dlm: fix socket fd translation

The code to set up sctp sockets was not using the sockfd_lookup()
and sockfd_put() routines to translate an fd to a socket.  The
direct fget and fput calls were resulting in error messages from
alloc_fd().

Also clean up two log messages and remove a third, related to
setting up sctp associations.

Signed-off-by: David Teigland <teigland@redhat.com>

diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index a3350e4c8184212d0ad9a5b4f759ec4b3e0a8d55..70736eb4b51652e9ad64078180ffc8c154265df4 100644 (file)
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -459,9 +459,9 @@ static void process_sctp_notification(struct connection *con,
                        int prim_len, ret;
                        int addr_len;
                        struct connection *new_con;
-                       struct file *file;
                        sctp_peeloff_arg_t parg;
                        int parglen = sizeof(parg);
+                       int err;
 
                        /*
                         * We get this before any data for an association.
@@ -516,19 +516,22 @@ static void process_sctp_notification(struct connection *con,
                        ret = kernel_getsockopt(con->sock, IPPROTO_SCTP,
                                                SCTP_SOCKOPT_PEELOFF,
                                                (void *)&parg, &parglen);
-                       if (ret) {
+                       if (ret < 0) {
                                log_print("Can't peel off a socket for "
-                                         "connection %d to node %d: err=%d\n",
+                                         "connection %d to node %d: err=%d",
                                          parg.associd, nodeid, ret);
+                               return;
+                       }
+                       new_con->sock = sockfd_lookup(parg.sd, &err);
+                       if (!new_con->sock) {
+                               log_print("sockfd_lookup error %d", err);
+                               return;
                        }
-                       file = fget(parg.sd);
-                       new_con->sock = SOCKET_I(file->f_dentry->d_inode);
                        add_sock(new_con->sock, new_con);
-                       fput(file);
-                       put_unused_fd(parg.sd);
+                       sockfd_put(new_con->sock);
 
-                       log_print("got new/restarted association %d nodeid %d",
-                                (int)sn->sn_assoc_change.sac_assoc_id, nodeid);
+                       log_print("connecting to %d sctp association %d",
+                                nodeid, (int)sn->sn_assoc_change.sac_assoc_id);
 
                        /* Send any pending writes */
                        clear_bit(CF_CONNECT_PENDING, &new_con->flags);
@@ -841,8 +844,6 @@ static void sctp_init_assoc(struct connection *con)
        if (con->retries++ > MAX_CONNECT_RETRIES)
                return;
 
-       log_print("Initiating association with node %d", con->nodeid);
-
        if (nodeid_to_addr(con->nodeid, (struct sockaddr *)&rem_addr)) {
                log_print("no address for nodeid %d", con->nodeid);
                return;