66,7 +89,7 @@ static struct mesh_table *mesh_table_alloc(int size_order) } newtbl->hashwlock = kmalloc(sizeof(spinlock_t) * - (1 << size_order), GFP_KERNEL); + (1 << size_order), GFP_ATOMIC); if (!newtbl->hashwlock) { kfree(newtbl->hash_buckets); kfree(newtbl); @@ -258,12 +281,13 @@ struct mesh_path *mpp_path_lookup(u8 *dst, struct ieee80211_sub_if_data *sdata) */ struct mesh_path *mesh_path_lookup_by_idx(int idx, struct ieee80211_sub_if_data *sdata) { + struct mesh_table *tbl = rcu_dereference(mesh_paths); struct mpath_node *node; struct hlist_node *p; int i; int j = 0; - for_each_mesh_entry(mesh_paths, p, node, i) { + for_each_mesh_entry(tbl, p, node, i) { if (sdata && node->mpath->sdata != sdata) continue; if (j++ == idx) { @@ -293,6 +317,7 @@ int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata) { struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; struct ieee80211_local *local = sdata->local; + struct mesh_table *tbl; struct mesh_path *mpath, *new_mpath; struct mpath_node *node, *new_node; struct hlist_head *bucket; @@ -332,10 +357,12 @@ int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata) spin_lock_init(&new_mpath->state_lock); init_timer(&new_mpath->timer); - hash_idx = mesh_table_hash(dst, sdata, mesh_paths); - bucket = &mesh_paths->hash_buckets[hash_idx]; + tbl = resize_dereference_mesh_paths(); + + hash_idx = mesh_table_hash(dst, sdata, tbl); + bucket = &tbl->hash_buckets[hash_idx]; - spin_lock_bh(&mesh_paths->hashwlock[hash_idx]); + spin_lock_bh(&tbl->hashwlock[hash_idx]); err = -EEXIST; hlist_for_each_entry(node, n, bucket, list) { @@ -345,13 +372,13 @@ int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata) } hlist_add_head_rcu(&new_node->list, bucket); - if (atomic_inc_return(&mesh_paths->entries) >= - mesh_paths->mean_chain_len * (mesh_paths->hash_mask + 1)) + if (atomic_inc_return(&tbl->entries) >= + tbl->mean_chain_len * (tbl->hash_mask + 1)) grow = 1; mesh_paths_generation++; - spin_unlock_bh(&mesh_paths->hashwlock[hash_idx]); + spin_unlock_bh(&tbl->hashwlock[hash_idx]); read_unlock_bh(&pathtbl_resize_lock); if (grow) { set_bit(MESH_WORK_GROW_MPATH_TABLE, &ifmsh->wrkq_flags); @@ -360,7 +387,7 @@ int mesh_path_add(u8 *dst, struct ieee80211_sub_if_data *sdata) return 0; err_exists: - spin_unlock_bh(&mesh_paths->hashwlock[hash_idx]); + spin_unlock_bh(&tbl->hashwlock[hash_idx]); read_unlock_bh(&pathtbl_resize_lock); kfree(new_node); err_node_alloc: @@ -370,58 +397,59 @@ err_path_alloc: return err; } +static void mesh_table_free_rcu(struct rcu_head *rcu) +{ + struct mesh_table *tbl = container_of(rcu, struct mesh_table, rcu_head); + + mesh_table_free(tbl, false); +} + void mesh_mpath_table_grow(void) { struct mesh_table *oldtbl, *newtbl; - rcu_read_lock(); - newtbl = mesh_table_alloc(rcu_dereference(mesh_paths)->size_order + 1); - if (!newtbl) - return; write_lock_bh(&pathtbl_resize_lock); - oldtbl = mesh_paths; - if (mesh_table_grow(mesh_paths, newtbl) < 0) { - rcu_read_unlock(); + oldtbl = resize_dereference_mesh_paths(); + newtbl = mesh_table_alloc(oldtbl->size_order + 1); + if (!newtbl) + goto out; + if (mesh_table_grow(oldtbl, newtbl) < 0) { __mesh_table_free(newtbl); - write_unlock_bh(&pathtbl_resize_lock); - return; + goto out; } - rcu_read_unlock(); rcu_assign_pointer(mesh_paths, newtbl); - write_unlock_bh(&pathtbl_resize_lock); - synchronize_rcu(); - mesh_table_free(oldtbl, false); + call_rcu(&oldtbl->rcu_head, mesh_table_free_rcu); + + out: + write_unlock_bh(&pathtbl_resize_lock); } void mesh_mpp_table_grow(void) { struct mesh_table *oldtbl, *newtbl; - rcu_read_lock(); - newtbl = mesh_table_alloc(rcu_dereference(mpp_paths)->size_order + 1); - if (!newtbl) - return; write_lock_bh(&pathtbl_resize_lock); - oldtbl = mpp_paths; - if (mesh_table_grow(mpp_paths, newtbl) < 0) { - rcu_read_unlock(); + oldtbl = resize_dereference_mpp_paths(); + newtbl = mesh_table_alloc(oldtbl->size_order + 1); + if (!newtbl) + goto out; + if (mesh_table_grow(oldtbl, newtbl) < 0) { __mesh_table_free(newtbl); - write_unlock_bh(&pathtbl_resize_lock); - return; + goto out; } - rcu_read_unlock(); rcu_assign_pointer(mpp_paths, newtbl); - write_unlock_bh(&pathtbl_resize_lock); + call_rcu(&oldtbl->rcu_head, mesh_table_free_rcu); - synchronize_rcu(); - mesh_table_free(oldtbl, false); + out: + write_unlock_bh(&pathtbl_resize_lock); } int mpp_path_add(u8 *dst, u8 *mpp, struct ieee80211_sub_if_data *sdata) { struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; struct ieee80211_local *local = sdata->local; + struct mesh_table *tbl; struct mesh_path *mpath, *new_mpath; struct mpath_node *node, *new_node; struct hlist_head *bucket; @@ -456,10 +484,12 @@ int mpp_path_add(u8 *dst, u8 *mpp, struct ieee80211_sub_if_data *sdata) new_mpath->exp_time = jiffies; spin_lock_init(&new_mpath->state_lock); - hash_idx = mesh_table_hash(dst, sdata, mpp_paths); - bucket = &mpp_paths->hash_buckets[hash_idx]; + tbl = resize_dereference_mpp_paths(); - spin_lock_bh(&mpp_paths->hashwlock[hash_idx]); + hash_idx = mesh_table_hash(dst, sdata, tbl); + bucket = &tbl->hash_buckets[hash_idx]; + + spin_lock_bh(&tbl->hashwlock[hash_idx]); err = -EEXIST; hlist_for_each_entry(node, n, bucket, list) { @@ -469,11 +499,11 @@ int mpp_path_add(u8 *dst, u8 *mpp, struct ieee80211_sub_if_data *sdata) } hlist_add_head_rcu(&new_node->list, bucket); - if (atomic_inc_return(&mpp_paths->entries) >= - mpp_paths->mean_chain_len * (mpp_paths->hash_mask + 1)) + if (atomic_inc_return(&tbl->entries) >= + tbl->mean_chain_len * (tbl->hash_mask + 1)) grow = 1; - spin_unlock_bh(&mpp_paths->hashwlock[hash_idx]); + spin_unlock_bh(&tbl->hashwlock[hash_idx]); read_unlock_bh(&pathtbl_resize_lock); if (grow) { set_bit(MESH_WORK_GROW_MPP_TABLE, &ifmsh->wrkq_flags); @@ -482,7 +512,7 @@ int mpp_path_add(u8 *dst, u8 *mpp, struct ieee80211_sub_if_data *sdata) return 0; err_exists: - spin_unlock_bh(&mpp_paths->hashwlock[hash_idx]); + spin_unlock_bh(&tbl->hashwlock[hash_idx]); read_unlock_bh(&pathtbl_resize_lock); kfree(new_node); err_node_alloc: @@ -502,6 +532,7 @@ err_path_alloc: */ void mesh_plink_broken(struct sta_info *sta) { + struct mesh_table *tbl; static const u8 bcast[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; struct mesh_path *mpath; struct mpath_node *node; @@ -510,10 +541,11 @@ void mesh_plink_broken(struct sta_info *sta) int i; rcu_read_lock(); - for_each_mesh_entry(mesh_paths, p, node, i) { + tbl = rcu_dereference(mesh_paths); + for_each_mesh_entry(tbl, p, node, i) { mpath = node->mpath; spin_lock_bh(&mpath->state_lock); - if (mpath->next_hop == sta && + if (rcu_dereference(mpath->next_hop) == sta && mpath->flags & MESH_PATH_ACTIVE && !(mpath->flags & MESH_PATH_FIXED)) { mpath->flags &= ~MESH_PATH_ACTIVE; @@ -542,30 +574,38 @@ void mesh_plink_broken(struct sta_info *sta) */ void mesh_path_flush_by_nexthop(struct sta_info *sta) { + struct mesh_table *tbl; struct mesh_path *mpath; struct mpath_node *node; struct hlist_node *p; int i; - for_each_mesh_entry(mesh_paths, p, node, i) { + rcu_read_lock(); + tbl = rcu_dereference(mesh_paths); + for_each_mesh_entry(tbl, p, node, i) { mpath = node->mpath; - if (mpath->next_hop == sta) + if (rcu_dereference(mpath->next_hop) == sta) mesh_path_del(mpath->dst, mpath->sdata); } + rcu_read_unlock(); } void mesh_path_flush(struct ieee80211_sub_if_data *sdata) { + struct mesh_table *tbl; struct mesh_path *mpath; struct mpath_node *node; struct hlist_node *p; int i; - for_each_mesh_entry(mesh_paths, p, node, i) { + rcu_read_lock(); + tbl = rcu_dereference(mesh_paths); + for_each_mesh_entry(tbl, p, node, i) { mpath = node->mpath; if (mpath->sdata == sdata) mesh_path_del(mpath->dst, mpath->sdata); } + rcu_read_unlock(); } static void mesh_path_node_reclaim(struct rcu_head *rp) @@ -589,6 +629,7 @@ static void mesh_path_node_reclaim(struct rcu_head *rp) */ int mesh_path_del(u8 *addr, struct ieee80211_sub_if_data *sdata) { + struct mesh_table *tbl; struct mesh_path *mpath; struct mpath_node *node; struct hlist_head *bucket; @@ -597,19 +638,20 @@ int mesh_path_del(u8 *addr, struct ieee80211_sub_if_data *sdata) int err = 0; read_lock_bh(&pathtbl_resize_lock); - hash_idx = mesh_table_hash(addr, sdata, mesh_paths); - bucket = &mesh_paths->hash_buckets[hash_idx]; + tbl = resize_dereference_mesh_paths(); + hash_idx = mesh_table_hash(addr, sdata, tbl); + bucket = &tbl->hash_buckets[hash_idx]; - spin_lock_bh(&mesh_paths->hashwlock[hash_idx]); + spin_lock_bh(&tbl->hashwlock[hash_idx]); hlist_for_each_entry(node, n, bucket, list) { mpath = node->mpath; if (mpath->sdata == sdata && - memcmp(addr, mpath->dst, ETH_ALEN) == 0) { + memcmp(addr, mpath->dst, ETH_ALEN) == 0) { spin_lock_bh(&mpath->state_lock); mpath->flags |= MESH_PATH_RESOLVING; hlist_del_rcu(&node->list); call_rcu(&node->rcu, mesh_path_node_reclaim); - atomic_dec(&mesh_paths->entries); + atomic_dec(&tbl->entries); spin_unlock_bh(&mpath->state_lock); goto enddel; } @@ -618,7 +660,7 @@ int mesh_path_del(u8 *addr, struct ieee80211_sub_if_data *sdata) err = -ENXIO; enddel: mesh_paths_generation++; - spin_unlock_bh(&mesh_paths->hashwlock[hash_idx]); + spin_unlock_bh(&tbl->hashwlock[hash_idx]); read_unlock_bh(&pathtbl_resize_lock); return err; } @@ -719,8 +761,10 @@ static void mesh_path_node_free(struct hlist_node *p, bool free_leafs) struct mpath_node *node = hlist_entry(p, struct mpath_node, list); mpath = node->mpath; hlist_del_rcu(p); - if (free_leafs) + if (free_leafs) { + del_timer_sync(&mpath->timer); kfree(mpath); + } kfree(node); } @@ -745,52 +789,60 @@ static int mesh_path_node_copy(struct hlist_node *p, struct mesh_table *newtbl) int mesh_pathtbl_init(void) { - mesh_paths = mesh_table_alloc(INIT_PATHS_SIZE_ORDER); - if (!mesh_paths) + struct mesh_table *tbl_path, *tbl_mpp; + + tbl_path = mesh_table_alloc(INIT_PATHS_SIZE_ORDER); + if (!tbl_path) return -ENOMEM; - mesh_paths->free_node = &mesh_path_node_free; - mesh_paths->copy_node = &mesh_path_node_copy; - mesh_paths->mean_chain_len = MEAN_CHAIN_LEN; + tbl_path->free_node = &mesh_path_node_free; + tbl_path->copy_node = &mesh_path_node_copy; + tbl_path->mean_chain_len = MEAN_CHAIN_LEN; - mpp_paths = mesh_table_alloc(INIT_PATHS_SIZE_ORDER); - if (!mpp_paths) { - mesh_table_free(mesh_paths, true); + tbl_mpp = mesh_table_alloc(INIT_PATHS_SIZE_ORDER); + if (!tbl_mpp) { + mesh_table_free(tbl_path, true); return -ENOMEM; } - mpp_paths->free_node = &mesh_path_node_free; - mpp_paths->copy_node = &mesh_path_node_copy; - mpp_paths->mean_chain_len = MEAN_CHAIN_LEN; + tbl_mpp->free_node = &mesh_path_node_free; + tbl_mpp->copy_node = &mesh_path_node_copy; + tbl_mpp->mean_chain_len = MEAN_CHAIN_LEN; + + /* Need no locking since this is during init */ + RCU_INIT_POINTER(mesh_paths, tbl_path); + RCU_INIT_POINTER(mpp_paths, tbl_mpp); return 0; } void mesh_path_expire(struct ieee80211_sub_if_data *sdata) { + struct mesh_table *tbl; struct mesh_path *mpath; struct mpath_node *node; struct hlist_node *p; int i; - read_lock_bh(&pathtbl_resize_lock); - for_each_mesh_entry(mesh_paths, p, node, i) { + rcu_read_lock(); + tbl = rcu_dereference(mesh_paths); + for_each_mesh_entry(tbl, p, node, i) { if (node->mpath->sdata != sdata) continue; mpath = node->mpath; spin_lock_bh(&mpath->state_lock); if ((!