Merge commit 'origin/master' into next

Manual merge of:
	arch/powerpc/kernel/asm-offsets.c

13 files changed, 103 insertions, 46 deletions

diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index 4cc3624bd22d..95f7a7a544b4 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -90,9 +90,6 @@ static void add_conn(struct work_struct *work)
 	struct hci_conn *conn = container_of(work, struct hci_conn, work_add);
 	struct hci_dev *hdev = conn->hdev;
 
-	/* ensure previous del is complete */
-	flush_work(&conn->work_del);
-
 	dev_set_name(&conn->dev, "%s:%d", hdev->name, conn->handle);
 
 	if (device_add(&conn->dev) < 0) {
@@ -118,9 +115,6 @@ static void del_conn(struct work_struct *work)
 	struct hci_conn *conn = container_of(work, struct hci_conn, work_del);
 	struct hci_dev *hdev = conn->hdev;
 
-	/* ensure previous add is complete */
-	flush_work(&conn->work_add);
-
 	if (!device_is_registered(&conn->dev))
 		return;
 
diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c
index 9fd0dc3cca99..b75b6cea49da 100644
--- a/net/core/drop_monitor.c
+++ b/net/core/drop_monitor.c
@@ -23,7 +23,7 @@
 #include <linux/bitops.h>
 #include <net/genetlink.h>
 
-#include <trace/skb.h>
+#include <trace/events/skb.h>
 
 #include <asm/unaligned.h>
 
diff --git a/net/core/net-traces.c b/net/core/net-traces.c
index c8fb45665e4f..499a67eaf3ae 100644
--- a/net/core/net-traces.c
+++ b/net/core/net-traces.c
@@ -19,11 +19,11 @@
 #include <linux/workqueue.h>
 #include <linux/netlink.h>
 #include <linux/net_dropmon.h>
-#include <trace/skb.h>
 
 #include <asm/unaligned.h>
 #include <asm/bitops.h>
 
+#define CREATE_TRACE_POINTS
+#include <trace/events/skb.h>
 
-DEFINE_TRACE(kfree_skb);
 EXPORT_TRACEPOINT_SYMBOL_GPL(kfree_skb);
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index e505b5392e1e..c2e4fb8f3546 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -65,7 +65,7 @@
 
 #include <asm/uaccess.h>
 #include <asm/system.h>
-#include <trace/skb.h>
+#include <trace/events/skb.h>
 
 #include "kmap_skb.h"
 
diff --git a/net/netfilter/nf_conntrack_proto_dccp.c b/net/netfilter/nf_conntrack_proto_dccp.c
index 8e757dd53396..aee0d6bea309 100644
--- a/net/netfilter/nf_conntrack_proto_dccp.c
+++ b/net/netfilter/nf_conntrack_proto_dccp.c
@@ -22,6 +22,7 @@
 #include <linux/netfilter/nfnetlink_conntrack.h>
 #include <net/netfilter/nf_conntrack.h>
 #include <net/netfilter/nf_conntrack_l4proto.h>
+#include <net/netfilter/nf_conntrack_ecache.h>
 #include <net/netfilter/nf_log.h>
 
 static DEFINE_RWLOCK(dccp_lock);
@@ -553,6 +554,9 @@ static int dccp_packet(struct nf_conn *ct, const struct sk_buff *skb,
 	ct->proto.dccp.state = new_state;
 	write_unlock_bh(&dccp_lock);
 
+	if (new_state != old_state)
+		nf_conntrack_event_cache(IPCT_PROTOINFO, ct);
+
 	dn = dccp_pernet(net);
 	nf_ct_refresh_acct(ct, ctinfo, skb, dn->dccp_timeout[new_state]);
 
