diff --git a/fs/dlm/lowcomms-sctp.c b/fs/dlm/lowcomms-sctp.c
index 6da6b14d5a61b40a83e904e6f56cc19d12865ad2..fe158d7a92853074da36daa33dcbcbabaae00ec7 100644
--- a/fs/dlm/lowcomms-sctp.c
+++ b/fs/dlm/lowcomms-sctp.c
@@ -2,7 +2,7 @@
 *******************************************************************************
 **
 **  Copyright (C) Sistina Software, Inc.  1997-2003  All rights reserved.
-**  Copyright (C) 2004-2005 Red Hat, Inc.  All rights reserved.
+**  Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
 **
 **  This copyrighted material is made available to anyone wishing to use,
 **  modify, copy, or redistribute it subject to the terms and conditions
@@ -75,13 +75,13 @@ struct nodeinfo {
 };
 
 static DEFINE_IDR(nodeinfo_idr);
-static struct rw_semaphore	nodeinfo_lock;
-static int			max_nodeid;
+static DECLARE_RWSEM(nodeinfo_lock);
+static int max_nodeid;
 
 struct cbuf {
-	unsigned		base;
-	unsigned		len;
-	unsigned		mask;
+	unsigned int base;
+	unsigned int len;
+	unsigned int mask;
 };
 
 /* Just the one of these, now. But this struct keeps
@@ -90,9 +90,9 @@ struct cbuf {
 #define CF_READ_PENDING 1
 
 struct connection {
-	struct socket          *sock;
+	struct socket           *sock;
 	unsigned long		flags;
-	struct page            *rx_page;
+	struct page             *rx_page;
 	atomic_t		waiting_requests;
 	struct cbuf		cb;
 	int                     eagain_flag;
@@ -102,36 +102,40 @@ struct connection {
 
 struct writequeue_entry {
 	struct list_head	list;
-	struct page            *page;
+	struct page             *page;
 	int			offset;
 	int			len;
 	int			end;
 	int			users;
-	struct nodeinfo        *ni;
+	struct nodeinfo         *ni;
 };
 
-#define CBUF_ADD(cb, n) do { (cb)->len += n; } while(0)
-#define CBUF_EMPTY(cb) ((cb)->len == 0)
-#define CBUF_MAY_ADD(cb, n) (((cb)->len + (n)) < ((cb)->mask + 1))
-#define CBUF_DATA(cb) (((cb)->base + (cb)->len) & (cb)->mask)
+static void cbuf_add(struct cbuf *cb, int n)
+{
+	cb->len += n;
+}
 
-#define CBUF_INIT(cb, size) \
-do { \
-	(cb)->base = (cb)->len = 0; \
-	(cb)->mask = ((size)-1); \
-} while(0)
+static int cbuf_data(struct cbuf *cb)
+{
+	return ((cb->base + cb->len) & cb->mask);
+}
 
-#define CBUF_EAT(cb, n) \
-do { \
-	(cb)->len  -= (n); \
-	(cb)->base += (n); \
-	(cb)->base &= (cb)->mask; \
-} while(0)
+static void cbuf_init(struct cbuf *cb, int size)
+{
+	cb->base = cb->len = 0;
+	cb->mask = size-1;
+}
 
+static void cbuf_eat(struct cbuf *cb, int n)
+{
+	cb->len  -= n;
+	cb->base += n;
+	cb->base &= cb->mask;
+}
 
 /* List of nodes which have writes pending */
-static struct list_head write_nodes;
-static spinlock_t write_nodes_lock;
+static LIST_HEAD(write_nodes);
+static DEFINE_SPINLOCK(write_nodes_lock);
 
 /* Maximum number of incoming messages to process before
  * doing a schedule()
@@ -141,8 +145,7 @@ static spinlock_t write_nodes_lock;
 /* Manage daemons */
 static struct task_struct *recv_task;
 static struct task_struct *send_task;
-static wait_queue_head_t lowcomms_recv_wait;
-static atomic_t accepting;
+static DECLARE_WAIT_QUEUE_HEAD(lowcomms_recv_wait);
 
 /* The SCTP connection */
 static struct connection sctp_con;
@@ -161,11 +164,11 @@ static int nodeid_to_addr(int nodeid, struct sockaddr *retaddr)
 		return error;
 
 	if (dlm_local_addr[0]->ss_family == AF_INET) {
-	        struct sockaddr_in *in4  = (struct sockaddr_in *) &addr;
+		struct sockaddr_in *in4  = (struct sockaddr_in *) &addr;
 		struct sockaddr_in *ret4 = (struct sockaddr_in *) retaddr;
 		ret4->sin_addr.s_addr = in4->sin_addr.s_addr;
 	} else {
-	        struct sockaddr_in6 *in6  = (struct sockaddr_in6 *) &addr;
+		struct sockaddr_in6 *in6  = (struct sockaddr_in6 *) &addr;
 		struct sockaddr_in6 *ret6 = (struct sockaddr_in6 *) retaddr;
 		memcpy(&ret6->sin6_addr, &in6->sin6_addr,
 		       sizeof(in6->sin6_addr));
@@ -174,6 +177,8 @@ static int nodeid_to_addr(int nodeid, struct sockaddr *retaddr)
 	return 0;
 }
 
+/* If alloc is 0 here we will not attempt to allocate a new
+   nodeinfo struct */
 static struct nodeinfo *nodeid2nodeinfo(int nodeid, gfp_t alloc)
 {
 	struct nodeinfo *ni;
@@ -184,44 +189,45 @@ static struct nodeinfo *nodeid2nodeinfo(int nodeid, gfp_t alloc)
 	ni = idr_find(&nodeinfo_idr, nodeid);
 	up_read(&nodeinfo_lock);
 
-	if (!ni && alloc) {
-		down_write(&nodeinfo_lock);
+	if (ni || !alloc)
+		return ni;
 
-		ni = idr_find(&nodeinfo_idr, nodeid);
-		if (ni)
-			goto out_up;
+	down_write(&nodeinfo_lock);
 
-		r = idr_pre_get(&nodeinfo_idr, alloc);
-		if (!r)
-			goto out_up;
+	ni = idr_find(&nodeinfo_idr, nodeid);
+	if (ni)
+		goto out_up;
 
-		ni = kmalloc(sizeof(struct nodeinfo), alloc);
-		if (!ni)
-			goto out_up;
+	r = idr_pre_get(&nodeinfo_idr, alloc);
+	if (!r)
+		goto out_up;
 