(mpath->flags & MESH_PATH_RESOLVING)) && (!(mpath->flags & MESH_PATH_FIXED)) && - time_after(jiffies, - mpath->exp_time + MESH_PATH_EXPIRE)) { + time_after(jiffies, mpath->exp_time + MESH_PATH_EXPIRE)) { spin_unlock_bh(&mpath->state_lock); mesh_path_del(mpath->dst, mpath->sdata); } else spin_unlock_bh(&mpath->state_lock); } - read_unlock_bh(&pathtbl_resize_lock); + rcu_read_unlock(); } void mesh_pathtbl_unregister(void) { - mesh_table_free(mesh_paths, true); - mesh_table_free(mpp_paths, true); + /* no need for locking during exit path */ + mesh_table_free(rcu_dereference_raw(mesh_paths), true); + mesh_table_free(rcu_dereference_raw(mpp_paths), true); } diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 4f6b2675e41..456cccf26b5 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -232,6 +232,9 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata, WARN_ON(!ieee80211_set_channel_type(local, sdata, channel_type)); } + ieee80211_stop_queues_by_reason(&sdata->local->hw, + IEEE80211_QUEUE_STOP_REASON_CSA); + /* channel_type change automatically detected */ ieee80211_hw_config(local, 0); @@ -245,6 +248,9 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata, rcu_read_unlock(); } + ieee80211_wake_queues_by_reason(&sdata->local->hw, + IEEE80211_QUEUE_STOP_REASON_CSA); + ht_opmode = le16_to_cpu(hti->operation_mode); /* if bss configuration changed store the new one */ @@ -1089,6 +1095,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, local->hw.conf.flags &= ~IEEE80211_CONF_PS; config_changed |= IEEE80211_CONF_CHANGE_PS; } + local->ps_sdata = NULL; ieee80211_hw_config(local, config_changed); diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index d20046b5d8f..58ffa7d069c 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -15,7 +15,6 @@ #include <linux/if_arp.h> #include <linux/rtnetlink.h> #include <linux/pm_qos_params.h> -#include <linux/slab.h> #include <net/sch_generic.h> #include <linux/slab.h> #include <net/mac80211.h> @@ -719,6 +718,11 @@ void ieee80211_scan_work(struct work_struct *work) * without scheduling a new work */ do { + if (!ieee80211_sdata_running(sdata)) { + aborted = true; + goto out_complete; + } + switch (local->next_scan_state) { case SCAN_DECISION: /* if no more bands/channels left, complete scan */ diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c index 72d1ac611fd..8041befc655 100644 --- a/net/netfilter/ipset/ip_set_core.c +++ b/net/netfilter/ipset/ip_set_core.c @@ -815,7 +815,7 @@ ip_set_flush(struct sock *ctnl, struct sk_buff *skb, ip_set_id_t i; if (unlikely(protocol_failed(attr))) - return -EPROTO; + return -IPSET_ERR_PROTOCOL; if (!attr[IPSET_ATTR_SETNAME]) { for (i = 0; i < ip_set_max; i++) diff --git a/net/netfilter/ipvs/ip_vs_ftp.c b/net/netfilter/ipvs/ip_vs_ftp.c index 6b5dd6ddaae..af63553fa33 100644 --- a/net/netfilter/ipvs/ip_vs_ftp.c +++ b/net/netfilter/ipvs/ip_vs_ftp.c @@ -411,25 +411,35 @@ static struct ip_vs_app ip_vs_ftp = { static int __net_init __ip_vs_ftp_init(struct net *net) { int i, ret; - struct ip_vs_app *app = &ip_vs_ftp; + struct ip_vs_app *app; + struct netns_ipvs *ipvs = net_ipvs(net); + + app = kmemdup(&ip_vs_ftp, sizeof(struct ip_vs_app), GFP_KERNEL); + if (!app) + return -ENOMEM; + INIT_LIST_HEAD(&app->a_list); + INIT_LIST_HEAD(&app->incs_list); + ipvs->ftp_app = app; ret = register_ip_vs_app(net, app); if (ret) - return ret; + goto err_exit; for (i=0; i<IP_VS_APP_MAX_PORTS; i++) { if (!ports[i]) continue; ret = register_ip_vs_app_inc(net, app, app->protocol, ports[i]); if (ret) - break; + goto err_unreg; pr_info("%s: loaded support on port[%d] = %d\n", app->name, i, ports[i]); } + return 0; - if (ret) - unregister_ip_vs_app(net, app); - +err_unreg: + unregister_ip_vs_app(net, app); +err_exit: + kfree(ipvs->ftp_app); return ret; } /* @@ -437,9 +447,10 @@ static int __net_init __ip_vs_ftp_init(struct net *net) */ static void __ip_vs_ftp_exit(struct net *net) { - struct ip_vs_app *app = &ip_vs_ftp; + struct netns_ipvs *ipvs = net_ipvs(net); - unregister_ip_vs_app(net, app); + unregister_ip_vs_app(net, ipvs->ftp_app); + kfree(ipvs->ftp_app); } static struct pernet_operations ip_vs_ftp_ops = { diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 5fe4f3b04ed..6ef64adf736 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -1985,7 +1985,7 @@ static int netlink_seq_show(struct seq_file *seq, void *v) struct sock *s = v; struct netlink_sock *nlk = nlk_sk(s); - seq_printf(seq, "%p %-3d %-6d %08x %-8d %-8d %p %-8d %-8d %-8lu\n", + seq_printf(seq, "%pK %-3d %-6d %08x %-8d %-8d %pK %-8d %-8d %-8lu\n", s, s->sk_protocol, nlk->pid, diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 549527bca87..ba248d93399 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -798,7 +798,12 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev, getnstimeofday(&ts); h.h2->tp_sec = ts.tv_sec; h.h2->tp_nsec = ts.tv_nsec; - h.h2->tp_vlan_tci = vlan_tx_tag_get(skb); + if (vlan_tx_tag_present(skb)) { + h.h2->tp_vlan_tci = vlan_tx_tag_get(skb); + status |= TP_STATUS_VLAN_VALID; + } else { + h.h2->tp_vlan_tci = 0; + } hdrlen = sizeof(*h.h2); break; default: @@ -1725,8 +1730,12 @@ static int packet_recvmsg(struct kiocb *iocb, struct socket *sock, aux.tp_snaplen = skb->len; aux.tp_mac = 0; aux.tp_net = skb_network_offset(skb); - aux.tp_vlan_tci = vlan_tx_tag_get(skb); - + if (vlan_tx_tag_present(skb)) { + aux.tp_vlan_tci = vlan_tx_tag_get(skb); + aux.tp_status |= TP_STATUS_VLAN_VALID; + } else { + aux.tp_vlan_tci = 0; + } put_cmsg(msg, SOL_PACKET, PACKET_AUXDATA, sizeof(aux), &aux); } @@ -2706,7 +2715,7 @@ static int packet_seq_show(struct seq_file *seq, void *v) const struct packet_sock *po = pkt_sk(s); seq_printf(seq, - "%p %-6d %-4d %04x %-5d %1d %-6u %-6u %-6lu\n", + "%pK %-6d %-4d %04x %-5d %1d %-6u %-6u %-6lu\n", s, atomic_read(&s->sk_refcnt), s->sk_type, diff --git a/net/phonet/socket.c b/net/phonet/socket.c index 8c5bfcef92c..ab07711cf2f 100644 --- a/net/phonet/socket.c +++ b/net/phonet/socket.c @@ -607,7 +607,7 @@ static int pn_sock_seq_show(struct seq_file *seq, void *v) struct pn_sock *pn = pn_sk(sk); seq_printf(seq, "%2d %04X:%04X:%02X %02X %08X:%08X %5d %lu " - "%d %p %d%n", + "%d %pK %d%n", sk->sk_protocol, pn->sobject, pn->dobject, pn->resource, sk->sk_state, sk_wmem_alloc_get(sk), sk_rmem_alloc_get(sk), diff --git a/net/rds/ib.c b/net/rds/ib.c index cce19f95c62..3b83086bcc3 100644 --- a/net/rds/ib.c +++ b/net/rds/ib.c @@ -325,7 +325,7 @@ static int rds_ib_laddr_check(__be32 addr) /* Create a CMA ID and try to bind it. This catches both * IB and iWARP capable NICs. */ - cm_id = rdma_create_id(NULL, NULL, RDMA_PS_TCP); + cm_id = rdma_create_id(NULL, NULL, RDMA_PS_TCP, IB_QPT_RC); if (IS_ERR(cm_id)) return PTR_ERR(cm_id); diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c index ee369d201a6..fd453dd5124 100644 --- a/net/rds/ib_cm.c +++ b/net/rds/ib_cm.c @@ -587,7 +587,7 @@ int rds_ib_conn_connect(struct rds_connection *conn) /* XXX I wonder what affect the port space has */ /* delegate cm event handler to rdma_transport */ ic->i_cm_id = rdma_create_id(rds_rdma_cm_event_handler, conn, - RDMA_PS_TCP); + RDMA_PS_TCP, IB_QPT_RC); if (IS_ERR(ic->i_cm_id)) { ret = PTR_ERR(ic->i_cm_id); ic->i_cm_id = NULL; diff --git a/net/rds/iw.c b/net/rds/iw.c index 5a9676fe594..f7474844f09 100644 --- a/net/rds/iw.c +++ b/net/rds/iw.c @@ -226,7 +226,7 @@ static int rds_iw_laddr_check(__be32 addr) /* Create a CMA ID and try to bind it. This catches both * IB and iWARP capable NICs. */ - cm_id = rdma_create_id(NULL, NULL, RDMA_PS_TCP); + cm_id = rdma_create_id(NULL, NULL, RDMA_PS_TCP, IB_QPT_RC); if (IS_ERR(cm_id)) return PTR_ERR(cm_id); diff --git a/net/rds/iw_cm.c b/net/rds/iw_cm.c index 3a60a15d1b4..c12db66f24c 100644 --- a/net/rds/iw_cm.c +++ b/net/rds/iw_cm.c @@ -522,7 +522,7 @@ int rds_iw_conn_connect(struct rds_connection *conn) /* XXX I wonder what affect the port space has */ /* delegate cm event handler to rdma_transport */ ic->i_cm_id = rdma_create_id(rds_rdma_cm_event_handler, conn, - RDMA_PS_TCP); + RDMA_PS_TCP, IB_QPT_RC); if (IS_ERR(ic->i_cm_id)) { ret = PTR_ERR(ic->i_cm_id); ic->i_cm_id = NULL; diff --git a/net/rds/rdma_transport.c b/net/rds/rdma_transport.c index 4195a053982..f8760e1b668 100644 --- a/net/rds/rdma_transport.c +++ b/net/rds/rdma_transport.c @@ -158,7 +158,8 @@ static int rds_rdma_listen_init(void) struct rdma_cm_id *cm_id; int ret; - cm_id = rdma_create_id(rds_rdma_cm_event_handler, NULL, RDMA_PS_TCP); + cm_id = rdma_create_id(rds_rdma_cm_event_handler, NULL, RDMA_PS_TCP, + IB_QPT_RC); if (IS_ERR(cm_id)) { ret = PTR_ERR(cm_id); printk(KERN_ERR "RDS/RDMA: failed to setup listener, " diff --git a/net/rfkill/Kconfig b/net/rfkill/Kconfig index 48464ca13b2..78efe895b66 100644 --- a/net/rfkill/Kconfig +++ b/net/rfkill/Kconfig @@ -33,3 +33,12 @@ config RFKILL_REGULATOR To compile this driver as a module, choose M here: the module will be called rfkill-regulator. + +config RFKILL_GPIO + tristate "GPIO RFKILL driver" + depends on RFKILL && GPIOLIB && HAVE_CLK + default n + help + If you say yes here you get support of a generic gpio RFKILL + driver. The platform should fill in the appropriate fields in the + rfkill_gpio_platform_data structure and pass that to the driver. diff --git a/net/rfkill/Makefile b/net/rfkill/Makefile index d9a5a58ffd8..311768783f4 100644 --- a/net/rfkill/Makefile +++ b/net/rfkill/Makefile @@ -6,3 +6,4 @@ rfkill-y += core.o rfkill-$(CONFIG_RFKILL_INPUT) += input.o obj-$(CONFIG_RFKILL) += rfkill.o obj-$(CONFIG_RFKILL_REGULATOR) += rfkill-regulator.o +obj-$(CONFIG_RFKILL_GPIO) += rfkill-gpio.o diff --git a/net/rfkill/rfkill-gpio.c b/net/rfkill/rfkill-gpio.c new file mode 100644 index 00000000000..256c5ddd2d7 --- /dev/null +++ b/net/rfkill/rfkill-gpio.c @@ -0,0 +1,227 @@ +/* + * Copyright (c) 2011, NVIDIA Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include <linux/gpio.