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index b5ccf2b4b2e7..97a6e93d742e 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -634,6 +634,14 @@ static bool tcp_in_window(const struct nf_conn *ct,
 			sender->td_end = end;
 			sender->flags |= IP_CT_TCP_FLAG_DATA_UNACKNOWLEDGED;
 		}
+		if (tcph->ack) {
+			if (!(sender->flags & IP_CT_TCP_FLAG_MAXACK_SET)) {
+				sender->td_maxack = ack;
+				sender->flags |= IP_CT_TCP_FLAG_MAXACK_SET;
+			} else if (after(ack, sender->td_maxack))
+				sender->td_maxack = ack;
+		}
+
 		/*
 		 * Update receiver data.
 		 */
@@ -919,6 +927,16 @@ static int tcp_packet(struct nf_conn *ct,
 		return -NF_ACCEPT;
 	case TCP_CONNTRACK_CLOSE:
 		if (index == TCP_RST_SET
+		    && (ct->proto.tcp.seen[!dir].flags & IP_CT_TCP_FLAG_MAXACK_SET)
+		    && before(ntohl(th->seq), ct->proto.tcp.seen[!dir].td_maxack)) {
+			/* Invalid RST  */
+			write_unlock_bh(&tcp_lock);
+			if (LOG_INVALID(net, IPPROTO_TCP))
+				nf_log_packet(pf, 0, skb, NULL, NULL, NULL,
+					  "nf_ct_tcp: invalid RST ");
+			return -NF_ACCEPT;
+		}
+		if (index == TCP_RST_SET
 		    && ((test_bit(IPS_SEEN_REPLY_BIT, &ct->status)
 			 && ct->proto.tcp.last_index == TCP_SYN_SET)
 			|| (!test_bit(IPS_ASSURED_BIT, &ct->status)
diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
index fd326ac27ec8..66a6dd5c519a 100644
--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -581,6 +581,12 @@ nfulnl_log_packet(u_int8_t pf,
 		+ nla_total_size(sizeof(struct nfulnl_msg_packet_hw))
 		+ nla_total_size(sizeof(struct nfulnl_msg_packet_timestamp));
 
+	if (in && skb_mac_header_was_set(skb)) {
+		size +=   nla_total_size(skb->dev->hard_header_len)
+			+ nla_total_size(sizeof(u_int16_t))	/* hwtype */
+			+ nla_total_size(sizeof(u_int16_t));	/* hwlen */
+	}
+
 	spin_lock_bh(&inst->lock);
 
 	if (inst->flags & NFULNL_CFG_F_SEQ)
diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c
index a5b5369c30f9..219dcdbe388c 100644
--- a/net/netfilter/xt_hashlimit.c
+++ b/net/netfilter/xt_hashlimit.c
@@ -926,7 +926,7 @@ static int dl_seq_show(struct seq_file *s, void *v)
 	if (!hlist_empty(&htable->hash[*bucket])) {
 		hlist_for_each_entry(ent, pos, &htable->hash[*bucket], node)
 			if (dl_seq_real_show(ent, htable->family, s))
-				return 1;
+				return -1;
 	}
 	return 0;
 }
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 0759f32e9dca..09cdcdfe7e91 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -135,6 +135,7 @@ static int tc_ctl_tfilter(struct sk_buff *skb, struct nlmsghdr *n, void *arg)
 	unsigned long cl;
 	unsigned long fh;
 	int err;
+	int tp_created = 0;
 
 	if (net != &init_net)
 		return -EINVAL;
@@ -266,10 +267,7 @@ replay:
 			goto errout;
 		}
 
-		spin_lock_bh(root_lock);
-		tp->next = *back;
-		*back = tp;
-		spin_unlock_bh(root_lock);
+		tp_created = 1;
 