-		r = idr_get_new_above(&nodeinfo_idr, ni, nodeid, &n);
-		if (r) {
-			kfree(ni);
-			ni = NULL;
-			goto out_up;
-		}
-		if (n != nodeid) {
-			idr_remove(&nodeinfo_idr, n);
-			kfree(ni);
-			ni = NULL;
-			goto out_up;
-		}
-		memset(ni, 0, sizeof(struct nodeinfo));
-		spin_lock_init(&ni->lock);
-		INIT_LIST_HEAD(&ni->writequeue);
-		spin_lock_init(&ni->writequeue_lock);
-		ni->nodeid = nodeid;
-
-		if (nodeid > max_nodeid)
-			max_nodeid = nodeid;
-	out_up:
-		up_write(&nodeinfo_lock);
+	ni = kmalloc(sizeof(struct nodeinfo), alloc);
+	if (!ni)
+		goto out_up;
+
+	r = idr_get_new_above(&nodeinfo_idr, ni, nodeid, &n);
+	if (r) {
+		kfree(ni);
+		ni = NULL;
+		goto out_up;
 	}
+	if (n != nodeid) {
+		idr_remove(&nodeinfo_idr, n);
+		kfree(ni);
+		ni = NULL;
+		goto out_up;
+	}
+	memset(ni, 0, sizeof(struct nodeinfo));
+	spin_lock_init(&ni->lock);
+	INIT_LIST_HEAD(&ni->writequeue);
+	spin_lock_init(&ni->writequeue_lock);
+	ni->nodeid = nodeid;
+
+	if (nodeid > max_nodeid)
+		max_nodeid = nodeid;
+out_up:
+	up_write(&nodeinfo_lock);
 
 	return ni;
 }
@@ -279,13 +285,13 @@ static void make_sockaddr(struct sockaddr_storage *saddr, uint16_t port,
 		in4_addr->sin_port = cpu_to_be16(port);
 		memset(&in4_addr->sin_zero, 0, sizeof(in4_addr->sin_zero));
 		memset(in4_addr+1, 0, sizeof(struct sockaddr_storage) -
-				      sizeof(struct sockaddr_in));
+		       sizeof(struct sockaddr_in));
 		*addr_len = sizeof(struct sockaddr_in);
 	} else {
 		struct sockaddr_in6 *in6_addr = (struct sockaddr_in6 *)saddr;
 		in6_addr->sin6_port = cpu_to_be16(port);
 		memset(in6_addr+1, 0, sizeof(struct sockaddr_storage) -
-				      sizeof(struct sockaddr_in6));
+		       sizeof(struct sockaddr_in6));
 		*addr_len = sizeof(struct sockaddr_in6);
 	}
 }
@@ -324,7 +330,7 @@ static void send_shutdown(sctp_assoc_t associd)
 	cmsg->cmsg_type = SCTP_SNDRCV;
 	cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo));
 	outmessage.msg_controllen = cmsg->cmsg_len;
-	sinfo = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
+	sinfo = CMSG_DATA(cmsg);
 	memset(sinfo, 0x00, sizeof(struct sctp_sndrcvinfo));
 
 	sinfo->sinfo_flags |= MSG_EOF;
@@ -387,7 +393,7 @@ static void process_sctp_notification(struct msghdr *msg, char *buf)
 
 			if ((int)sn->sn_assoc_change.sac_assoc_id <= 0) {
 				log_print("COMM_UP for invalid assoc ID %d",
-					 (int)sn->sn_assoc_change.sac_assoc_id);
+					  (int)sn->sn_assoc_change.sac_assoc_id);
 				init_failed();
 				return;
 			}
@@ -398,15 +404,18 @@ static void process_sctp_notification(struct msghdr *msg, char *buf)
 			fs = get_fs();
 			set_fs(get_ds());
 			ret = sctp_con.sock->ops->getsockopt(sctp_con.sock,
-						IPPROTO_SCTP, SCTP_PRIMARY_ADDR,
-						(char*)&prim, &prim_len);
+							     IPPROTO_SCTP,
+							     SCTP_PRIMARY_ADDR,
+							     (char*)&prim,
+							     &prim_len);
 			set_fs(fs);
 			if (ret < 0) {
 				struct nodeinfo *ni;
 
 				log_print("getsockopt/sctp_primary_addr on "
 					  "new assoc %d failed : %d",
-				    (int)sn->sn_assoc_change.sac_assoc_id, ret);
+					  (int)sn->sn_assoc_change.sac_assoc_id,
+					  ret);
 
 				/* Retry INIT later */
 				ni = assoc2nodeinfo(sn->sn_assoc_change.sac_assoc_id);
@@ -426,12 +435,10 @@ static void process_sctp_notification(struct msghdr *msg, char *buf)
 				return;
 
 			/* Save the assoc ID */
-			spin_lock(&ni->lock);
 			ni->assoc_id = sn->sn_assoc_change.sac_assoc_id;
-			spin_unlock(&ni->lock);
 
 			log_print("got new/restarted association %d nodeid %d",
-			       (int)sn->sn_assoc_change.sac_assoc_id, nodeid);
+				  (int)sn->sn_assoc_change.sac_assoc_id, nodeid);
 
 			/* Send any pending writes */
 			clear_bit(NI_INIT_PENDING, &ni->flags);
@@ -507,13 +514,12 @@ static int receive_from_sock(void)
 		sctp_con.rx_page = alloc_page(GFP_ATOMIC);
 		if (sctp_con.rx_page == NULL)
 			goto out_resched;
-		CBUF_INIT(&sctp_con.cb, PAGE_CACHE_SIZE);
+		cbuf_init(&sctp_con.cb, PAGE_CACHE_SIZE);
 	}
 
 	memset(&incmsg, 0, sizeof(incmsg));
 	memset(&msgname, 0, sizeof(msgname));
 
-	memset(incmsg, 0, sizeof(incmsg));
 	msg.msg_name = &msgname;
 	msg.msg_namelen = sizeof(msgname);
 	msg.msg_flags = 0;
@@ -532,17 +538,17 @@ static int receive_from_sock(void)
 	 * iov[0] is the bit of the circular buffer between the current end
 	 * point (cb.base + cb.len) and the end of the buffer.
 	 */
-	iov[0].iov_len = sctp_con.cb.base - CBUF_DATA(&sctp_con.cb);
+	iov[0].iov_len = sctp_con.cb.base - cbuf_data(&sctp_con.cb);
 	iov[0].iov_base = page_address(sctp_con.rx_page) +
-			  CBUF_DATA(&sctp_con.cb);
+		cbuf_data(&sctp_con.cb);
 	iov[1].iov_len = 0;
 
 	/*
 	 * iov[1] is the bit of the circular buffer between the start of the
 	 * buffer and the start of the currently used section (cb.base)
 	 */
-	if (CBUF_DATA(&sctp_con.cb) >= sctp_con.cb.base) {
-		iov[0].iov_len = PAGE_CACHE_SIZE - CBUF_DATA(&sctp_con.cb);
+	if (cbuf_data(&sctp_con.cb) >= sctp_con.cb.base) {
+		iov[0].iov_len = PAGE_CACHE_SIZE - cbuf_data(&sctp_con.cb);
 		iov[1].iov_len = sctp_con.cb.base;
 		iov[1].iov_base = page_address(sctp_con.rx_page);
 		msg.msg_iovlen = 2;
@@ -557,7 +563,7 @@ static int receive_from_sock(void)
 	msg.msg_control = incmsg;
 	msg.msg_controllen = sizeof(incmsg);
 	cmsg = CMSG_FIRSTHDR(&msg);
-	sinfo = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
+	sinfo = CMSG_DATA(cmsg);
 
 	if (msg.msg_flags & MSG_NOTIFICATION) {
 		process_sctp_notification(&msg, page_address(sctp_con.rx_page));
@@ -583,29 +589,29 @@ static int receive_from_sock(void)
 	if (r == 1)
 		return 0;
 