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/rfkill.h> +#include <linux/platform_device.h> +#include <linux/clk.h> +#include <linux/slab.h> + +#include <linux/rfkill-gpio.h> + +enum rfkill_gpio_clk_state { + UNSPECIFIED = 0, + PWR_ENABLED, + PWR_DISABLED +}; + +#define PWR_CLK_SET(_RF, _EN) \ + ((_RF)->pwr_clk_enabled = (!(_EN) ? PWR_ENABLED : PWR_DISABLED)) +#define PWR_CLK_ENABLED(_RF) ((_RF)->pwr_clk_enabled == PWR_ENABLED) +#define PWR_CLK_DISABLED(_RF) ((_RF)->pwr_clk_enabled != PWR_ENABLED) + +struct rfkill_gpio_data { + struct rfkill_gpio_platform_data *pdata; + struct rfkill *rfkill_dev; + char *reset_name; + char *shutdown_name; + enum rfkill_gpio_clk_state pwr_clk_enabled; + struct clk *pwr_clk; +}; + +static int rfkill_gpio_set_power(void *data, bool blocked) +{ + struct rfkill_gpio_data *rfkill = data; + + if (blocked) { + if (gpio_is_valid(rfkill->pdata->shutdown_gpio)) + gpio_direction_output(rfkill->pdata->shutdown_gpio, 0); + if (gpio_is_valid(rfkill->pdata->reset_gpio)) + gpio_direction_output(rfkill->pdata->reset_gpio, 0); + if (rfkill->pwr_clk && PWR_CLK_ENABLED(rfkill)) + clk_disable(rfkill->pwr_clk); + } else { + if (rfkill->pwr_clk && PWR_CLK_DISABLED(rfkill)) + clk_enable(rfkill->pwr_clk); + if (gpio_is_valid(rfkill->pdata->reset_gpio)) + gpio_direction_output(rfkill->pdata->reset_gpio, 1); + if (gpio_is_valid(rfkill->pdata->shutdown_gpio)) + gpio_direction_output(rfkill->pdata->shutdown_gpio, 1); + } + + if (rfkill->pwr_clk) + PWR_CLK_SET(rfkill, blocked); + + return 0; +} + +static const struct rfkill_ops rfkill_gpio_ops = { + .set_block = rfkill_gpio_set_power, +}; + +static int rfkill_gpio_probe(struct platform_device *pdev) +{ + struct rfkill_gpio_data *rfkill; + struct rfkill_gpio_platform_data *pdata = pdev->dev.platform_data; + int ret = 0; + int len = 0; + + if (!pdata) { + pr_warn("%s: No platform data specified\n", __func__); + return -EINVAL; + } + + /* make sure at-least one of the GPIO is defined and that + * a name is specified for this instance */ + if (!pdata->name || (!gpio_is_valid(pdata->reset_gpio) && + !gpio_is_valid(pdata->shutdown_gpio))) { + pr_warn("%s: invalid platform data\n", __func__); + return -EINVAL; + } + + rfkill = kzalloc(sizeof(*rfkill), GFP_KERNEL); + if (!rfkill) + return -ENOMEM; + + rfkill->pdata = pdata; + + len = strlen(pdata->name); + rfkill->reset_name = kzalloc(len + 7, GFP_KERNEL); + if (!rfkill->reset_name) { + ret = -ENOMEM; + goto fail_alloc; + } + + rfkill->shutdown_name = kzalloc(len + 10, GFP_KERNEL); + if (!rfkill->shutdown_name) { + ret = -ENOMEM; + goto fail_reset_name; + } + + snprintf(rfkill->reset_name, len + 6 , "%s_reset", pdata->name); + snprintf(rfkill->shutdown_name, len + 9, "%s_shutdown", pdata->name); + + if (pdata->power_clk_name) { + rfkill->pwr_clk = clk_get(&pdev->dev, pdata->power_clk_name); + if (IS_ERR(rfkill->pwr_clk)) { + pr_warn("%s: can't find pwr_clk.\n", __func__); + goto fail_shutdown_name; + } + } + + if (gpio_is_valid(pdata->reset_gpio)) { + ret = gpio_request(pdata->reset_gpio, rfkill->reset_name); + if (ret) { + pr_warn("%s: failed to get reset gpio.\n", __func__); + goto fail_clock; + } + } + + if (gpio_is_valid(pdata->shutdown_gpio)) { + ret = gpio_request(pdata->shutdown_gpio, rfkill->shutdown_name); + if (ret) { + pr_warn("%s: failed to get shutdown gpio.\n", __func__); + goto fail_reset; + } + } + + rfkill->rfkill_dev = rfkill_alloc(pdata->name, &pdev->dev, pdata->type, + &rfkill_gpio_ops, rfkill); + if (!rfkill->rfkill_dev) + goto fail_shutdown; + + ret = rfkill_register(rfkill->rfkill_dev); + if (ret < 0) + goto fail_rfkill; + + platform_set_drvdata(pdev, rfkill); + + dev_info(&pdev->dev, "%s device registered.\n", pdata->name); + + return 0; + +fail_rfkill: + rfkill_destroy(rfkill->rfkill_dev); +fail_shutdown: + if (gpio_is_valid(pdata->shutdown_gpio)) + gpio_free(pdata->shutdown_gpio); +fail_reset: + if (gpio_is_valid(pdata->reset_gpio)) + gpio_free(pdata->reset_gpio); +fail_clock: + if (rfkill->pwr_clk) + clk_put(rfkill->pwr_clk); +fail_shutdown_name: + kfree(rfkill->shutdown_name); +fail_reset_name: + kfree(rfkill->reset_name); +fail_alloc: + kfree(rfkill); + + return ret; +} + +static int rfkill_gpio_remove(struct platform_device *pdev) +{ + struct rfkill_gpio_data *rfkill = platform_get_drvdata(pdev); + + rfkill_unregister(rfkill->rfkill_dev); + rfkill_destroy(rfkill->rfkill_dev); + if (gpio_is_valid(rfkill->pdata->shutdown_gpio)) + gpio_free(rfkill->pdata->shutdown_gpio); + if (gpio_is_valid(rfkill->pdata->reset_gpio)) + gpio_free(rfkill->pdata->reset_gpio); + if (rfkill->pwr_clk && PWR_CLK_ENABLED(rfkill)) + clk_disable(rfkill->pwr_clk); + if (rfkill->pwr_clk) + clk_put(rfkill->pwr_clk); + kfree(rfkill->shutdown_name); + kfree(rfkill->reset_name); + kfree(rfkill); + + return 0; +} + +static struct platform_driver rfkill_gpio_driver = { + .probe = rfkill_gpio_probe, + .remove = __devexit_p(rfkill_gpio_remove), + .driver = { + .name = "rfkill_gpio", + .owner = THIS_MODULE, + }, +}; + +static int __init rfkill_gpio_init(void) +{ + return platform_driver_register(&rfkill_gpio_driver); +} + +static void __exit rfkill_gpio_exit(void) +{ + platform_driver_unregister(&rfkill_gpio_driver); +} + +module_init(rfkill_gpio_init); +module_exit(rfkill_gpio_exit); + +MODULE_DESCRIPTION("gpio rfkill"); +MODULE_AUTHOR("NVIDIA"); +MODULE_LICENSE("GPL"); diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c index 7ef87f9eb67..b6ea6afa55b 100644 --- a/net/sched/sch_sfq.c +++ b/net/sched/sch_sfq.c @@ -361,7 +361,7 @@ sfq_enqueue(struct sk_buff *skb, struct Qdisc *sch) { struct sfq_sched_data *q = qdisc_priv(sch); unsigned int hash; - sfq_index x; + sfq_index x, qlen; struct sfq_slot *slot; int uninitialized_var(ret); @@ -405,20 +405,12 @@ sfq_enqueue(struct sk_buff *skb, struct Qdisc *sch) if (++sch->q.qlen <= q->limit) return NET_XMIT_SUCCESS; + qlen = slot->qlen; sfq_drop(sch); - return NET_XMIT_CN; -} - -static struct sk_buff * -sfq_peek(struct Qdisc *sch) -{ - struct sfq_sched_data *q = qdisc_priv(sch); - - /* No active slots */ - if (q->tail == NULL) - return NULL; - - return q->slots[q->tail->next].skblist_next; + /* Return Congestion Notification only if we dropped a packet + * from this flow. + */ + return (qlen != slot->qlen) ? NET_XMIT_CN : NET_XMIT_SUCCESS; } static struct sk_buff * @@ -702,7 +694,7 @@ static struct Qdisc_ops sfq_qdisc_ops __read_mostly = { .priv_size = sizeof(struct sfq_sched_data), .enqueue = sfq_enqueue, .dequeue = sfq_dequeue, - .peek = sfq_peek, + .peek = qdisc_peek_dequeued, .drop = sfq_drop, .init = sfq_init, .reset = sfq_reset, diff --git a/net/sctp/associola.c b/net/sctp/associola.c index 1a21c571aa0..4a62888f2e4 100644 --- a/net/sctp/associola.c +++ b/net/sctp/associola.c @@ -64,6 +64,7 @@ /* Forward declarations for internal functions. */ static void sctp_assoc_bh_rcv(struct work_struct *work); static void sctp_assoc_free_asconf_acks(struct sctp_association *asoc); +static void sctp_assoc_free_asconf_queue(struct sctp_association *asoc); /* Keep track of the new idr low so that we don't re-use association id * numbers too fast. It is protected by they idr spin lock is in the @@ -443,12 +444,7 @@ void sctp_association_free(struct sctp_association *asoc) asoc->peer.transport_count = 0; - /* Free any cached ASCONF_ACK chunk. */ - sctp_assoc_free_asconf_acks(asoc); - - /* Free any cached ASCONF chunk. */ - if (asoc->addip_last_asconf) - sctp_chunk_free(asoc->addip_last_asconf); + sctp_asconf_queue_teardown(asoc); /* AUTH - Free the endpoint shared keys */ sctp_auth_destroy_keys(&asoc->endpoint_shared_keys); @@ -1578,6 +1574,18 @@ retry: return error; } +/* Free the ASCONF queue */ +static void sctp_assoc_free_asconf_queue(struct sctp_association *asoc) +{ + struct sctp_chunk *asconf; + struct sctp_chunk *tmp; + + list_for_each_entry_safe(asconf, tmp, &asoc->addip_chunk_list, list) { + list_del_init(&asconf->list); + sctp_chunk_free(asconf); + } +} + /* Free asconf_ack cache */ static void sctp_assoc_free_asconf_acks(struct sctp_association *asoc) { @@ -1630,3 +1638,16 @@ struct sctp_chunk *sctp_assoc_lookup_asconf_ack( return NULL; } + +void sctp_asconf_queue_teardown(struct sctp_association *asoc) +{ + /* Free any cached ASCONF_ACK chunk. */ + sctp_assoc_free_asconf_acks(asoc); + + /* Free the ASCONF queue. */ + sctp_assoc_free_asconf_queue(asoc); + + /* Free