 	} else if (tca[TCA_KIND] && nla_strcmp(tca[TCA_KIND], tp->ops->kind))
 		goto errout;
@@ -296,8 +294,11 @@ replay:
 		switch (n->nlmsg_type) {
 		case RTM_NEWTFILTER:
 			err = -EEXIST;
-			if (n->nlmsg_flags & NLM_F_EXCL)
+			if (n->nlmsg_flags & NLM_F_EXCL) {
+				if (tp_created)
+					tcf_destroy(tp);
 				goto errout;
+			}
 			break;
 		case RTM_DELTFILTER:
 			err = tp->ops->delete(tp, fh);
@@ -314,8 +315,18 @@ replay:
 	}
 
 	err = tp->ops->change(tp, cl, t->tcm_handle, tca, &fh);
-	if (err == 0)
+	if (err == 0) {
+		if (tp_created) {
+			spin_lock_bh(root_lock);
+			tp->next = *back;
+			*back = tp;
+			spin_unlock_bh(root_lock);
+		}
 		tfilter_notify(skb, n, tp, fh, RTM_NEWTFILTER);
+	} else {
+		if (tp_created)
+			tcf_destroy(tp);
+	}
 
 errout:
 	if (cl)
diff --git a/net/sched/cls_cgroup.c b/net/sched/cls_cgroup.c
index 91a3db4a76f8..e5becb92b3e7 100644
--- a/net/sched/cls_cgroup.c
+++ b/net/sched/cls_cgroup.c
@@ -104,8 +104,7 @@ static int cls_cgroup_classify(struct sk_buff *skb, struct tcf_proto *tp,
 			       struct tcf_result *res)
 {
 	struct cls_cgroup_head *head = tp->root;
-	struct cgroup_cls_state *cs;
-	int ret = 0;
+	u32 classid;
 
 	/*
 	 * Due to the nature of the classifier it is required to ignore all
@@ -121,17 +120,18 @@ static int cls_cgroup_classify(struct sk_buff *skb, struct tcf_proto *tp,
 		return -1;
 
 	rcu_read_lock();
-	cs = task_cls_state(current);
-	if (cs->classid && tcf_em_tree_match(skb, &head->ematches, NULL)) {
-		res->classid = cs->classid;
-		res->class = 0;
-		ret = tcf_exts_exec(skb, &head->exts, res);
-	} else
-		ret = -1;
-
+	classid = task_cls_state(current)->classid;
 	rcu_read_unlock();
 
-	return ret;
+	if (!classid)
+		return -1;
+
+	if (!tcf_em_tree_match(skb, &head->ematches, NULL))
+		return -1;
+
+	res->classid = classid;
+	res->class = 0;
+	return tcf_exts_exec(skb, &head->exts, res);
 }
 
 static unsigned long cls_cgroup_get(struct tcf_proto *tp, u32 handle)
@@ -167,6 +167,9 @@ static int cls_cgroup_change(struct tcf_proto *tp, unsigned long base,
 	struct tcf_exts e;
 	int err;
 
+	if (!tca[TCA_OPTIONS])
+		return -EINVAL;
+
 	if (head == NULL) {
 		if (!handle)
 			return -EINVAL;
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index af3198814c15..9d504234af4a 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -345,6 +345,7 @@ 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;
 	release_sock(sock->sk);
 #endif
 }
@@ -796,6 +797,23 @@ static int svc_tcp_recvfrom(struct svc_rqst *rqstp)
 		test_bit(XPT_CONN, &svsk->sk_xprt.xpt_flags),
 		test_bit(XPT_CLOSE, &svsk->sk_xprt.xpt_flags));
 
+	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);
 
 	/* Receive data. If we haven't got the record length yet, get
@@ -1043,6 +1061,15 @@ static void svc_tcp_init(struct svc_sock *svsk, struct svc_serv *serv)
 
 		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);
@@ -1112,14 +1139,8 @@ 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 {
-		/* 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);
+	else
 		svc_tcp_init(svsk, serv);
-	}
 
 	dprintk("svc: svc_setup_socket created %p (inet %p)\n",
 				svsk, svsk->sk_sk);
diff --git a/net/sunrpc/xprtrdma/svc_rdma_sendto.c b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
index 8b510c5e8777..f11be72a1a80 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_sendto.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_sendto.c
@@ -128,7 +128,8 @@ static int fast_reg_xdr(struct svcxprt_rdma *xprt,
 		page_bytes -= sge_bytes;
 
 		frmr->page_list->page_list[page_no] =
-			ib_dma_map_page(xprt->sc_cm_id->device, page, 0,
+			ib_dma_map_single(xprt->sc_cm_id->device,
+					  page_address(page),
 					  PAGE_SIZE, DMA_TO_DEVICE);
 		if (ib_dma_mapping_error(xprt->sc_cm_id->device,
 					 frmr->page_list->page_list[page_no]))
@@ -532,18 +533,17 @@ static int send_reply(struct svcxprt_rdma *rdma,
 		clear_bit(RDMACTXT_F_FAST_UNREG, &ctxt->flags);
 