-	CBUF_ADD(&sctp_con.cb, ret);
+	cbuf_add(&sctp_con.cb, ret);
 	ret = dlm_process_incoming_buffer(cpu_to_le32(sinfo->sinfo_ppid),
 					  page_address(sctp_con.rx_page),
 					  sctp_con.cb.base, sctp_con.cb.len,
 					  PAGE_CACHE_SIZE);
 	if (ret < 0)
 		goto out_close;
-	CBUF_EAT(&sctp_con.cb, ret);
+	cbuf_eat(&sctp_con.cb, ret);
 
-      out:
+out:
 	ret = 0;
 	goto out_ret;
 
-      out_resched:
+out_resched:
 	lowcomms_data_ready(sctp_con.sock->sk, 0);
 	ret = 0;
-	schedule();
+	cond_resched();
 	goto out_ret;
 
-      out_close:
+out_close:
 	if (ret != -EAGAIN)
 		log_print("error reading from sctp socket: %d", ret);
-      out_ret:
+out_ret:
 	return ret;
 }
 
@@ -619,10 +625,12 @@ static int add_bind_addr(struct sockaddr_storage *addr, int addr_len, int num)
 	set_fs(get_ds());
 	if (num == 1)
 		result = sctp_con.sock->ops->bind(sctp_con.sock,
-					(struct sockaddr *) addr, addr_len);
+						  (struct sockaddr *) addr,
+						  addr_len);
 	else
 		result = sctp_con.sock->ops->setsockopt(sctp_con.sock, SOL_SCTP,
-				SCTP_SOCKOPT_BINDX_ADD, (char *)addr, addr_len);
+							SCTP_SOCKOPT_BINDX_ADD,
+							(char *)addr, addr_len);
 	set_fs(fs);
 
 	if (result < 0)
@@ -719,10 +727,10 @@ static int init_sock(void)
 
 	return 0;
 
- create_delsock:
+create_delsock:
 	sock_release(sock);
 	sctp_con.sock = NULL;
- out:
+out:
 	return result;
 }
 
@@ -756,16 +764,13 @@ void *dlm_lowcomms_get_buffer(int nodeid, int len, gfp_t allocation, char **ppc)
 	int users = 0;
 	struct nodeinfo *ni;
 
-	if (!atomic_read(&accepting))
-		return NULL;
-
 	ni = nodeid2nodeinfo(nodeid, allocation);
 	if (!ni)
 		return NULL;
 
 	spin_lock(&ni->writequeue_lock);
 	e = list_entry(ni->writequeue.prev, struct writequeue_entry, list);
-	if (((struct list_head *) e == &ni->writequeue) ||
+	if ((&e->list == &ni->writequeue) ||
 	    (PAGE_CACHE_SIZE - e->end < len)) {
 		e = NULL;
 	} else {
@@ -776,7 +781,7 @@ void *dlm_lowcomms_get_buffer(int nodeid, int len, gfp_t allocation, char **ppc)
 	spin_unlock(&ni->writequeue_lock);
 
 	if (e) {
-	      got_one:
+	got_one:
 		if (users == 0)
 			kmap(e->page);
 		*ppc = page_address(e->page) + offset;
@@ -803,9 +808,6 @@ void dlm_lowcomms_commit_buffer(void *arg)
 	int users;
 	struct nodeinfo *ni = e->ni;
 
-	if (!atomic_read(&accepting))
-		return;
-
 	spin_lock(&ni->writequeue_lock);
 	users = --e->users;
 	if (users)
@@ -822,7 +824,7 @@ void dlm_lowcomms_commit_buffer(void *arg)
 	}
 	return;
 
-      out:
+out:
 	spin_unlock(&ni->writequeue_lock);
 	return;
 }
@@ -878,7 +880,7 @@ static void initiate_association(int nodeid)
 	cmsg->cmsg_level = IPPROTO_SCTP;
 	cmsg->cmsg_type = SCTP_SNDRCV;
 	cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo));
-	sinfo = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
+	sinfo = CMSG_DATA(cmsg);
 	memset(sinfo, 0x00, sizeof(struct sctp_sndrcvinfo));
 	sinfo->sinfo_ppid = cpu_to_le32(dlm_local_nodeid);
 
@@ -892,7 +894,7 @@ static void initiate_association(int nodeid)
 }
 
 /* Send a message */
-static int send_to_sock(struct nodeinfo *ni)
+static void send_to_sock(struct nodeinfo *ni)
 {
 	int ret = 0;
 	struct writequeue_entry *e;
@@ -903,13 +905,13 @@ static int send_to_sock(struct nodeinfo *ni)
 	struct sctp_sndrcvinfo *sinfo;
 	struct kvec iov;
 
-        /* See if we need to init an association before we start
+	/* See if we need to init an association before we start
 	   sending precious messages */
 	spin_lock(&ni->lock);
 	if (!ni->assoc_id && !test_and_set_bit(NI_INIT_PENDING, &ni->flags)) {
 		spin_unlock(&ni->lock);
 		initiate_association(ni->nodeid);
-		return 0;
+		return;
 	}
 	spin_unlock(&ni->lock);
 
@@ -923,7 +925,7 @@ static int send_to_sock(struct nodeinfo *ni)
 	cmsg->cmsg_level = IPPROTO_SCTP;
 	cmsg->cmsg_type = SCTP_SNDRCV;
 	cmsg->cmsg_len = CMSG_LEN(sizeof(struct sctp_sndrcvinfo));
-	sinfo = (struct sctp_sndrcvinfo *)CMSG_DATA(cmsg);
+	sinfo = CMSG_DATA(cmsg);
 	memset(sinfo, 0x00, sizeof(struct sctp_sndrcvinfo));
 	sinfo->sinfo_ppid = cpu_to_le32(dlm_local_nodeid);
 	sinfo->sinfo_assoc_id = ni->assoc_id;
@@ -955,7 +957,7 @@ static int send_to_sock(struct nodeinfo *ni)
 				goto send_error;
 		} else {
 			/* Don't starve people filling buffers */
-			schedule();
+			cond_resched();
 		}
 
 		spin_lock(&ni->writequeue_lock);
@@ -964,15 +966,16 @@ static int send_to_sock(struct nodeinfo *ni)
 
 		if (e->len == 0 && e->users == 0) {
 			list_del(&e->list);
+			kunmap(e->page);
 			free_entry(e);
 			continue;
 		}
 	}
 	spin_unlock(&ni->writequeue_lock);
- out:
-	return ret;
+out:
+	return;
 
- send_error:
+send_error:
 	log_print("Error sending to node %d %d", ni->nodeid, ret);
 	spin_lock(&ni->lock);
 	if (!test_and_set_bit(NI_INIT_PENDING, &ni->flags)) {
@@ -982,7 +985,7 @@ static int send_to_sock(struct nodeinfo *ni)
 	} else
 		spin_unlock(&ni->lock);
 
-	return ret;
+	return;
 }
 
 /* Try to send any messages that are pending */
@@ -994,7 +997,7 @@ static void process_output_queue(void)
 	spin_lock_bh(&write_nodes_lock);
 	list_for_each_safe(list, temp, &write_nodes) {
 		struct nodeinfo *ni =
-		    list_entry(list, struct nodeinfo, write_list);
+			list_entry(list, struct nodeinfo, write_list);
 		clear_bit(NI_WRITE_PENDING, &ni->flags);
 		list_del(&ni->write_list);
 