any cached ASCONF chunk. */ + if (asoc->addip_last_asconf) + sctp_chunk_free(asoc->addip_last_asconf); +} diff --git a/net/sctp/proc.c b/net/sctp/proc.c index 61aacfbbaa9..05a6ce21471 100644 --- a/net/sctp/proc.c +++ b/net/sctp/proc.c @@ -212,7 +212,7 @@ static int sctp_eps_seq_show(struct seq_file *seq, void *v) sctp_for_each_hentry(epb, node, &head->chain) { ep = sctp_ep(epb); sk = epb->sk; - seq_printf(seq, "%8p %8p %-3d %-3d %-4d %-5d %5d %5lu ", ep, sk, + seq_printf(seq, "%8pK %8pK %-3d %-3d %-4d %-5d %5d %5lu ", ep, sk, sctp_sk(sk)->type, sk->sk_state, hash, epb->bind_addr.port, sock_i_uid(sk), sock_i_ino(sk)); @@ -316,7 +316,7 @@ static int sctp_assocs_seq_show(struct seq_file *seq, void *v) assoc = sctp_assoc(epb); sk = epb->sk; seq_printf(seq, - "%8p %8p %-3d %-3d %-2d %-4d " + "%8pK %8pK %-3d %-3d %-2d %-4d " "%4d %8d %8d %7d %5lu %-5d %5d ", assoc, sk, sctp_sk(sk)->type, sk->sk_state, assoc->state, hash, diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c index d612ca1ca6c..534c2e5feb0 100644 --- a/net/sctp/sm_sideeffect.c +++ b/net/sctp/sm_sideeffect.c @@ -1670,6 +1670,9 @@ static int sctp_cmd_interpreter(sctp_event_t event_type, case SCTP_CMD_SEND_NEXT_ASCONF: sctp_cmd_send_asconf(asoc); break; + case SCTP_CMD_PURGE_ASCONF_QUEUE: + sctp_asconf_queue_teardown(asoc); + break; default: pr_warn("Impossible command: %u, %p\n", cmd->verb, cmd->obj.ptr); diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c index 7f4a4f8368e..a297283154d 100644 --- a/net/sctp/sm_statefuns.c +++ b/net/sctp/sm_statefuns.c @@ -1718,11 +1718,21 @@ static sctp_disposition_t sctp_sf_do_dupcook_a(const struct sctp_endpoint *ep, return SCTP_DISPOSITION_CONSUME; } - /* For now, fail any unsent/unacked data. Consider the optional - * choice of resending of this data. + /* For now, stop pending T3-rtx and SACK timers, fail any unsent/unacked + * data. Consider the optional choice of resending of this data. */ + sctp_add_cmd_sf(commands, SCTP_CMD_T3_RTX_TIMERS_STOP, SCTP_NULL()); + sctp_add_cmd_sf(commands, SCTP_CMD_TIMER_STOP, + SCTP_TO(SCTP_EVENT_TIMEOUT_SACK)); sctp_add_cmd_sf(commands, SCTP_CMD_PURGE_OUTQUEUE, SCTP_NULL()); + /* Stop pending T4-rto timer, teardown ASCONF queue, ASCONF-ACK queue + * and ASCONF-ACK cache. + */ + sctp_add_cmd_sf(commands, SCTP_CMD_TIMER_STOP, + SCTP_TO(SCTP_EVENT_TIMEOUT_T4_RTO)); + sctp_add_cmd_sf(commands, SCTP_CMD_PURGE_ASCONF_QUEUE, SCTP_NULL()); + repl = sctp_make_cookie_ack(new_asoc, chunk); if (!repl) goto nomem; diff --git a/net/sunrpc/auth.c b/net/sunrpc/auth.c index 67e31276682..cd6e4aa19db 100644 --- a/net/sunrpc/auth.c +++ b/net/sunrpc/auth.c @@ -326,10 +326,12 @@ rpcauth_prune_expired(struct list_head *free, int nr_to_scan) * Run memory cache shrinker. */ static int -rpcauth_cache_shrinker(struct shrinker *shrink, int nr_to_scan, gfp_t gfp_mask) +rpcauth_cache_shrinker(struct shrinker *shrink, struct shrink_control *sc) { LIST_HEAD(free); int res; + int nr_to_scan = sc->nr_to_scan; + gfp_t gfp_mask = sc->gfp_mask; if ((gfp_mask & GFP_KERNEL) != GFP_KERNEL) return (nr_to_scan == 0) ? 0 : -1; diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c index 8d83f9d4871..b84d7395535 100644 --- a/net/sunrpc/clnt.c +++ b/net/sunrpc/clnt.c @@ -13,10 +13,6 @@ * and need to be refreshed, or when a packet was damaged in transit. * This may be have to be moved to the VFS layer. * - * NB: BSD uses a more intelligent approach to guessing when a request - * or reply has been lost by keeping the RTO estimate for each procedure. - * We currently make do with a constant timeout value. - * * Copyright (C) 1992,1993 Rick Sladkey <jrs@world.std.com> * Copyright (C) 1995,1996 Olaf Kirch <okir@monad.swb.de> */ @@ -32,7 +28,9 @@ #include <linux/slab.h> #include <linux/utsname.h> #include <linux/workqueue.h> +#include <linux/in.h> #include <linux/in6.h> +#include <linux/un.h> #include <linux/sunrpc/clnt.h> #include <linux/sunrpc/rpc_pipe_fs.h> @@ -298,22 +296,27 @@ struct rpc_clnt *rpc_create(struct rpc_create_args *args) * up a string representation of the passed-in address. */ if (args->servername == NULL) { + struct sockaddr_un *sun = + (struct sockaddr_un *)args->address; + struct sockaddr_in *sin = + (struct sockaddr_in *)args->address; + struct sockaddr_in6 *sin6 = + (struct sockaddr_in6 *)args->address; + servername[0] = '\0'; switch (args->address->sa_family) { - case AF_INET: { - struct sockaddr_in *sin = - (struct sockaddr_in *)args->address; + case AF_LOCAL: + snprintf(servername, sizeof(servername), "%s", + sun->sun_path); + break; + case AF_INET: snprintf(servername, sizeof(servername), "%pI4", &sin->sin_addr.s_addr); break; - } - case AF_INET6: { - struct sockaddr_in6 *sin = - (struct sockaddr_in6 *)args->address; + case AF_INET6: snprintf(servername, sizeof(servername), "%pI6", - &sin->sin6_addr); + &sin6->sin6_addr); break; - } default: /* caller wants default server name, but * address family isn't recognized. */ diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c index c652e4cc9fe..9a80a922c52 100644 --- a/net/sunrpc/rpcb_clnt.c +++ b/net/sunrpc/rpcb_clnt.c @@ -16,6 +16,7 @@ #include <linux/types.h> #include <linux/socket.h> +#include <linux/un.h> #include <linux/in.h> #include <linux/in6.h> #include <linux/kernel.h> @@ -32,6 +33,8 @@ # define RPCDBG_FACILITY RPCDBG_BIND #endif +#define RPCBIND_SOCK_PATHNAME "/var/run/rpcbind.sock" + #define RPCBIND_PROGRAM (100000u) #define RPCBIND_PORT (111u) @@ -158,20 +161,69 @@ static void rpcb_map_release(void *data) kfree(map); } -static const struct sockaddr_in rpcb_inaddr_loopback = { - .sin_family = AF_INET, - .sin_addr.s_addr = htonl(INADDR_LOOPBACK), - .sin_port = htons(RPCBIND_PORT), -}; +/* + * Returns zero on success, otherwise a negative errno value + * is returned. + */ +static int rpcb_create_local_unix(void) +{ + static const struct sockaddr_un rpcb_localaddr_rpcbind = { + .sun_family = AF_LOCAL, + .sun_path = RPCBIND_SOCK_PATHNAME, + }; + struct rpc_create_args args = { + .net = &init_net, + .protocol = XPRT_TRANSPORT_LOCAL, + .address = (struct sockaddr *)&rpcb_localaddr_rpcbind, + .addrsize = sizeof(rpcb_localaddr_rpcbind), + .servername = "localhost", + .program = &rpcb_program, + .version = RPCBVERS_2, + .authflavor = RPC_AUTH_NULL, + }; + struct rpc_clnt *clnt, *clnt4; + int result = 0; + + /* + * Because we requested an RPC PING at transport creation time, + * this works only if the user space portmapper is rpcbind, and + * it's listening on AF_LOCAL on the named socket. + */ + clnt = rpc_create(&args); + if (IS_ERR(clnt)) { + dprintk("RPC: failed to create AF_LOCAL rpcbind " + "client (errno %ld).\n", PTR_ERR(clnt)); + result = -PTR_ERR(clnt); + goto out; + } + + clnt4 = rpc_bind_new_program(clnt, &rpcb_program, RPCBVERS_4); + if (IS_ERR(clnt4)) { + dprintk("RPC: failed to bind second program to " + "rpcbind v4 client (errno %ld).\n", + PTR_ERR(clnt4)); + clnt4 = NULL; + } + + /* Protected by rpcb_create_local_mutex */ + rpcb_local_clnt = clnt; + rpcb_local_clnt4 = clnt4; -static DEFINE_MUTEX(rpcb_create_local_mutex); +out: + return result; +} /* * Returns zero on success, otherwise a negative errno value * is returned. */ -static int rpcb_create_local(void) +static int rpcb_create_local_net(void) { + static const struct sockaddr_in rpcb_inaddr_loopback = { + .sin_family = AF_INET, + .sin_addr.s_addr = htonl(INADDR_LOOPBACK), + .sin_port = htons(RPCBIND_PORT), + }; struct rpc_create_args args = { .net = &init_net, .protocol = XPRT_TRANSPORT_TCP, @@ -186,13 +238,6 @@ static int rpcb_create_local(void) struct rpc_clnt *clnt, *clnt4; int result = 0; - if (rpcb_local_clnt) - return result; - - mutex_lock(&rpcb_create_local_mutex); - if (rpcb_local_clnt) - goto out; - clnt = rpc_create(&args); if (IS_ERR(clnt)) { dprintk("RPC: failed to create local rpcbind " @@ -214,10 +259,34 @@ static int rpcb_create_local(void) clnt4 = NULL; } + /* Protected by rpcb_create_local_mutex */ rpcb_local_clnt = clnt; rpcb_local_clnt4 = clnt4; out: + return result; +} + +/* + * Returns zero on success, otherwise a negative errno value + * is returned. + */ +static int rpcb_create_local(void) +{ + static DEFINE_MUTEX(rpcb_create_local_mutex); + int result = 0; + + if (rpcb_local_clnt) + return result; + + mutex_lock(&rpcb_create_local_mutex); + if (rpcb_local_clnt) + goto out; + + if (rpcb_create_local_unix() != 0) + result = rpcb_create_local_net(); + +out: mutex_unlock(&rpcb_create_local_mutex); return result; } diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c index 08e05a8ce02..2b90292e950 100644 --- a/net/sunrpc/svc.c +++ b/net/sunrpc/svc.c @@ -942,6 +942,8 @@ static void svc_unregister(const struct svc_serv *serv) if (progp->pg_vers[i]->vs_hidden) continue; + dprintk("svc: attempting to unregister %sv%u\n", + progp->pg_name, i); __svc_unregister(progp->pg_prog, i, progp->pg_name); } } diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c index b7d435c3f19..af04f779ce9 100644 --- a/net/sunrpc/svcsock.c +++ b/net/sunrpc/svcsock.c @@ -387,6 +387,33 @@ static int svc_recvfrom(struct svc_rqst *rqstp, struct kvec *iov, int nr, return len; } +static int svc_partial_recvfrom(struct svc_rqst *rqstp, + struct kvec *iov, int nr, + int buflen, unsigned int base) +{ + size_t save_iovlen; + void __user *save_iovbase; + unsigned int i; + int ret; + + if (base == 0) + return svc_recvfrom(rqstp, iov, nr, buflen); + + for (i = 0; i < nr; i++) { + if (iov[i].iov_len > base) + break; + base -= iov[i].iov_len; + } + save_iovlen = iov[i].iov_len; + save_iovbase = iov[i].iov_base; + iov[i].iov_len -= base; + iov[i].iov_base += base; + ret = svc_recvfrom(rqstp, &iov[i], nr - i, buflen); + iov[i].iov_len = save_iovlen; + iov[i].iov_base = save_iovbase; + return ret; +} + /* * Set socket snd and rcv buffer lengths */ @@ -409,7 +436,6 @@ static void