 	/* Prepare the SGE for the RPCRDMA Header */
+	ctxt->sge[0].lkey = rdma->sc_dma_lkey;
+	ctxt->sge[0].length = svc_rdma_xdr_get_reply_hdr_len(rdma_resp);
 	ctxt->sge[0].addr =
-		ib_dma_map_page(rdma->sc_cm_id->device,
-				page, 0, PAGE_SIZE, DMA_TO_DEVICE);
+		ib_dma_map_single(rdma->sc_cm_id->device, page_address(page),
+				  ctxt->sge[0].length, DMA_TO_DEVICE);
 	if (ib_dma_mapping_error(rdma->sc_cm_id->device, ctxt->sge[0].addr))
 		goto err;
 	atomic_inc(&rdma->sc_dma_used);
 
 	ctxt->direction = DMA_TO_DEVICE;
 
-	ctxt->sge[0].length = svc_rdma_xdr_get_reply_hdr_len(rdma_resp);
-	ctxt->sge[0].lkey = rdma->sc_dma_lkey;
-
 	/* Determine how many of our SGE are to be transmitted */
 	for (sge_no = 1; byte_count && sge_no < vec->count; sge_no++) {
 		sge_bytes = min_t(size_t, vec->sge[sge_no].iov_len, byte_count);
diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c
index 4b0c2fa15e0b..5151f9f6c573 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_transport.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c
@@ -500,8 +500,8 @@ int svc_rdma_post_recv(struct svcxprt_rdma *xprt)
 		BUG_ON(sge_no >= xprt->sc_max_sge);
 		page = svc_rdma_get_page();
 		ctxt->pages[sge_no] = page;
-		pa = ib_dma_map_page(xprt->sc_cm_id->device,
-				     page, 0, PAGE_SIZE,
+		pa = ib_dma_map_single(xprt->sc_cm_id->device,
+				     page_address(page), PAGE_SIZE,
 				     DMA_FROM_DEVICE);
 		if (ib_dma_mapping_error(xprt->sc_cm_id->device, pa))
 			goto err_put_ctxt;
@@ -1315,8 +1315,8 @@ void svc_rdma_send_error(struct svcxprt_rdma *xprt, struct rpcrdma_msg *rmsgp,
 	length = svc_rdma_xdr_encode_error(xprt, rmsgp, err, va);
 
 	/* Prepare SGE for local address */
-	sge.addr = ib_dma_map_page(xprt->sc_cm_id->device,
-				   p, 0, PAGE_SIZE, DMA_FROM_DEVICE);
+	sge.addr = ib_dma_map_single(xprt->sc_cm_id->device,
+				   page_address(p), PAGE_SIZE, DMA_FROM_DEVICE);
 	if (ib_dma_mapping_error(xprt->sc_cm_id->device, sge.addr)) {
 		put_page(p);
 		return;
@@ -1343,7 +1343,7 @@ void svc_rdma_send_error(struct svcxprt_rdma *xprt, struct rpcrdma_msg *rmsgp,
 	if (ret) {
 		dprintk("svcrdma: Error %d posting send for protocol error\n",
 			ret);
-		ib_dma_unmap_page(xprt->sc_cm_id->device,
+		ib_dma_unmap_single(xprt->sc_cm_id->device,
 				  sge.addr, PAGE_SIZE,
 				  DMA_FROM_DEVICE);
 		svc_rdma_put_context(ctxt, 1);