@@ -1106,7 +1109,7 @@ static int dlm_recvd(void *data)
 		set_current_state(TASK_INTERRUPTIBLE);
 		add_wait_queue(&lowcomms_recv_wait, &wait);
 		if (!test_bit(CF_READ_PENDING, &sctp_con.flags))
-			schedule();
+			cond_resched();
 		remove_wait_queue(&lowcomms_recv_wait, &wait);
 		set_current_state(TASK_RUNNING);
 
@@ -1118,12 +1121,12 @@ static int dlm_recvd(void *data)
 
 				/* Don't starve out everyone else */
 				if (++count >= MAX_RX_MSG_COUNT) {
-					schedule();
+					cond_resched();
 					count = 0;
 				}
 			} while (!kthread_should_stop() && ret >=0);
 		}
-		schedule();
+		cond_resched();
 	}
 
 	return 0;
@@ -1138,7 +1141,7 @@ static int dlm_sendd(void *data)
 	while (!kthread_should_stop()) {
 		set_current_state(TASK_INTERRUPTIBLE);
 		if (write_list_empty())
-			schedule();
+			cond_resched();
 		set_current_state(TASK_RUNNING);
 
 		if (sctp_con.eagain_flag) {
@@ -1166,7 +1169,7 @@ static int daemons_start(void)
 
 	p = kthread_run(dlm_recvd, NULL, "dlm_recvd");
 	error = IS_ERR(p);
-       	if (error) {
+	if (error) {
 		log_print("can't start dlm_recvd %d", error);
 		return error;
 	}
@@ -1174,7 +1177,7 @@ static int daemons_start(void)
 
 	p = kthread_run(dlm_sendd, NULL, "dlm_sendd");
 	error = IS_ERR(p);
-       	if (error) {
+	if (error) {
 		log_print("can't start dlm_sendd %d", error);
 		kthread_stop(recv_task);
 		return error;
@@ -1197,43 +1200,28 @@ int dlm_lowcomms_start(void)
 	error = daemons_start();
 	if (error)
 		goto fail_sock;
-	atomic_set(&accepting, 1);
 	return 0;
 
- fail_sock:
+fail_sock:
 	close_connection();
 	return error;
 }
 
-/* Set all the activity flags to prevent any socket activity. */
-
 void dlm_lowcomms_stop(void)
 {
-	atomic_set(&accepting, 0);
+	int i;
+
 	sctp_con.flags = 0x7;
 	daemons_stop();
 	clean_writequeues();
 	close_connection();
 	dealloc_nodeinfo();
 	max_nodeid = 0;
-}
 
-int dlm_lowcomms_init(void)
-{
-	init_waitqueue_head(&lowcomms_recv_wait);
-	spin_lock_init(&write_nodes_lock);
-	INIT_LIST_HEAD(&write_nodes);
-	init_rwsem(&nodeinfo_lock);
-	return 0;
-}
-
-void dlm_lowcomms_exit(void)
-{
-	int i;
+	dlm_local_count = 0;
+	dlm_local_nodeid = 0;
 
 	for (i = 0; i < dlm_local_count; i++)
 		kfree(dlm_local_addr[i]);
-	dlm_local_count = 0;
-	dlm_local_nodeid = 0;
 }
 
diff --git a/fs/dlm/lowcomms-tcp.c b/fs/dlm/lowcomms-tcp.c
index 7289e59b4bd37d2b153f8856e34a3ef65949883d..8f2791fc84477cd449c08addb52892556deda83a 100644
--- a/fs/dlm/lowcomms-tcp.c
+++ b/fs/dlm/lowcomms-tcp.c
@@ -54,44 +54,59 @@
 #include "config.h"
 
 struct cbuf {
-	unsigned base;
-	unsigned len;
-	unsigned mask;
+	unsigned int base;
+	unsigned int len;
+	unsigned int mask;
 };
 
-#ifndef FALSE
-#define FALSE 0
-#define TRUE 1
-#endif
 #define NODE_INCREMENT 32
+static void cbuf_add(struct cbuf *cb, int n)
+{
+	cb->len += n;
+}
 
-#define CBUF_INIT(cb, size) do { (cb)->base = (cb)->len = 0; (cb)->mask = ((size)-1); } while(0)
-#define CBUF_ADD(cb, n) do { (cb)->len += n; } while(0)
-#define CBUF_EMPTY(cb) ((cb)->len == 0)
-#define CBUF_MAY_ADD(cb, n) (((cb)->len + (n)) < ((cb)->mask + 1))
-#define CBUF_EAT(cb, n) do { (cb)->len  -= (n); \
-                             (cb)->base += (n); (cb)->base &= (cb)->mask; } while(0)
-#define CBUF_DATA(cb) (((cb)->base + (cb)->len) & (cb)->mask)
+static int cbuf_data(struct cbuf *cb)
+{
+	return ((cb->base + cb->len) & cb->mask);
+}
+
+static void cbuf_init(struct cbuf *cb, int size)
+{
+	cb->base = cb->len = 0;
+	cb->mask = size-1;
+}
+
+static void cbuf_eat(struct cbuf *cb, int n)
+{
+	cb->len  -= n;
+	cb->base += n;
+	cb->base &= cb->mask;
+}
+
+static bool cbuf_empty(struct cbuf *cb)
+{
+	return cb->len == 0;
+}
 
 /* Maximum number of incoming messages to process before
-   doing a schedule()
+   doing a cond_resched()
 */
 #define MAX_RX_MSG_COUNT 25
 
 struct connection {
 	struct socket *sock;	/* NULL if not connected */
 	uint32_t nodeid;	/* So we know who we are in the list */
-	struct rw_semaphore sock_sem;	/* Stop connect races */
-	struct list_head read_list;	/* On this list when ready for reading */
-	struct list_head write_list;	/* On this list when ready for writing */
-	struct list_head state_list;	/* On this list when ready to connect */
+	struct rw_semaphore sock_sem; /* Stop connect races */
+	struct list_head read_list;   /* On this list when ready for reading */
+	struct list_head write_list;  /* On this list when ready for writing */
+	struct list_head state_list;  /* On this list when ready to connect */
 	unsigned long flags;	/* bit 1,2 = We are on the read/write lists */
 #define CF_READ_PENDING 1
 #define CF_WRITE_PENDING 2
 #define CF_CONNECT_PENDING 3
 #define CF_IS_OTHERCON 4
-	struct list_head writequeue;	/* List of outgoing writequeue_entries */
-	struct list_head listenlist;    /* List of allocated listening sockets */
+	struct list_head writequeue;  /* List of outgoing writequeue_entries */
+	struct list_head listenlist;  /* List of allocated listening sockets */
 	spinlock_t writequeue_lock;
 	int (*rx_action) (struct connection *);	/* What to do when active */
 	struct page *rx_page;
@@ -121,28 +136,27 @@ static struct task_struct *recv_task;
 static struct task_struct *send_task;
 
 static wait_queue_t lowcomms_send_waitq_head;
-static wait_queue_head_t lowcomms_send_waitq;
+static DECLARE_WAIT_QUEUE_HEAD(lowcomms_send_waitq);
 static wait_queue_t lowcomms_recv_waitq_head;
-static wait_queue_head_t lowcomms_recv_waitq;
+static DECLARE_WAIT_QUEUE_HEAD(lowcomms_recv_waitq);
 