svc_sock_setbufsize(struct socket *sock, unsigned int snd, lock_sock(sock->sk); sock->sk->sk_sndbuf = snd * 2; sock->sk->sk_rcvbuf = rcv * 2; - sock->sk->sk_userlocks |= SOCK_SNDBUF_LOCK|SOCK_RCVBUF_LOCK; sock->sk->sk_write_space(sock->sk); release_sock(sock->sk); #endif @@ -884,6 +910,56 @@ failed: return NULL; } +static unsigned int svc_tcp_restore_pages(struct svc_sock *svsk, struct svc_rqst *rqstp) +{ + unsigned int i, len, npages; + + if (svsk->sk_tcplen <= sizeof(rpc_fraghdr)) + return 0; + len = svsk->sk_tcplen - sizeof(rpc_fraghdr); + npages = (len + PAGE_SIZE - 1) >> PAGE_SHIFT; + for (i = 0; i < npages; i++) { + if (rqstp->rq_pages[i] != NULL) + put_page(rqstp->rq_pages[i]); + BUG_ON(svsk->sk_pages[i] == NULL); + rqstp->rq_pages[i] = svsk->sk_pages[i]; + svsk->sk_pages[i] = NULL; + } + rqstp->rq_arg.head[0].iov_base = page_address(rqstp->rq_pages[0]); + return len; +} + +static void svc_tcp_save_pages(struct svc_sock *svsk, struct svc_rqst *rqstp) +{ + unsigned int i, len, npages; + + if (svsk->sk_tcplen <= sizeof(rpc_fraghdr)) + return; + len = svsk->sk_tcplen - sizeof(rpc_fraghdr); + npages = (len + PAGE_SIZE - 1) >> PAGE_SHIFT; + for (i = 0; i < npages; i++) { + svsk->sk_pages[i] = rqstp->rq_pages[i]; + rqstp->rq_pages[i] = NULL; + } +} + +static void svc_tcp_clear_pages(struct svc_sock *svsk) +{ + unsigned int i, len, npages; + + if (svsk->sk_tcplen <= sizeof(rpc_fraghdr)) + goto out; + len = svsk->sk_tcplen - sizeof(rpc_fraghdr); + npages = (len + PAGE_SIZE - 1) >> PAGE_SHIFT; + for (i = 0; i < npages; i++) { + BUG_ON(svsk->sk_pages[i] == NULL); + put_page(svsk->sk_pages[i]); + svsk->sk_pages[i] = NULL; + } +out: + svsk->sk_tcplen = 0; +} + /* * Receive data. * If we haven't gotten the record length yet, get the next four bytes. @@ -893,31 +969,15 @@ failed: static int svc_tcp_recv_record(struct svc_sock *svsk, struct svc_rqst *rqstp) { struct svc_serv *serv = svsk->sk_xprt.xpt_server; + unsigned int want; int len; - if (test_and_clear_bit(XPT_CHNGBUF, &svsk->sk_xprt.xpt_flags)) - /* sndbuf needs to have room for one request - * per thread, otherwise we can stall even when the - * network isn't a bottleneck. - * - * We count all threads rather than threads in a - * particular pool, which provides an upper bound - * on the number of threads which will access the socket. - * - * rcvbuf just needs to be able to hold a few requests. - * Normally they will be removed from the queue - * as soon a a complete request arrives. - */ - svc_sock_setbufsize(svsk->sk_sock, - (serv->sv_nrthreads+3) * serv->sv_max_mesg, - 3 * serv->sv_max_mesg); - clear_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags); if (svsk->sk_tcplen < sizeof(rpc_fraghdr)) { - int want = sizeof(rpc_fraghdr) - svsk->sk_tcplen; struct kvec iov; + want = sizeof(rpc_fraghdr) - svsk->sk_tcplen; iov.iov_base = ((char *) &svsk->sk_reclen) + svsk->sk_tcplen; iov.iov_len = want; if ((len = svc_recvfrom(rqstp, &iov, 1, want)) < 0) @@ -927,7 +987,7 @@ static int svc_tcp_recv_record(struct svc_sock *svsk, struct svc_rqst *rqstp) if (len < want) { dprintk("svc: short recvfrom while reading record " "length (%d of %d)\n", len, want); - goto err_again; /* record header not complete */ + return -EAGAIN; } svsk->sk_reclen = ntohl(svsk->sk_reclen); @@ -954,83 +1014,75 @@ static int svc_tcp_recv_record(struct svc_sock *svsk, struct svc_rqst *rqstp) } } - /* Check whether enough data is available */ - len = svc_recv_available(svsk); - if (len < 0) - goto error; + if (svsk->sk_reclen < 8) + goto err_delete; /* client is nuts. */ - if (len < svsk->sk_reclen) { - dprintk("svc: incomplete TCP record (%d of %d)\n", - len, svsk->sk_reclen); - goto err_again; /* record not complete */ - } len = svsk->sk_reclen; - set_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags); return len; - error: - if (len == -EAGAIN) - dprintk("RPC: TCP recv_record got EAGAIN\n"); +error: + dprintk("RPC: TCP recv_record got %d\n", len); return len; - err_delete: +err_delete: set_bit(XPT_CLOSE, &svsk->sk_xprt.xpt_flags); - err_again: return -EAGAIN; } -static int svc_process_calldir(struct svc_sock *svsk, struct svc_rqst *rqstp, - struct rpc_rqst **reqpp, struct kvec *vec) +static int receive_cb_reply(struct svc_sock *svsk, struct svc_rqst *rqstp) { + struct rpc_xprt *bc_xprt = svsk->sk_xprt.xpt_bc_xprt; struct rpc_rqst *req = NULL; - u32 *p; - u32 xid; - u32 calldir; - int len; - - len = svc_recvfrom(rqstp, vec, 1, 8); - if (len < 0) - goto error; + struct kvec *src, *dst; + __be32 *p = (__be32 *)rqstp->rq_arg.head[0].iov_base; + __be32 xid; + __be32 calldir; - p = (u32 *)rqstp->rq_arg.head[0].iov_base; xid = *p++; calldir = *p; - if (calldir == 0) { - /* REQUEST is the most common case */ - vec[0] = rqstp->rq_arg.head[0]; - } else { - /* REPLY */ - struct rpc_xprt *bc_xprt = svsk->sk_xprt.xpt_bc_xprt; - - if (bc_xprt) - req = xprt_lookup_rqst(bc_xprt, xid); - - if (!req) { - printk(KERN_NOTICE - "%s: Got unrecognized reply: " - "calldir 0x%x xpt_bc_xprt %p xid %08x\n", - __func__, ntohl(calldir), - bc_xprt, xid); - vec[0] = rqstp->rq_arg.head[0]; - goto out; - } + if (bc_xprt) + req = xprt_lookup_rqst(bc_xprt, xid); - memcpy(&req->rq_private_buf, &req->rq_rcv_buf, - sizeof(struct xdr_buf)); - /* copy the xid and call direction */ - memcpy(req->rq_private_buf.head[0].iov_base, - rqstp->rq_arg.head[0].iov_base, 8); - vec[0] = req->rq_private_buf.head[0]; + if (!req) { + printk(KERN_NOTICE + "%s: Got unrecognized reply: " + "calldir 0x%x xpt_bc_xprt %p xid %08x\n", + __func__, ntohl(calldir), + bc_xprt, xid); + return -EAGAIN; } - out: - vec[0].iov_base += 8; - vec[0].iov_len -= 8; - len = svsk->sk_reclen - 8; - error: - *reqpp = req; - return len; + + memcpy(&req->rq_private_buf, &req->rq_rcv_buf, sizeof(struct xdr_buf)); + /* + * XXX!: cheating for now! Only copying HEAD. + * But we know this is good enough for now (in fact, for any + * callback reply in the forseeable future). + */ + dst = &req->rq_private_buf.head[0]; + src = &rqstp->rq_arg.head[0]; + if (dst->iov_len < src->iov_len) + return -EAGAIN; /* whatever; just giving up. */ + memcpy(dst->iov_base, src->iov_base, src->iov_len); + xprt_complete_rqst(req->rq_task, svsk->sk_reclen); + rqstp->rq_arg.len = 0; + return 0; } +static int copy_pages_to_kvecs(struct kvec *vec, struct page **pages, int len) +{ + int i = 0; + int t = 0; + + while (t < len) { + vec[i].iov_base = page_address(pages[i]); + vec[i].iov_len = PAGE_SIZE; + i++; + t += PAGE_SIZE; + } + return i; +} + + /* * Receive data from a TCP socket. */ @@ -1041,8 +1093,10 @@ static int svc_tcp_recvfrom(struct svc_rqst *rqstp) struct svc_serv *serv = svsk->sk_xprt.xpt_server; int len; struct kvec *vec; - int pnum, vlen; - struct rpc_rqst *req = NULL; + unsigned int want, base; + __be32 *p; + __be32 calldir; + int pnum; dprintk("svc: tcp_recv %p data %d conn %d close %d\n", svsk, test_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags), @@ -1053,87 +1107,73 @@ static int svc_tcp_recvfrom(struct svc_rqst *rqstp) if (len < 0) goto error; + base = svc_tcp_restore_pages(svsk, rqstp); + want = svsk->sk_reclen - base; + vec = rqstp->rq_vec; - vec[0] = rqstp->rq_arg.head[0]; - vlen = PAGE_SIZE; - /* - * We have enough data for the whole tcp record. Let's try and read the - * first 8 bytes to get the xid and the call direction. We can use this - * to figure out if this is a call or a reply to a callback. If - * sk_reclen is < 8 (xid and calldir), then this is a malformed packet. - * In that case, don't bother with the calldir and just read the data. - * It will be rejected in svc_process. - */ - if (len >= 8) { - len = svc_process_calldir(svsk, rqstp, &req, vec); - if (len < 0) - goto err_again; - vlen -= 8; - } + pnum = copy_pages_to_kvecs(&vec[0], &rqstp->rq_pages[0], + svsk->sk_reclen); - pnum = 1; - while (vlen < len) { - vec[pnum].iov_base = (req) ? - page_address(req->rq_private_buf.pages[pnum - 1]) : - page_address(rqstp->rq_pages[pnum]); - vec[pnum].iov_len = PAGE_SIZE; - pnum++; - vlen += PAGE_SIZE; - } rqstp->rq_respages = &rqstp->rq_pages[pnum]; /* Now receive data */ - len = svc_recvfrom(rqstp, vec, pnum, len); - if (len < 0) - goto err_again; - - /* - * Account for the 8 bytes we read earlier - */ - len += 8; - - if (req) { - xprt_complete_rqst(req->rq_task, len); - len = 0; - goto out; + len = svc_partial_recvfrom(rqstp, vec, pnum, want, base); + if (len >= 0) + svsk->sk_tcplen += len; + if (len != want) { + if (len < 0 && len != -EAGAIN) + goto err_other; + svc_tcp_save_pages(svsk, rqstp); + dprintk("svc: incomplete TCP record (%d of %d)\n", + svsk->sk_tcplen, svsk->sk_reclen); + goto err_noclose; } - dprintk("svc: TCP complete record (%d bytes)\n", len); - rqstp->rq_arg.len = len; + + rqstp->rq_arg.len = svsk->sk_reclen; rqstp->rq_arg.page_base = 0; - if (len <= rqstp->rq_arg.head[0].iov_len) { - rqstp->rq_arg.head[0].iov_len = len; + if (rqstp->rq_arg.len <= rqstp->rq_arg.head[0].iov_len) { + rqstp->rq_arg.head[0].iov_len = rqstp->rq_arg.len; rqstp->rq_arg.page_len = 0; - } else { - rqstp->rq_arg.page_len = len - rqstp->rq_arg.head[0].iov_len; - } + } else + rqstp->rq_arg.page_len = rqstp->rq_arg.len - rqstp->rq_arg.head[0].iov_len; rqstp->rq_xprt_ctxt = NULL; rqstp->rq_prot = IPPROTO_TCP; -out: + p = (__be32 *)rqstp->rq_arg.head[0].iov_base; + calldir = p[1]; + if (calldir) + len = receive_cb_reply(svsk, rqstp); + /* Reset TCP read info */ svsk->sk_reclen = 0; svsk->sk_tcplen = 0; + /* If we have more data, signal svc_xprt_enqueue() to try again */ + if (svc_recv_available(svsk) > sizeof(rpc_fraghdr)) + set_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags); + + if (len < 0) + goto error; svc_xprt_copy_addrs(rqstp, &svsk->sk_xprt); if (serv->sv_stats) serv->sv_stats->nettcpcnt++; - return len; + dprintk("svc: TCP complete record (%d bytes)\n", rqstp->rq_arg.len); + return