From 617e82e10ccf96a13eb2efd5eac4abef44a87d02 Mon Sep 17 00:00:00 2001 From: David Teigland Date: Thu, 26 Apr 2007 13:46:49 -0500 Subject: [DLM] lowcomms style Replace some printk with log_print, and fix some simple cases of lines over 80. Also, return -ENOTCONN if lowcomms_start fails due to no local IP address being available. Signed-off-by: David Teigland Signed-off-by: Steven Whitehouse --- fs/dlm/lowcomms.c | 67 ++++++++++++++++++++++++++++++------------------------- 1 file changed, 37 insertions(+), 30 deletions(-) (limited to 'fs') diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c index 5c33233bc2d5..27970a58d29b 100644 --- a/fs/dlm/lowcomms.c +++ b/fs/dlm/lowcomms.c @@ -395,7 +395,8 @@ static void sctp_init_failed(void) } /* Something happened to an association */ -static void process_sctp_notification(struct connection *con, struct msghdr *msg, char *buf) +static void process_sctp_notification(struct connection *con, + struct msghdr *msg, char *buf) { union sctp_notification *sn = (union sctp_notification *)buf; @@ -422,7 +423,7 @@ static void process_sctp_notification(struct connection *con, struct msghdr *msg */ 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); sctp_init_failed(); return; } @@ -465,10 +466,12 @@ static void process_sctp_notification(struct connection *con, struct msghdr *msg /* Peel off a new sock */ parg.associd = sn->sn_assoc_change.sac_assoc_id; - ret = kernel_getsockopt(con->sock, IPPROTO_SCTP, SCTP_SOCKOPT_PEELOFF, + ret = kernel_getsockopt(con->sock, IPPROTO_SCTP, + SCTP_SOCKOPT_PEELOFF, (void *)&parg, &parglen); if (ret) { - log_print("Can't peel off a socket for connection %d to node %d: err=%d\n", + log_print("Can't peel off a socket for " + "connection %d to node %d: err=%d\n", parg.associd, nodeid, ret); } file = fget(parg.sd); @@ -478,7 +481,7 @@ static void process_sctp_notification(struct connection *con, struct msghdr *msg put_unused_fd(parg.sd); 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(CF_CONNECT_PENDING, &new_con->flags); @@ -587,7 +590,7 @@ static int receive_from_sock(struct connection *con) msg.msg_controllen = sizeof(incmsg); process_sctp_notification(con, &msg, - page_address(con->rx_page) + con->cb.base); + page_address(con->rx_page) + con->cb.base); mutex_unlock(&con->sock_mutex); return 0; } @@ -601,10 +604,10 @@ static int receive_from_sock(struct connection *con) con->cb.base, con->cb.len, PAGE_CACHE_SIZE); if (ret == -EBADMSG) { - printk(KERN_INFO "dlm: lowcomms: addr=%p, base=%u, len=%u, " - "iov_len=%u, iov_base[0]=%p, read=%d\n", - page_address(con->rx_page), con->cb.base, con->cb.len, - len, iov[0].iov_base, r); + log_print("lowcomms: addr=%p, base=%u, len=%u, " + "iov_len=%u, iov_base[0]=%p, read=%d", + page_address(con->rx_page), con->cb.base, con->cb.len, + len, iov[0].iov_base, r); } if (ret < 0) goto out_close; @@ -680,7 +683,7 @@ static int tcp_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"); + log_print("connect from non cluster node"); sock_release(newsock); mutex_unlock(&con->sock_mutex); return -1; @@ -705,7 +708,7 @@ static int tcp_accept_from_sock(struct connection *con) if (!othercon) { othercon = kmem_cache_zalloc(con_cache, GFP_KERNEL); if (!othercon) { - printk("dlm: failed to allocate incoming socket\n"); + log_print("failed to allocate incoming socket"); mutex_unlock(&newcon->sock_mutex); result = -ENOMEM; goto accept_err; @@ -748,7 +751,7 @@ accept_err: sock_release(newsock); if (result != -EAGAIN) - printk("dlm: error accepting connection from node: %d\n", result); + log_print("error accepting connection from node: %d", result); return result; } @@ -826,7 +829,8 @@ static void sctp_init_assoc(struct connection *con) ret = kernel_sendmsg(base_con->sock, &outmessage, iov, 1, len); if (ret < 0) { - log_print("Send first packet to node %d failed: %d", con->nodeid, ret); + log_print("Send first packet to node %d failed: %d", + con->nodeid, ret); /* Try again later */ clear_bit(CF_CONNECT_PENDING, &con->flags); @@ -929,9 +933,10 @@ static struct socket *tcp_create_listen_sock(struct connection *con, addr_len = sizeof(struct sockaddr_in6); /* Create a socket to communicate with */ - result = sock_create_kern(dlm_local_addr[0]->ss_family, SOCK_STREAM, IPPROTO_TCP, &sock); + result = sock_create_kern(dlm_local_addr[0]->ss_family, SOCK_STREAM, + IPPROTO_TCP, &sock); if (result < 0) { - printk("dlm: Can't create listening comms socket\n"); + log_print("Can't create listening comms socket"); goto create_out; } @@ -939,8 +944,7 @@ static struct socket *tcp_create_listen_sock(struct connection *con, (char *)&one, sizeof(one)); if (result < 0) { - printk("dlm: Failed to set SO_REUSEADDR on socket: result=%d\n", - result); + log_print("Failed to set SO_REUSEADDR on socket: %d", result); } sock->sk->sk_user_data = con; con->rx_action = tcp_accept_from_sock; @@ -951,7 +955,7 @@ static struct socket *tcp_create_listen_sock(struct connection *con, make_sockaddr(saddr, dlm_config.ci_tcp_port, &addr_len); result = sock->ops->bind(sock, (struct sockaddr *) saddr, addr_len); if (result < 0) { - printk("dlm: Can't bind to port %d\n", dlm_config.ci_tcp_port); + log_print("Can't bind to port %d", dlm_config.ci_tcp_port); sock_release(sock); sock = NULL; con->sock = NULL; @@ -960,12 +964,12 @@ static struct socket *tcp_create_listen_sock(struct connection *con, result = kernel_setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, (char *)&one, sizeof(one)); if (result < 0) { - printk("dlm: Set keepalive failed: %d\n", result); + log_print("Set keepalive failed: %d", result); } result = sock->ops->listen(sock, 5); if (result < 0) { - printk("dlm: Can't listen on port %d\n", dlm_config.ci_tcp_port); + log_print("Can't listen on port %d", dlm_config.ci_tcp_port); sock_release(sock); sock = NULL; goto create_out; @@ -994,8 +998,11 @@ static void init_local(void) } } -/* Bind to an IP address. SCTP allows multiple address so it can do multi-homing */ -static int add_sctp_bind_addr(struct connection *sctp_con, struct sockaddr_storage *addr, int addr_len, int num) +/* Bind to an IP address. SCTP allows multiple address so it can do + multi-homing */ +static int add_sctp_bind_addr(struct connection *sctp_con, + struct sockaddr_storage *addr, + int addr_len, int num) { int result = 0; @@ -1048,10 +1055,10 @@ static int sctp_listen_for_all(void) result = kernel_setsockopt(sock, SOL_SOCKET, SO_RCVBUF, (char *)&bufsize, sizeof(bufsize)); if (result) - log_print("Error increasing buffer space on socket: %d", result); + log_print("Error increasing buffer space on socket %d", result); result = kernel_setsockopt(sock, SOL_SCTP, SCTP_EVENTS, - (char *)&subscribe, sizeof(subscribe)); + (char *)&subscribe, sizeof(subscribe)); if (result < 0) { log_print("Failed to set SCTP_EVENTS on socket: result=%d", result); @@ -1102,7 +1109,8 @@ static int tcp_listen_for_all(void) /* We don't support multi-homed hosts */ if (dlm_local_addr[1] != NULL) { - log_print("TCP protocol can't handle multi-homed hosts, try SCTP"); + log_print("TCP protocol can't handle multi-homed hosts, " + "try SCTP"); return -EINVAL; } @@ -1148,8 +1156,7 @@ static struct writequeue_entry *new_writequeue_entry(struct connection *con, return entry; } -void *dlm_lowcomms_get_buffer(int nodeid, int len, - gfp_t allocation, char **ppc) +void *dlm_lowcomms_get_buffer(int nodeid, int len, gfp_t allocation, char **ppc) { struct connection *con; struct writequeue_entry *e; @@ -1253,8 +1260,7 @@ static void send_to_sock(struct connection *con) goto out; if (ret <= 0) goto send_error; - } - else { + } else { /* Don't starve people filling buffers */ cond_resched(); } @@ -1426,6 +1432,7 @@ int dlm_lowcomms_start(void) init_local(); if (!dlm_local_count) { + error = -ENOTCONN; log_print("no local IP address has been set"); goto out; } -- cgit v1.2.3