 /* An array of pointers to connections, indexed by NODEID */
 static struct connection **connections;
-static struct semaphore connections_lock;
+static DECLARE_MUTEX(connections_lock);
 static kmem_cache_t *con_cache;
 static int conn_array_size;
-static atomic_t accepting;
 
 /* List of sockets that have reads pending */
-static struct list_head read_sockets;
-static spinlock_t read_sockets_lock;
+static LIST_HEAD(read_sockets);
+static DEFINE_SPINLOCK(read_sockets_lock);
 
 /* List of sockets which have writes pending */
-static struct list_head write_sockets;
-static spinlock_t write_sockets_lock;
+static LIST_HEAD(write_sockets);
+static DEFINE_SPINLOCK(write_sockets_lock);
 
 /* List of sockets which have connects pending */
-static struct list_head state_sockets;
-static spinlock_t state_sockets_lock;
+static LIST_HEAD(state_sockets);
+static DEFINE_SPINLOCK(state_sockets_lock);
 
 static struct connection *nodeid2con(int nodeid, gfp_t allocation)
 {
@@ -153,12 +167,11 @@ static struct connection *nodeid2con(int nodeid, gfp_t allocation)
 		int new_size = nodeid + NODE_INCREMENT;
 		struct connection **new_conns;
 
-		new_conns = kmalloc(sizeof(struct connection *) *
+		new_conns = kzalloc(sizeof(struct connection *) *
 				    new_size, allocation);
 		if (!new_conns)
 			goto finish;
 
-		memset(new_conns, 0, sizeof(struct connection *) * new_size);
 		memcpy(new_conns, connections,  sizeof(struct connection *) * conn_array_size);
 		conn_array_size = new_size;
 		kfree(connections);
@@ -168,11 +181,10 @@ static struct connection *nodeid2con(int nodeid, gfp_t allocation)
 
 	con = connections[nodeid];
 	if (con == NULL && allocation) {
-		con = kmem_cache_alloc(con_cache, allocation);
+		con = kmem_cache_zalloc(con_cache, allocation);
 		if (!con)
 			goto finish;
 
-		memset(con, 0, sizeof(*con));
 		con->nodeid = nodeid;
 		init_rwsem(&con->sock_sem);
 		INIT_LIST_HEAD(&con->writequeue);
@@ -181,7 +193,7 @@ static struct connection *nodeid2con(int nodeid, gfp_t allocation)
 		connections[nodeid] = con;
 	}
 
- finish:
+finish:
 	up(&connections_lock);
 	return con;
 }
@@ -220,8 +232,6 @@ static inline void lowcomms_connect_sock(struct connection *con)
 {
 	if (test_and_set_bit(CF_CONNECT_PENDING, &con->flags))
 		return;
-	if (!atomic_read(&accepting))
-		return;
 
 	spin_lock_bh(&state_sockets_lock);
 	list_add_tail(&con->state_list, &state_sockets);
@@ -232,31 +242,8 @@ static inline void lowcomms_connect_sock(struct connection *con)
 
 static void lowcomms_state_change(struct sock *sk)
 {
-/*	struct connection *con = sock2con(sk); */
-
-	switch (sk->sk_state) {
-	case TCP_ESTABLISHED:
+	if (sk->sk_state == TCP_ESTABLISHED)
 		lowcomms_write_space(sk);
-		break;
-
-	case TCP_FIN_WAIT1:
-	case TCP_FIN_WAIT2:
-	case TCP_TIME_WAIT:
-	case TCP_CLOSE:
-	case TCP_CLOSE_WAIT:
-	case TCP_LAST_ACK:
-	case TCP_CLOSING:
-		/* FIXME: I think this causes more trouble than it solves.
-		   lowcomms wil reconnect anyway when there is something to
-		   send. This just attempts reconnection if a node goes down!
-		*/
-		/* lowcomms_connect_sock(con); */
-		break;
-
-	default:
-		printk("dlm: lowcomms_state_change: state=%d\n", sk->sk_state);
-		break;
-	}
 }
 
 /* Make a socket active */
@@ -277,13 +264,12 @@ static int add_sock(struct socket *sock, struct connection *con)
 static void make_sockaddr(struct sockaddr_storage *saddr, uint16_t port,
 			  int *addr_len)
 {
-        saddr->ss_family =  dlm_local_addr.ss_family;
-        if (saddr->ss_family == AF_INET) {
+	saddr->ss_family =  dlm_local_addr.ss_family;
+	if (saddr->ss_family == AF_INET) {
 		struct sockaddr_in *in4_addr = (struct sockaddr_in *)saddr;
 		in4_addr->sin_port = cpu_to_be16(port);
 		*addr_len = sizeof(struct sockaddr_in);
-	}
-	else {
+	} else {
 		struct sockaddr_in6 *in6_addr = (struct sockaddr_in6 *)saddr;
 		in6_addr->sin6_port = cpu_to_be16(port);
 		*addr_len = sizeof(struct sockaddr_in6);
@@ -291,7 +277,7 @@ static void make_sockaddr(struct sockaddr_storage *saddr, uint16_t port,
 }
 
 /* Close a remote connection and tidy up */
-static void close_connection(struct connection *con, int and_other)
+static void close_connection(struct connection *con, bool and_other)
 {
 	down_write(&con->sock_sem);
 
@@ -300,11 +286,8 @@ static void close_connection(struct connection *con, int and_other)
 		con->sock = NULL;
 	}
 	if (con->othercon && and_other) {
-		/* Argh! recursion in kernel code!
-		   Actually, this isn't a list so it
-		   will only re-enter once.
-		*/
-		close_connection(con->othercon, FALSE);
+		/* Will only re-enter once. */
+		close_connection(con->othercon, false);
 	}
 	if (con->rx_page) {
 		__free_page(con->rx_page);
@@ -337,7 +320,7 @@ static int receive_from_sock(struct connection *con)
 		con->rx_page = alloc_page(GFP_ATOMIC);
 		if (con->rx_page == NULL)
 			goto out_resched;
-		CBUF_INIT(&con->cb, PAGE_CACHE_SIZE);
+		cbuf_init(&con->cb, PAGE_CACHE_SIZE);
 	}
 
 	msg.msg_control = NULL;
@@ -352,16 +335,16 @@ static int receive_from_sock(struct connection *con)
 	 * iov[0] is the bit of the circular buffer between the current end
 	 * point (cb.base + cb.len) and the end of the buffer.
 	 */
-	iov[0].iov_len = con->cb.base - CBUF_DATA(&con->cb);
-	iov[0].iov_base = page_address(con->rx_page) + CBUF_DATA(&con->cb);
+	iov[0].iov_len = con->cb.base - cbuf_data(&con->cb);
+	iov[0].iov_base = page_address(con->rx_page) + cbuf_data(&con->cb);
 	iov[1].iov_len = 0;
 