rqstp->rq_arg.len; -err_again: - if (len == -EAGAIN) { - dprintk("RPC: TCP recvfrom got EAGAIN\n"); - return len; - } error: - if (len != -EAGAIN) { - printk(KERN_NOTICE "%s: recvfrom returned errno %d\n", - svsk->sk_xprt.xpt_server->sv_name, -len); - set_bit(XPT_CLOSE, &svsk->sk_xprt.xpt_flags); - } + if (len != -EAGAIN) + goto err_other; + dprintk("RPC: TCP recvfrom got EAGAIN\n"); return -EAGAIN; +err_other: + printk(KERN_NOTICE "%s: recvfrom returned errno %d\n", + svsk->sk_xprt.xpt_server->sv_name, -len); + set_bit(XPT_CLOSE, &svsk->sk_xprt.xpt_flags); +err_noclose: + return -EAGAIN; /* record not complete */ } /* @@ -1304,18 +1344,10 @@ static void svc_tcp_init(struct svc_sock *svsk, struct svc_serv *serv) svsk->sk_reclen = 0; svsk->sk_tcplen = 0; + memset(&svsk->sk_pages[0], 0, sizeof(svsk->sk_pages)); tcp_sk(sk)->nonagle |= TCP_NAGLE_OFF; - /* initialise setting must have enough space to - * receive and respond to one request. - * svc_tcp_recvfrom will re-adjust if necessary - */ - svc_sock_setbufsize(svsk->sk_sock, - 3 * svsk->sk_xprt.xpt_server->sv_max_mesg, - 3 * svsk->sk_xprt.xpt_server->sv_max_mesg); - - set_bit(XPT_CHNGBUF, &svsk->sk_xprt.xpt_flags); set_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags); if (sk->sk_state != TCP_ESTABLISHED) set_bit(XPT_CLOSE, &svsk->sk_xprt.xpt_flags); @@ -1379,8 +1411,14 @@ static struct svc_sock *svc_setup_socket(struct svc_serv *serv, /* Initialize the socket */ if (sock->type == SOCK_DGRAM) svc_udp_init(svsk, serv); - else + else { + /* initialise setting must have enough space to + * receive and respond to one request. + */ + svc_sock_setbufsize(svsk->sk_sock, 4 * serv->sv_max_mesg, + 4 * serv->sv_max_mesg); svc_tcp_init(svsk, serv); + } dprintk("svc: svc_setup_socket created %p (inet %p)\n", svsk, svsk->sk_sk); @@ -1562,8 +1600,10 @@ static void svc_tcp_sock_detach(struct svc_xprt *xprt) svc_sock_detach(xprt); - if (!test_bit(XPT_LISTENER, &xprt->xpt_flags)) + if (!test_bit(XPT_LISTENER, &xprt->xpt_flags)) { + svc_tcp_clear_pages(svsk); kernel_sock_shutdown(svsk->sk_sock, SHUT_RDWR); + } } /* diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c index 679cd674b81..f008c14ad34 100644 --- a/net/sunrpc/xdr.c +++ b/net/sunrpc/xdr.c @@ -638,6 +638,25 @@ void xdr_init_decode(struct xdr_stream *xdr, struct xdr_buf *buf, __be32 *p) } EXPORT_SYMBOL_GPL(xdr_init_decode); +/** + * xdr_init_decode - Initialize an xdr_stream for decoding data. + * @xdr: pointer to xdr_stream struct + * @buf: pointer to XDR buffer from which to decode data + * @pages: list of pages to decode into + * @len: length in bytes of buffer in pages + */ +void xdr_init_decode_pages(struct xdr_stream *xdr, struct xdr_buf *buf, + struct page **pages, unsigned int len) +{ + memset(buf, 0, sizeof(*buf)); + buf->pages = pages; + buf->page_len = len; + buf->buflen = len; + buf->len = len; + xdr_init_decode(xdr, buf, NULL); +} +EXPORT_SYMBOL_GPL(xdr_init_decode_pages); + static __be32 * __xdr_inline_decode(struct xdr_stream *xdr, size_t nbytes) { __be32 *p = xdr->p; diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c index 6c014dd3a20..c3c232a88d9 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_transport.c +++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c @@ -695,7 +695,8 @@ static struct svc_xprt *svc_rdma_create(struct svc_serv *serv, return ERR_PTR(-ENOMEM); xprt = &cma_xprt->sc_xprt; - listen_id = rdma_create_id(rdma_listen_handler, cma_xprt, RDMA_PS_TCP); + listen_id = rdma_create_id(rdma_listen_handler, cma_xprt, RDMA_PS_TCP, + IB_QPT_RC); if (IS_ERR(listen_id)) { ret = PTR_ERR(listen_id); dprintk("svcrdma: rdma_create_id failed = %d\n", ret); diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c index d4297dc43dc..80f8da344df 100644 --- a/net/sunrpc/xprtrdma/verbs.c +++ b/net/sunrpc/xprtrdma/verbs.c @@ -387,7 +387,7 @@ rpcrdma_create_id(struct rpcrdma_xprt *xprt, init_completion(&ia->ri_done); - id = rdma_create_id(rpcrdma_conn_upcall, xprt, RDMA_PS_TCP); + id = rdma_create_id(rpcrdma_conn_upcall, xprt, RDMA_PS_TCP, IB_QPT_RC); if (IS_ERR(id)) { rc = PTR_ERR(id); dprintk("RPC: %s: rdma_create_id() failed %i\n", diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index bf005d3c65e..72abb735893 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -19,6 +19,7 @@ */ #include <linux/types.h> +#include <linux/string.h> #include <linux/slab.h> #include <linux/module.h> #include <linux/capability.h> @@ -28,6 +29,7 @@ #include <linux/in.h> #include <linux/net.h> #include <linux/mm.h> +#include <linux/un.h> #include <linux/udp.h> #include <linux/tcp.h> #include <linux/sunrpc/clnt.h> @@ -45,6 +47,9 @@ #include <net/tcp.h> #include "sunrpc.h" + +static void xs_close(struct rpc_xprt *xprt); + /* * xprtsock tunables */ @@ -261,6 +266,11 @@ static inline struct sockaddr *xs_addr(struct rpc_xprt *xprt) return (struct sockaddr *) &xprt->addr; } +static inline struct sockaddr_un *xs_addr_un(struct rpc_xprt *xprt) +{ + return (struct sockaddr_un *) &xprt->addr; +} + static inline struct sockaddr_in *xs_addr_in(struct rpc_xprt *xprt) { return (struct sockaddr_in *) &xprt->addr; @@ -276,23 +286,34 @@ static void xs_format_common_peer_addresses(struct rpc_xprt *xprt) struct sockaddr *sap = xs_addr(xprt); struct sockaddr_in6 *sin6; struct sockaddr_in *sin; + struct sockaddr_un *sun; char buf[128]; - (void)rpc_ntop(sap, buf, sizeof(buf)); - xprt->address_strings[RPC_DISPLAY_ADDR] = kstrdup(buf, GFP_KERNEL); - switch (sap->sa_family) { + case AF_LOCAL: + sun = xs_addr_un(xprt); + strlcpy(buf, sun->sun_path, sizeof(buf)); + xprt->address_strings[RPC_DISPLAY_ADDR] = + kstrdup(buf, GFP_KERNEL); + break; case AF_INET: + (void)rpc_ntop(sap, buf, sizeof(buf)); + xprt->address_strings[RPC_DISPLAY_ADDR] = + kstrdup(buf, GFP_KERNEL); sin = xs_addr_in(xprt); snprintf(buf, sizeof(buf), "%08x", ntohl(sin->sin_addr.s_addr)); break; case AF_INET6: + (void)rpc_ntop(sap, buf, sizeof(buf)); + xprt->address_strings[RPC_DISPLAY_ADDR] = + kstrdup(buf, GFP_KERNEL); sin6 = xs_addr_in6(xprt); snprintf(buf, sizeof(buf), "%pi6", &sin6->sin6_addr); break; default: BUG(); } + xprt->address_strings[RPC_DISPLAY_HEX_ADDR] = kstrdup(buf, GFP_KERNEL); } @@ -495,6 +516,70 @@ static int xs_nospace(struct rpc_task *task) return ret; } +/* + * Construct a stream transport record marker in @buf. + */ +static inline void xs_encode_stream_record_marker(struct xdr_buf *buf) +{ + u32 reclen = buf->len - sizeof(rpc_fraghdr); + rpc_fraghdr *base = buf->head[0].iov_base; + *base = cpu_to_be32(RPC_LAST_STREAM_FRAGMENT | reclen); +} + +/** + * xs_local_send_request - write an RPC request to an AF_LOCAL socket + * @task: RPC task that manages the state of an RPC request + * + * Return values: + * 0: The request has been sent + * EAGAIN: The socket was blocked, please call again later to + * complete the request + * ENOTCONN: Caller needs to invoke connect logic then call again + * other: Some other error occured, the request was not sent + */ +static int xs_local_send_request(struct rpc_task *task) +{ + struct rpc_rqst *req = task->tk_rqstp; + struct rpc_xprt *xprt = req->rq_xprt; + struct sock_xprt *transport = + container_of(xprt, struct sock_xprt, xprt); + struct xdr_buf *xdr = &req->rq_snd_buf; + int status; + + xs_encode_stream_record_marker(&req->rq_snd_buf); + + xs_pktdump("packet data:", + req->rq_svec->iov_base, req->rq_svec->iov_len); + + status = xs_sendpages(transport->sock, NULL, 0, + xdr, req->rq_bytes_sent); + dprintk("RPC: %s(%u) = %d\n", + __func__, xdr->len - req->rq_bytes_sent, status); + if (likely(status >= 0)) { + req->rq_bytes_sent += status; + req->rq_xmit_bytes_sent += status; + if (likely(req->rq_bytes_sent >= req->rq_slen)) { + req->rq_bytes_sent = 0; + return 0; + } + status = -EAGAIN; + } + + switch (status) { + case -EAGAIN: + status = xs_nospace(task); + break; + default: + dprintk("RPC: sendmsg returned unrecognized error %d\n", + -status); + case -EPIPE: + xs_close(xprt); + status = -ENOTCONN; + } + + return status; +} + /** * xs_udp_send_request - write an RPC request to a UDP socket * @task: address of RPC task that manages the state of an RPC request @@ -574,13 +659,6 @@ static void xs_tcp_shutdown(struct rpc_xprt *xprt) kernel_sock_shutdown(sock, SHUT_WR); } -static inline void xs_encode_tcp_record_marker(struct xdr_buf *buf) -{ - u32 reclen = buf->len - sizeof(rpc_fraghdr); - rpc_fraghdr *base = buf->head[0].iov_base; - *base = htonl(RPC_LAST_STREAM_FRAGMENT | reclen); -} - /** * xs_tcp_send_request - write an RPC request to a TCP socket * @task: address of RPC task that manages the state of an RPC request @@ -603,7 +681,7 @@ static int xs_tcp_send_request(struct rpc_task *task) struct xdr_buf *xdr = &req->rq_snd_buf; int status; - xs_encode_tcp_record_marker(&req->rq_snd_buf); + xs_encode_stream_record_marker(&req->rq_snd_buf); xs_pktdump("packet data:", req->rq_svec->iov_base, @@ -785,6 +863,88 @@ static inline struct rpc_xprt *xprt_from_sock(struct sock *sk) return (struct rpc_xprt *) sk->sk_user_data; } +static int xs_local_copy_to_xdr(struct xdr_buf *xdr, struct sk_buff *skb) +{ + struct xdr_skb_reader desc = { + .skb = skb, + .offset = sizeof(rpc_fraghdr), + .count = skb->len - sizeof(rpc_fraghdr), + }; + + if (xdr_partial_copy_from_skb(xdr, 0, &desc, xdr_skb_read_bits) < 0) + return -1; + if (desc.count) + return -1; + return 0; +} + +/** + * xs_local_data_ready - "data ready" callback for AF_LOCAL sockets + * @sk: socket with data to read + * @len: how much data to read + * + * Currently this assumes we can read the whole reply in a single gulp. + */ +static void xs_local_data_ready(struct sock *sk, int len) +{ + struct rpc_task *task; + struct rpc_xprt *xprt; + struct rpc_rqst *rovr; + struct sk_buff *skb; + int err, repsize, copied; + u32 _xid; + __be32 *xp; + + read_lock_bh(&sk->sk_callback_lock); + dprintk("RPC: %s...