 	/*
 	 * iov[1] is the bit of the circular buffer between the start of the
 	 * buffer and the start of the currently used section (cb.base)
 	 */
-	if (CBUF_DATA(&con->cb) >= con->cb.base) {
-		iov[0].iov_len = PAGE_CACHE_SIZE - CBUF_DATA(&con->cb);
+	if (cbuf_data(&con->cb) >= con->cb.base) {
+		iov[0].iov_len = PAGE_CACHE_SIZE - cbuf_data(&con->cb);
 		iov[1].iov_len = con->cb.base;
 		iov[1].iov_base = page_address(con->rx_page);
 		msg.msg_iovlen = 2;
@@ -378,7 +361,7 @@ static int receive_from_sock(struct connection *con)
 		goto out_close;
 	if (ret == len)
 		call_again_soon = 1;
-	CBUF_ADD(&con->cb, ret);
+	cbuf_add(&con->cb, ret);
 	ret = dlm_process_incoming_buffer(con->nodeid,
 					  page_address(con->rx_page),
 					  con->cb.base, con->cb.len,
@@ -391,35 +374,32 @@ static int receive_from_sock(struct connection *con)
 	}
 	if (ret < 0)
 		goto out_close;
-	CBUF_EAT(&con->cb, ret);
+	cbuf_eat(&con->cb, ret);
 
-	if (CBUF_EMPTY(&con->cb) && !call_again_soon) {
+	if (cbuf_empty(&con->cb) && !call_again_soon) {
 		__free_page(con->rx_page);
 		con->rx_page = NULL;
 	}
 
-      out:
+out:
 	if (call_again_soon)
 		goto out_resched;
 	up_read(&con->sock_sem);
-	ret = 0;
-	goto out_ret;
+	return 0;
 
-      out_resched:
+out_resched:
 	lowcomms_data_ready(con->sock->sk, 0);
 	up_read(&con->sock_sem);
-	ret = 0;
-	schedule();
-	goto out_ret;
+	cond_resched();
+	return 0;
 
-      out_close:
+out_close:
 	up_read(&con->sock_sem);
 	if (ret != -EAGAIN && !test_bit(CF_IS_OTHERCON, &con->flags)) {
-		close_connection(con, FALSE);
+		close_connection(con, false);
 		/* Reconnect when there is something to send */
 	}
 
-      out_ret:
 	return ret;
 }
 
@@ -434,7 +414,8 @@ static int accept_from_sock(struct connection *con)
 	struct connection *newcon;
 
 	memset(&peeraddr, 0, sizeof(peeraddr));
-	result = sock_create_kern(dlm_local_addr.ss_family, SOCK_STREAM, IPPROTO_TCP, &newsock);
+	result = sock_create_kern(dlm_local_addr.ss_family, SOCK_STREAM,
+				  IPPROTO_TCP, &newsock);
 	if (result < 0)
 		return -ENOMEM;
 
@@ -462,7 +443,7 @@ static int accept_from_sock(struct connection *con)
 	/* Get the new node's NODEID */
 	make_sockaddr(&peeraddr, 0, &len);
 	if (dlm_addr_to_nodeid(&peeraddr, &nodeid)) {
-	    	printk("dlm: connect from non cluster node\n");
+		printk("dlm: connect from non cluster node\n");
 		sock_release(newsock);
 		up_read(&con->sock_sem);
 		return -1;
@@ -483,17 +464,16 @@ static int accept_from_sock(struct connection *con)
 	}
 	down_write(&newcon->sock_sem);
 	if (newcon->sock) {
-	        struct connection *othercon = newcon->othercon;
+		struct connection *othercon = newcon->othercon;
 
 		if (!othercon) {
-			othercon = kmem_cache_alloc(con_cache, GFP_KERNEL);
+			othercon = kmem_cache_zalloc(con_cache, GFP_KERNEL);
 			if (!othercon) {
 				printk("dlm: failed to allocate incoming socket\n");
 				up_write(&newcon->sock_sem);
 				result = -ENOMEM;
 				goto accept_err;
 			}
-			memset(othercon, 0, sizeof(*othercon));
 			othercon->nodeid = nodeid;
 			othercon->rx_action = receive_from_sock;
 			init_rwsem(&othercon->sock_sem);
@@ -523,7 +503,7 @@ static int accept_from_sock(struct connection *con)
 
 	return 0;
 
-      accept_err:
+accept_err:
 	up_read(&con->sock_sem);
 	sock_release(newsock);
 
@@ -533,7 +513,7 @@ static int accept_from_sock(struct connection *con)
 }
 
 /* Connect a new socket to its peer */
-static int connect_to_sock(struct connection *con)
+static void connect_to_sock(struct connection *con)
 {
 	int result = -EHOSTUNREACH;
 	struct sockaddr_storage saddr;
@@ -542,7 +522,7 @@ static int connect_to_sock(struct connection *con)
 
 	if (con->nodeid == 0) {
 		log_print("attempt to connect sock 0 foiled");
-		return 0;
+		return;
 	}
 
 	down_write(&con->sock_sem);
@@ -556,13 +536,14 @@ static int connect_to_sock(struct connection *con)
 	}
 
 	/* Create a socket to communicate with */
-	result = sock_create_kern(dlm_local_addr.ss_family, SOCK_STREAM, IPPROTO_TCP, &sock);
+	result = sock_create_kern(dlm_local_addr.ss_family, SOCK_STREAM,
+				  IPPROTO_TCP, &sock);
 	if (result < 0)
 		goto out_err;
 
 	memset(&saddr, 0, sizeof(saddr));
 	if (dlm_nodeid_to_addr(con->nodeid, &saddr))
-	        goto out_err;
+		goto out_err;
 
 	sock->sk->sk_user_data = con;
 	con->rx_action = receive_from_sock;
@@ -574,22 +555,13 @@ static int connect_to_sock(struct connection *con)
 	log_print("connecting to %d", con->nodeid);
 	result =
 		sock->ops->connect(sock, (struct sockaddr *)&saddr, addr_len,
-			       O_NONBLOCK);
+				   O_NONBLOCK);
 	if (result == -EINPROGRESS)
 		result = 0;
-	if (result != 0)
-		goto out_err;
-
-      out:
-	up_write(&con->sock_sem);
-	/*
-	 * Returning an error here means we've given up trying to connect to
-	 * a remote node, otherwise we return 0 and reschedule the connetion
-	 * attempt
-	 */
-	return result;
+	if (result == 0)
+		goto out;
 
-      out_err:
+out_err:
 	if (con->sock) {
 		sock_release(con->sock);
 		con->sock = NULL;
@@ -604,12 +576,15 @@ static int connect_to_sock(struct connection *con)
 		lowcomms_connect_sock(con);
 		result = 0;
 	}
-	goto out;
+out:
+	up_write(&con->sock_sem);
+	return;
 }
 
-static struct socket *create_listen_sock(struct connection *con, struct sockaddr_storage *saddr)
+static struct socket *create_listen_sock(struct connection *con,
+					 struct sockaddr_storage *saddr)
 {
-        struct socket *sock = NULL;
+	struct socket *sock = NULL;
 	mm_segment_t fs;
 	int result = 0;
 	int one = 1;
@@ -629,10 +604,12 @@ static struct socket *create_listen_sock(struct connection *con, struct sockaddr
 
 	fs = get_fs();
 	set_fs(get_ds());
-	result = sock_setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char *)&one, sizeof(one));
+	result = sock_setsockopt(sock, SOL_SOCKET, SO_REUSEADDR,
+				 (char *)&one, sizeof(one));
 	set_fs(fs);
 	if (result < 0) {
-		printk("dlm: Failed to set SO_REUSEADDR on socket: result=%d\n",result);
+		printk("dlm: Failed to set SO_REUSEADDR on socket: result=%d\n",
+		       result);
 	}
 	sock->sk->sk_user_data = con;
 	con->rx_action = accept_from_sock;
@@ -652,7 +629,8 @@ static struct socket *create_listen_sock(struct connection *con, struct sockaddr
 	fs = get_fs();
 	set_fs(get_ds());
 