\n", __func__); + xprt = xprt_from_sock(sk); + if (xprt == NULL) + goto out; + + skb = skb_recv_datagram(sk, 0, 1, &err); + if (skb == NULL) + goto out; + + if (xprt->shutdown) + goto dropit; + + repsize = skb->len - sizeof(rpc_fraghdr); + if (repsize < 4) { + dprintk("RPC: impossible RPC reply size %d\n", repsize); + goto dropit; + } + + /* Copy the XID from the skb... */ + xp = skb_header_pointer(skb, sizeof(rpc_fraghdr), sizeof(_xid), &_xid); + if (xp == NULL) + goto dropit; + + /* Look up and lock the request corresponding to the given XID */ + spin_lock(&xprt->transport_lock); + rovr = xprt_lookup_rqst(xprt, *xp); + if (!rovr) + goto out_unlock; + task = rovr->rq_task; + + copied = rovr->rq_private_buf.buflen; + if (copied > repsize) + copied = repsize; + + if (xs_local_copy_to_xdr(&rovr->rq_private_buf, skb)) { + dprintk("RPC: sk_buff copy failed\n"); + goto out_unlock; + } + + xprt_complete_rqst(task, copied); + + out_unlock: + spin_unlock(&xprt->transport_lock); + dropit: + skb_free_datagram(sk, skb); + out: + read_unlock_bh(&sk->sk_callback_lock); +} + /** * xs_udp_data_ready - "data ready" callback for UDP sockets * @sk: socket with data to read @@ -1344,7 +1504,6 @@ static void xs_tcp_state_change(struct sock *sk) case TCP_CLOSE_WAIT: /* The server initiated a shutdown of the socket */ xprt_force_disconnect(xprt); - case TCP_SYN_SENT: xprt->connect_cookie++; case TCP_CLOSING: /* @@ -1571,11 +1730,31 @@ static int xs_bind(struct sock_xprt *transport, struct socket *sock) return err; } +/* + * We don't support autobind on AF_LOCAL sockets + */ +static void xs_local_rpcbind(struct rpc_task *task) +{ + xprt_set_bound(task->tk_xprt); +} + +static void xs_local_set_port(struct rpc_xprt *xprt, unsigned short port) +{ +} #ifdef CONFIG_DEBUG_LOCK_ALLOC static struct lock_class_key xs_key[2]; static struct lock_class_key xs_slock_key[2]; +static inline void xs_reclassify_socketu(struct socket *sock) +{ + struct sock *sk = sock->sk; + + BUG_ON(sock_owned_by_user(sk)); + sock_lock_init_class_and_name(sk, "slock-AF_LOCAL-RPC", + &xs_slock_key[1], "sk_lock-AF_LOCAL-RPC", &xs_key[1]); +} + static inline void xs_reclassify_socket4(struct socket *sock) { struct sock *sk = sock->sk; @@ -1597,6 +1776,9 @@ static inline void xs_reclassify_socket6(struct socket *sock) static inline void xs_reclassify_socket(int family, struct socket *sock) { switch (family) { + case AF_LOCAL: + xs_reclassify_socketu(sock); + break; case AF_INET: xs_reclassify_socket4(sock); break; @@ -1606,6 +1788,10 @@ static inline void xs_reclassify_socket(int family, struct socket *sock) } } #else +static inline void xs_reclassify_socketu(struct socket *sock) +{ +} + static inline void xs_reclassify_socket4(struct socket *sock) { } @@ -1644,6 +1830,94 @@ out: return ERR_PTR(err); } +static int xs_local_finish_connecting(struct rpc_xprt *xprt, + struct socket *sock) +{ + struct sock_xprt *transport = container_of(xprt, struct sock_xprt, + xprt); + + if (!transport->inet) { + struct sock *sk = sock->sk; + + write_lock_bh(&sk->sk_callback_lock); + + xs_save_old_callbacks(transport, sk); + + sk->sk_user_data = xprt; + sk->sk_data_ready = xs_local_data_ready; + sk->sk_write_space = xs_udp_write_space; + sk->sk_error_report = xs_error_report; + sk->sk_allocation = GFP_ATOMIC; + + xprt_clear_connected(xprt); + + /* Reset to new socket */ + transport->sock = sock; + transport->inet = sk; + + write_unlock_bh(&sk->sk_callback_lock); + } + + /* Tell the socket layer to start connecting... */ + xprt->stat.connect_count++; + xprt->stat.connect_start = jiffies; + return kernel_connect(sock, xs_addr(xprt), xprt->addrlen, 0); +} + +/** + * xs_local_setup_socket - create AF_LOCAL socket, connect to a local endpoint + * @xprt: RPC transport to connect + * @transport: socket transport to connect + * @create_sock: function to create a socket of the correct type + * + * Invoked by a work queue tasklet. + */ +static void xs_local_setup_socket(struct work_struct *work) +{ + struct sock_xprt *transport = + container_of(work, struct sock_xprt, connect_worker.work); + struct rpc_xprt *xprt = &transport->xprt; + struct socket *sock; + int status = -EIO; + + if (xprt->shutdown) + goto out; + + clear_bit(XPRT_CONNECTION_ABORT, &xprt->state); + status = __sock_create(xprt->xprt_net, AF_LOCAL, + SOCK_STREAM, 0, &sock, 1); + if (status < 0) { + dprintk("RPC: can't create AF_LOCAL " + "transport socket (%d).\n", -status); + goto out; + } + xs_reclassify_socketu(sock); + + dprintk("RPC: worker connecting xprt %p via AF_LOCAL to %s\n", + xprt, xprt->address_strings[RPC_DISPLAY_ADDR]); + + status = xs_local_finish_connecting(xprt, sock); + switch (status) { + case 0: + dprintk("RPC: xprt %p connected to %s\n", + xprt, xprt->address_strings[RPC_DISPLAY_ADDR]); + xprt_set_connected(xprt); + break; + case -ENOENT: + dprintk("RPC: xprt %p: socket %s does not exist\n", + xprt, xprt->address_strings[RPC_DISPLAY_ADDR]); + break; + default: + printk(KERN_ERR "%s: unhandled error (%d) connecting to %s\n", + __func__, -status, + xprt->address_strings[RPC_DISPLAY_ADDR]); + } + +out: + xprt_clear_connecting(xprt); + xprt_wake_pending_tasks(xprt, status); +} + static void xs_udp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock) { struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt); @@ -1758,6 +2032,7 @@ static void xs_tcp_reuse_connection(struct sock_xprt *transport) static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock) { struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt); + int ret = -ENOTCONN; if (!transport->inet) { struct sock *sk = sock->sk; @@ -1789,12 +2064,22 @@ static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock) } if (!xprt_bound(xprt)) - return -ENOTCONN; + goto out; /* Tell the socket layer to start connecting... */ xprt->stat.connect_count++; xprt->stat.connect_start = jiffies; - return kernel_connect(sock, xs_addr(xprt), xprt->addrlen, O_NONBLOCK); + ret = kernel_connect(sock, xs_addr(xprt), xprt->addrlen, O_NONBLOCK); + switch (ret) { + case 0: + case -EINPROGRESS: + /* SYN_SENT! */ + xprt->connect_cookie++; + if (xprt->reestablish_timeout < XS_TCP_INIT_REEST_TO) + xprt->reestablish_timeout = XS_TCP_INIT_REEST_TO; + } +out: + return ret; } /** @@ -1917,6 +2202,32 @@ static void xs_connect(struct rpc_task *task) } /** + * xs_local_print_stats - display AF_LOCAL socket-specifc stats + * @xprt: rpc_xprt struct containing statistics + * @seq: output file + * + */ +static void xs_local_print_stats(struct rpc_xprt *xprt, struct seq_file *seq) +{ + long idle_time = 0; + + if (xprt_connected(xprt)) + idle_time = (long)(jiffies - xprt->last_used) / HZ; + + seq_printf(seq, "\txprt:\tlocal %lu %lu %lu %ld %lu %lu %lu " + "%llu %llu\n", + xprt->stat.bind_count, + xprt->stat.connect_count, + xprt->stat.connect_time, + idle_time, + xprt->stat.sends, + xprt->stat.recvs, + xprt->stat.bad_xids, + xprt->stat.req_u, + xprt->stat.bklog_u); +} + +/** * xs_udp_print_stats - display UDP socket-specifc stats * @xprt: rpc_xprt struct containing statistics * @seq: output file @@ -2014,10 +2325,7 @@ static int bc_sendto(struct rpc_rqst *req) unsigned long headoff; unsigned long tailoff; - /* - * Set up the rpc header and record marker stuff - */ - xs_encode_tcp_record_marker(xbufp); + xs_encode_stream_record_marker(xbufp); tailoff = (unsigned long)xbufp->tail[0].iov_base & ~PAGE_MASK; headoff = (unsigned long)xbufp->head[0].iov_base & ~PAGE_MASK; @@ -2089,6 +2397,21 @@ static void bc_destroy(struct rpc_xprt *xprt) { } +static struct rpc_xprt_ops xs_local_ops = { + .reserve_xprt = xprt_reserve_xprt, + .release_xprt = xs_tcp_release_xprt, + .rpcbind = xs_local_rpcbind, + .set_port = xs_local_set_port, + .connect = xs_connect, + .buf_alloc = rpc_malloc, + .buf_free = rpc_free, + .send_request = xs_local_send_request, + .set_retrans_timeout = xprt_set_retrans_timeout_def, + .close = xs_close, + .destroy = xs_destroy, + .print_stats = xs_local_print_stats, +}; + static struct rpc_xprt_ops xs_udp_ops = { .set_buffer_size = xs_udp_set_buffer_size, .reserve_xprt = xprt_reserve_xprt_cong, @@ -2150,6 +2473,8 @@ static int xs_init_anyaddr(const int family, struct sockaddr *sap) }; switch (family) { + case AF_LOCAL: + break; case AF_INET: memcpy(sap, &sin, sizeof(sin)); break; @@ -2197,6 +2522,70 @@ static struct rpc_xprt *xs_setup_xprt(struct xprt_create *args, return xprt; } +static const struct rpc_timeout xs_local_default_timeout = { + .to_initval = 10 * HZ, + .to_maxval = 10 * HZ, + .to_retries = 2, +}; + +/** + * xs_setup_local - Set up transport to use an AF_LOCAL socket + * @args: rpc transport creation arguments + * + * AF_LOCAL is a "tpi_cots_ord" transport, just like TCP + */ +static struct rpc_xprt *xs_setup_local(struct xprt_create *args) +{ + struct sockaddr_un *sun = (struct sockaddr_un *)args->dstaddr; + struct sock_xprt *transport; + struct rpc_xprt *xprt; + struct rpc_xprt *ret; + + xprt = xs_setup_xprt(args, xprt_tcp_slot_table_entries); + if (IS_ERR(xprt)) + return xprt; + transport = container_of(xprt, struct sock_xprt, xprt); + + xprt->prot = 0; + xprt->tsh_size = sizeof(rpc_fraghdr) / sizeof(u32); + xprt->max_payload = RPC_MAX_FRAGMENT_SIZE; + + xprt->bind_timeout = XS_BIND_TO; + xprt->reestablish_timeout = XS_TCP_INIT_REEST_TO; + xprt->idle_timeout = XS_IDLE_DISC_TO; + + xprt->ops = &xs_local_ops; + xprt->timeout = &xs_local_default_timeout; + + switch (sun->sun_family) { + case AF_LOCAL: + if (sun->sun_path[0] != '/') { + dprintk("RPC: bad AF_LOCAL address: %s\n", + sun->sun_path); + ret = ERR_PTR(-EINVAL); + goto out_err; + } + xprt_set_bound(xprt); + INIT_DELAYED_WORK(&transport->connect_worker, + xs_local_setup_socket); + xs_format_peer_addresses(xprt, "local", RPCBIND_NETID_LOCAL); + break; + default: + ret = ERR_PTR(-EAFNOSUPPORT); + goto out_err; + } + + dprintk("RPC: set up xprt to %s via AF_LOCAL\n", + xprt->address_strings[RPC_DISPLAY_ADDR]); + + if (try_module_get(THIS_MODULE)) + return xprt; + ret = ERR_PTR(-EINVAL); +out_err: + xprt_free(xprt); + return ret; +} + static const struct rpc_timeout xs_udp_default_timeout = { .to_initval = 5 * HZ, .to_maxval = 30 * HZ, @@ -2438,6 +2827,14 @@ out_err: return ret; } +static struct xprt_class xs_local_transport = { + .list = LIST_HEAD_INIT(xs_local_transport.list), + .name = "named UNIX socket", + .owner = THIS_MODULE, + .ident = XPRT_TRANSPORT_LOCAL, + .setup = xs_setup_local, +}; + static struct xprt_class xs_udp_transport = { .list = LIST_HEAD_INIT(xs_udp_transport.list), .name = "udp", @@ -2473,6 +2870,7 @@ int init_socket_xprt(void) sunrpc_table_header = register_sysctl_table(sunrpc_table); #endif + xprt_register_transport(&xs_local_transport); xprt_register_transport(&xs_udp_transport); xprt_register_transport(&xs_tcp_transport); xprt_register_transport(&xs_bc_tcp_transport); @@ -2493,6 +2891,7 @@ void cleanup_socket_xprt(void) } #endif + xprt_unregister_transport(&xs_local_transport); xprt_unregister_transport(&xs_udp_transport); xprt_unregister_transport(&xs_tcp_transport); xprt_unregister_transport(&xs_bc_tcp_transport); diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index b1d75beb7e2..0722a25a3a3 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -2254,7 +2254,7 @@ static int unix_seq_show(struct seq_file *seq, void *v) struct unix_sock *u = unix_sk(s); unix_state_lock(s); - seq_printf(seq, "%p: %08X %08X %08X %04X %02X %5lu", + seq_printf(seq, "%pK: %08X %08X %08X %04X %02X %5lu", s, atomic_read(&s->sk_refcnt), 0, diff --git a/net/wireless/core.h b/net/wireless/core.h index bf0fb40e3c8..3dce1f167eb 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -245,6 +245,7 @@ struct cfg80211_event { u16 status; } cr; struct { + struct ieee80211_channel *channel; u8 bssid[ETH_ALEN]; const u8 *req_ie; const u8 *resp_ie; @@ -392,7 +393,9 @@ int __cfg80211_disconnect(struct cfg80211_registered_device *rdev, int cfg80211_disconnect(struct cfg80211_registered_device *rdev, struct net_device *dev, u16 reason, bool wextev); -void __cfg80211_roamed(struct wireless_dev *wdev, const u8 *bssid, +void __cfg80211_roamed(struct wireless_dev *wdev, + struct ieee80211_channel *channel, + const u8 *bssid, const u8 *req_ie, size_t req_ie_len, const u8 *resp_ie, size_t resp_ie_len); int cfg80211_mgd_wext_connect(struct cfg80211_registered_device *rdev, diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 2222ce08ee9..88a565f130a 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -3294,8 +3294,6 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) struct cfg80211_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; struct cfg80211_scan_request *request; - struct cfg80211_ssid *ssid; - struct ieee80211_channel *channel; struct nlattr *attr; struct wiphy *wiphy; int err, tmp, n_ssids = 0, n_channels, i; @@ -3342,8 +3340,8 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) return -EINVAL; request = kzalloc(sizeof(*request) - + sizeof(*ssid) * n_ssids - + sizeof(channel) * n_channels + + sizeof(*request->ssids) * n_ssids + + sizeof(*request->channels) * n_channels + ie_len, GFP_KERNEL); if (!request) return -ENOMEM; @@ -3408,12 +3406,12 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info) i = 0; if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { + request->ssids[i].ssid_len = nla_len(attr); if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) { err = -EINVAL; goto out_free; } memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); - request->ssids[i].ssid_len = nla_len(attr); i++; } } @@ -3449,8 +3447,6 @@ static int nl80211_start_sched_scan(struct sk_buff *skb, struct cfg80211_sched_scan_request *request; struct cfg80211_registered_device *rdev = info->user_ptr[0]; struct net_device *dev = info->user_ptr[1]; - struct cfg80211_ssid *ssid; - struct ieee80211_channel *channel; struct nlattr *attr; struct wiphy *wiphy; int err, tmp, n_ssids = 0, n_channels, i; @@ -3507,8 +3503,8 @@ static int nl80211_start_sched_scan(struct sk_buff *skb, return -EINVAL; request = kzalloc(sizeof(*request) - + sizeof(*ssid) * n_ssids - + sizeof(channel) * n_channels + + sizeof(*request->ssids) * n_ssids + + sizeof(*request->channels) * n_channels + ie_len, GFP_KERNEL); if (!request) return -ENOMEM; @@ -3576,6 +3572,7 @@ static int nl80211_start_sched_scan(struct sk_buff *skb, if (info->attrs[NL80211_ATTR_SCAN_SSIDS]) { nla_for_each_nested(attr, info->attrs[NL80211_ATTR_SCAN_SSIDS], tmp) { + request->ssids[i].ssid_len = nla_len(attr); if (request->ssids[i].ssid_len > IEEE80211_MAX_SSID_LEN) { err = -EINVAL; @@ -3583,7 +3580,6 @@ static int nl80211_start_sched_scan(struct sk_buff *skb, } memcpy(request->ssids[i].ssid, nla_data(attr), nla_len(attr)); - request->ssids[i].ssid_len = nla_len(attr); i++; } } diff --git a/net/wireless/scan.c b/net/wireless/scan.c index 73a441d237b..7a6c67667d7 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -267,13 +267,35 @@ static bool is_bss(struct cfg80211_bss *a, return memcmp(ssidie + 2, ssid, ssid_len) == 0; } +static bool is_mesh_bss(struct cfg80211_bss *a) +{ + const u8 *ie; + + if (!WLAN_CAPABILITY_IS_STA_BSS(a->capability)) + return false; + + ie = cfg80211_find_ie(WLAN_EID_MESH_ID, + a->information_elements, + a->len_information_elements); + if (!ie) + return false; + + ie = cfg80211_find_ie(WLAN_EID_MESH_CONFIG, + a->information_elements, + a->len_information_elements); + if (!ie) + return false; + + return true; +} + static bool is_mesh(struct cfg80211_bss *a, const u8 *meshid, size_t meshidlen, const u8 *meshcfg) { const u8 *ie; - if (!WLAN_CAPABILITY_IS_MBSS(a->capability)) + if (!WLAN_CAPABILITY_IS_STA_BSS(a->capability)) return false; ie = cfg80211_find_ie(WLAN_EID_MESH_ID, @@ -311,7 +333,7 @@ static int cmp_bss(struct cfg80211_bss *a, if (a->channel != b->channel) return b->channel->center_freq - a->channel->center_freq; - if (WLAN_CAPABILITY_IS_MBSS(a->capability | b->capability)) { + if (is_mesh_bss(a) && is_mesh_bss(b)) { r = cmp_ies(WLAN_EID_MESH_ID, a->information_elements, a->len_information_elements, @@ -457,7 +479,6 @@ cfg80211_bss_update(struct cfg80211_registered_device *dev, struct cfg80211_internal_bss *res) { struct cfg80211_internal_bss *found = NULL; - const u8 *meshid, *meshcfg; /* * The reference to "res" is donated to this function. @@ -470,22 +491,6 @@ cfg80211_bss_update(struct cfg80211_registered_device *dev, res->ts = jiffies; - if (WLAN_CAPABILITY_IS_MBSS(res->pub.capability)) { - /* must be mesh, verify */ - meshid = cfg80211_find_ie(WLAN_EID_MESH_ID, - res->pub.information_elements, - res->pub.len_information_elements); - meshcfg = cfg80211_find_ie(WLAN_EID_MESH_CONFIG, - res->pub.information_elements, - res->pub.len_information_elements); - if (!meshid || !meshcfg || - meshcfg[1] != sizeof(struct ieee80211_meshconf_ie)) { - /* bogus mesh */ - kref_put(&res->ref, bss_release); - return NULL; - } - } - spin_lock_bh(&dev->bss_lock); found = rb_find_bss(dev, res); diff --git a/net/wireless/sme.c b/net/wireless/sme.c index e17b0bee6bd..b7b6ff8be55 100644 --- a/net/wireless/sme.c +++ b/net/wireless/sme.c @@ -250,7 +250,8 @@ static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev) if (wdev->conn->params.privacy) capa |= WLAN_CAPABILITY_PRIVACY; - bss = cfg80211_get_bss(wdev->wiphy, NULL, wdev->conn->params.bssid, + bss = cfg80211_get_bss(wdev->wiphy, wdev->conn->params.channel, + wdev->conn->params.bssid, wdev->conn->params.ssid, wdev->conn->params.ssid_len, WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_PRIVACY, @@ -470,7 +471,10 @@ void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid, } if (!bss) - bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid, + bss = cfg80211_get_bss(wdev->wiphy, + wdev->conn ? wdev->conn->params.channel : + NULL, + bssid, wdev->ssid, wdev->ssid_len, WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS); @@ -538,7 +542,9 @@ void cfg80211_connect_result(struct net_device *dev, const u8 *bssid, } EXPORT_SYMBOL(cfg80211_connect_result); -void __cfg80211_roamed(struct wireless_dev *wdev, const u8 *bssid, +void __cfg80211_roamed(struct wireless_dev *wdev, + struct ieee80211_channel *channel, + const u8 *bssid, const u8 *req_ie, size_t req_ie_len, const u8 *resp_ie, size_t resp_ie_len) { @@ -565,7 +571,7 @@ void __cfg80211_roamed(struct wireless_dev *wdev, const u8 *bssid, cfg80211_put_bss(&wdev->current_bss->pub); wdev->current_bss = NULL; - bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid, + bss = cfg80211_get_bss(wdev->wiphy, channel, bssid, wdev->ssid, wdev->ssid_len, WLAN_CAPABILITY_ESS, WLAN_CAPABILITY_ESS); @@ -603,7 +609,9 @@ void __cfg80211_roamed(struct wireless_dev *wdev, const u8 *bssid, #endif } -void cfg80211_roamed(struct net_device *dev, const u8 *bssid, +void cfg80211_roamed(struct net_device *dev, + struct ieee80211_channel *channel, + const u8 *bssid, const u8 *req_ie, size_t req_ie_len, const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp) { @@ -619,6 +627,7 @@ void cfg80211_roamed(struct net_device *dev, const u8 *bssid, return; ev->type = EVENT_ROAMED; + ev->rm.channel = channel; memcpy(ev->rm.bssid, bssid, ETH_ALEN); ev->rm.req_ie = ((u8 *)ev) + sizeof(*ev); ev->rm.req_ie_len = req_ie_len; diff --git a/net/wireless/util.c b/net/wireless/util.c index f0536d44d43..4d7b83fbc32 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -746,7 +746,7 @@ static void cfg80211_process_wdev_events(struct wireless_dev *wdev) NULL); break; case EVENT_ROAMED: - __cfg80211_roamed(wdev, ev->rm.bssid, + __cfg80211_roamed(wdev, ev->rm.channel, ev->rm.bssid, ev->rm.req_ie, ev->rm.req_ie_len, ev->rm.resp_ie, ev->rm.resp_ie_len); break; |