-	result = sock_setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, (char *)&one, sizeof(one));
+	result = sock_setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE,
+				 (char *)&one, sizeof(one));
 	set_fs(fs);
 	if (result < 0) {
 		printk("dlm: Set keepalive failed: %d\n", result);
@@ -666,7 +644,7 @@ static struct socket *create_listen_sock(struct connection *con, struct sockaddr
 		goto create_out;
 	}
 
-      create_out:
+create_out:
 	return sock;
 }
 
@@ -679,10 +657,6 @@ static int listen_for_all(void)
 	int result = -EINVAL;
 
 	/* We don't support multi-homed hosts */
-	memset(con, 0, sizeof(*con));
-	init_rwsem(&con->sock_sem);
-	spin_lock_init(&con->writequeue_lock);
-	INIT_LIST_HEAD(&con->writequeue);
 	set_bit(CF_IS_OTHERCON, &con->flags);
 
 	sock = create_listen_sock(con, &dlm_local_addr);
@@ -731,16 +705,12 @@ void *dlm_lowcomms_get_buffer(int nodeid, int len,
 	int offset = 0;
 	int users = 0;
 
-	if (!atomic_read(&accepting))
-		return NULL;
-
 	con = nodeid2con(nodeid, allocation);
 	if (!con)
 		return NULL;
 
-	spin_lock(&con->writequeue_lock);
 	e = list_entry(con->writequeue.prev, struct writequeue_entry, list);
-	if (((struct list_head *) e == &con->writequeue) ||
+	if ((&e->list == &con->writequeue) ||
 	    (PAGE_CACHE_SIZE - e->end < len)) {
 		e = NULL;
 	} else {
@@ -751,7 +721,7 @@ void *dlm_lowcomms_get_buffer(int nodeid, int len,
 	spin_unlock(&con->writequeue_lock);
 
 	if (e) {
-	      got_one:
+	got_one:
 		if (users == 0)
 			kmap(e->page);
 		*ppc = page_address(e->page) + offset;
@@ -777,10 +747,6 @@ void dlm_lowcomms_commit_buffer(void *mh)
 	struct connection *con = e->con;
 	int users;
 
-	if (!atomic_read(&accepting))
-		return;
-
-	spin_lock(&con->writequeue_lock);
 	users = --e->users;
 	if (users)
 		goto out;
@@ -797,7 +763,7 @@ void dlm_lowcomms_commit_buffer(void *mh)
 	}
 	return;
 
-      out:
+out:
 	spin_unlock(&con->writequeue_lock);
 	return;
 }
@@ -809,7 +775,7 @@ static void free_entry(struct writequeue_entry *e)
 }
 
 /* Send a message */
-static int send_to_sock(struct connection *con)
+static void send_to_sock(struct connection *con)
 {
 	int ret = 0;
 	ssize_t(*sendpage) (struct socket *, struct page *, int, size_t, int);
@@ -846,7 +812,7 @@ static int send_to_sock(struct connection *con)
 		}
 		else {
 			/* Don't starve people filling buffers */
-			schedule();
+			cond_resched();
 		}
 
 		spin_lock(&con->writequeue_lock);
@@ -855,25 +821,26 @@ static int send_to_sock(struct connection *con)
 
 		if (e->len == 0 && e->users == 0) {
 			list_del(&e->list);
+			kunmap(e->page);
 			free_entry(e);
 			continue;
 		}
 	}
 	spin_unlock(&con->writequeue_lock);
-      out:
+out:
 	up_read(&con->sock_sem);
-	return ret;
+	return;
 
-      send_error:
+send_error:
 	up_read(&con->sock_sem);
-	close_connection(con, FALSE);
+	close_connection(con, false);
 	lowcomms_connect_sock(con);
-	return ret;
+	return;
 
-      out_connect:
+out_connect:
 	up_read(&con->sock_sem);
 	lowcomms_connect_sock(con);
-	return 0;
+	return;
 }
 
 static void clean_one_writequeue(struct connection *con)
@@ -904,12 +871,12 @@ int dlm_lowcomms_close(int nodeid)
 	con = nodeid2con(nodeid, 0);
 	if (con) {
 		clean_one_writequeue(con);
-		close_connection(con, TRUE);
+		close_connection(con, true);
 		atomic_set(&con->waiting_requests, 0);
 	}
 	return 0;
 
-      out:
+out:
 	return -1;
 }
 
@@ -940,7 +907,7 @@ static void process_sockets(void)
 	list_for_each_safe(list, temp, &read_sockets) {
 
 		struct connection *con =
-		    list_entry(list, struct connection, read_list);
+			list_entry(list, struct connection, read_list);
 		list_del(&con->read_list);
 		clear_bit(CF_READ_PENDING, &con->flags);
 
@@ -959,7 +926,7 @@ static void process_sockets(void)
 
 			/* Don't starve out everyone else */
 			if (++count >= MAX_RX_MSG_COUNT) {
-				schedule();
+				cond_resched();
 				count = 0;
 			}
 
@@ -977,20 +944,16 @@ static void process_output_queue(void)
 {
 	struct list_head *list;
 	struct list_head *temp;
-	int ret;
 
 	spin_lock_bh(&write_sockets_lock);
 	list_for_each_safe(list, temp, &write_sockets) {
 		struct connection *con =
-		    list_entry(list, struct connection, write_list);
+			list_entry(list, struct connection, write_list);
 		clear_bit(CF_WRITE_PENDING, &con->flags);
 		list_del(&con->write_list);
 
 		spin_unlock_bh(&write_sockets_lock);
-
-		ret = send_to_sock(con);
-		if (ret < 0) {
-		}
+		send_to_sock(con);
 		spin_lock_bh(&write_sockets_lock);
 	}
 	spin_unlock_bh(&write_sockets_lock);
@@ -1000,19 +963,16 @@ static void process_state_queue(void)
 {
 	struct list_head *list;
 	struct list_head *temp;
-	int ret;
 
 	spin_lock_bh(&state_sockets_lock);
 	list_for_each_safe(list, temp, &state_sockets) {
 		struct connection *con =
-		    list_entry(list, struct connection, state_list);
+			list_entry(list, struct connection, state_list);
 		list_del(&con->state_list);
 		clear_bit(CF_CONNECT_PENDING, &con->flags);
 		spin_unlock_bh(&state_sockets_lock);
 
-		ret = connect_to_sock(con);
-		if (ret < 0) {
-		}
+		connect_to_sock(con);
 		spin_lock_bh(&state_sockets_lock);
 	}
 	spin_unlock_bh(&state_sockets_lock);
@@ -1046,14 +1006,13 @@ static int read_list_empty(void)
 /* DLM Transport comms receive daemon */
 static int dlm_recvd(void *data)
 {
-	init_waitqueue_head(&lowcomms_recv_waitq);
 	init_waitqueue_entry(&lowcomms_recv_waitq_head, current);
 	add_wait_queue(&lowcomms_recv_waitq, &lowcomms_recv_waitq_head);
 
 	while (!kthread_should_stop()) {
 		set_current_state(TASK_INTERRUPTIBLE);
 		if (read_list_empty())
-			schedule();
+			cond_resched();
 		set_current_state(TASK_RUNNING);
 
 		process_sockets();
@@ -1081,14 +1040,13 @@ static int write_and_state_lists_empty(void)
 /* DLM Transport send daemon */
 static int dlm_sendd(void *data)
 {
-	init_waitqueue_head(&lowcomms_send_waitq);
 	init_waitqueue_entry(&lowcomms_send_waitq_head, current);
 	add_wait_queue(&lowcomms_send_waitq, &lowcomms_send_waitq_head);
 
 	while (!kthread_should_stop()) {
 		set_current_state(TASK_INTERRUPTIBLE);
 		if (write_and_state_lists_empty())
-			schedule();
+			cond_resched();
 		set_current_state(TASK_RUNNING);
 
 		process_state_queue();
@@ -1111,7 +1069,7 @@ static int daemons_start(void)
 
 	p = kthread_run(dlm_recvd, NULL, "dlm_recvd");
 	error = IS_ERR(p);
-       	if (error) {
+	if (error) {
 		log_print("can't start dlm_recvd %d", error);
 		return error;
 	}
@@ -1119,7 +1077,7 @@ static int daemons_start(void)
 
 	p = kthread_run(dlm_sendd, NULL, "dlm_sendd");
 	error = IS_ERR(p);
-       	if (error) {
+	if (error) {
 		log_print("can't start dlm_sendd %d", error);
 		kthread_stop(recv_task);
 		return error;
@@ -1141,21 +1099,20 @@ void dlm_lowcomms_stop(void)
 {
 	int i;
 
-	atomic_set(&accepting, 0);
-
-	/* Set all the activity flags to prevent any
+	/* Set all the flags to prevent any
 	   socket activity.
 	*/
 	for (i = 0; i < conn_array_size; i++) {
 		if (connections[i])
-			connections[i]->flags |= 0x7;
+			connections[i]->flags |= 0xFF;
 	}
+
 	daemons_stop();
 	clean_writequeues();
 
 	for (i = 0; i < conn_array_size; i++) {
 		if (connections[i]) {
-			close_connection(connections[i], TRUE);
+			close_connection(connections[i], true);
 			if (connections[i]->othercon)
 				kmem_cache_free(con_cache, connections[i]->othercon);
 			kmem_cache_free(con_cache, connections[i]);
@@ -1173,24 +1130,12 @@ int dlm_lowcomms_start(void)
 {
 	int error = 0;
 
-	error = -ENOTCONN;
-
-	/*
-	 * Temporarily initialise the waitq head so that lowcomms_send_message
-	 * doesn't crash if it gets called before the thread is fully
-	 * initialised
-	 */
-	init_waitqueue_head(&lowcomms_send_waitq);
-
 	error = -ENOMEM;
-	connections = kmalloc(sizeof(struct connection *) *
+	connections = kzalloc(sizeof(struct connection *) *
 			      NODE_INCREMENT, GFP_KERNEL);
 	if (!connections)
 		goto out;
 
-	memset(connections, 0,
-	       sizeof(struct connection *) * NODE_INCREMENT);
-
 	conn_array_size = NODE_INCREMENT;
 
 	if (dlm_our_addr(&dlm_local_addr, 0)) {
@@ -1203,7 +1148,8 @@ int dlm_lowcomms_start(void)
 	}
 
 	con_cache = kmem_cache_create("dlm_conn", sizeof(struct connection),
-				      __alignof__(struct connection), 0, NULL, NULL);
+				      __alignof__(struct connection), 0,
+				      NULL, NULL);
 	if (!con_cache)
 		goto fail_free_conn;
 
@@ -1217,40 +1163,20 @@ int dlm_lowcomms_start(void)
 	if (error)
 		goto fail_unlisten;
 
-	atomic_set(&accepting, 1);
-
 	return 0;
 
-      fail_unlisten:
-	close_connection(connections[0], 0);
+fail_unlisten:
+	close_connection(connections[0], false);
 	kmem_cache_free(con_cache, connections[0]);
 	kmem_cache_destroy(con_cache);
 
-      fail_free_conn:
+fail_free_conn:
 	kfree(connections);
 
-      out:
+out:
 	return error;
 }
 
-int dlm_lowcomms_init(void)
-{
-	INIT_LIST_HEAD(&read_sockets);
-	INIT_LIST_HEAD(&write_sockets);
-	INIT_LIST_HEAD(&state_sockets);
-
-	spin_lock_init(&read_sockets_lock);
-	spin_lock_init(&write_sockets_lock);
-	spin_lock_init(&state_sockets_lock);
-	init_MUTEX(&connections_lock);
-
-	return 0;
-}
-
-void dlm_lowcomms_exit(void)
-{
-}
-
 /*
  * Overrides for Emacs so that we follow Linus's tabbing style.
  * Emacs will notice this stuff at the end of the file and automatically
diff --git a/fs/dlm/lowcomms.h b/fs/dlm/lowcomms.h
index 2d045e0daae1f6a0d2c07e8e82b74b2004ed5602..a9a9618c0d3f2bcea8063a7217a7e2e036ed76fe 100644
--- a/fs/dlm/lowcomms.h
+++ b/fs/dlm/lowcomms.h
@@ -14,8 +14,6 @@
 #ifndef __LOWCOMMS_DOT_H__
 #define __LOWCOMMS_DOT_H__
 
-int dlm_lowcomms_init(void);
-void dlm_lowcomms_exit(void);
 int dlm_lowcomms_start(void);
 void dlm_lowcomms_stop(void);
 int dlm_lowcomms_close(int nodeid);
diff --git a/fs/dlm/main.c b/fs/dlm/main.c
index a8da8dc36b2eee898551cc0dc9a6492dfa56fca8..162fbae58fe556df3150f96a8423718e47261d9a 100644
--- a/fs/dlm/main.c
+++ b/fs/dlm/main.c
@@ -16,7 +16,6 @@
 #include "lock.h"
 #include "user.h"
 #include "memory.h"
-#include "lowcomms.h"
 #include "config.h"
 
 #ifdef CONFIG_DLM_DEBUG
@@ -47,20 +46,14 @@ static int __init init_dlm(void)
 	if (error)
 		goto out_config;
 
-	error = dlm_lowcomms_init();
-	if (error)
-		goto out_debug;
-
 	error = dlm_user_init();
 	if (error)
-		goto out_lowcomms;
+		goto out_debug;
 
 	printk("DLM (built %s %s) installed\n", __DATE__, __TIME__);
 
 	return 0;
 
- out_lowcomms:
-	dlm_lowcomms_exit();
  out_debug:
 	dlm_unregister_debugfs();
  out_config:
@@ -76,7 +69,6 @@ static int __init init_dlm(void)
 static void __exit exit_dlm(void)
 {
 	dlm_user_exit();
-	dlm_lowcomms_exit();
 	dlm_config_exit();
 	dlm_memory_exit();
 	dlm_lockspace_exit();