diff options
Diffstat (limited to 'fs/lockd/svc.c')
| -rw-r--r-- | fs/lockd/svc.c | 37 |
1 files changed, 19 insertions, 18 deletions
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c index f013aed11533..36396fc058c5 100644 --- a/fs/lockd/svc.c +++ b/fs/lockd/svc.c @@ -189,25 +189,28 @@ lockd(void *vrqstp) } /* - * Make any sockets that are needed but not present. - * If nlm_udpport or nlm_tcpport were set as module - * options, make those sockets unconditionally + * Ensure there are active UDP and TCP listeners for lockd. + * + * Even if we have only TCP NFS mounts and/or TCP NFSDs, some + * local services (such as rpc.statd) still require UDP, and + * some NFS servers do not yet support NLM over TCP. + * + * Returns zero if all listeners are available; otherwise a + * negative errno value is returned. */ -static int make_socks(struct svc_serv *serv, int proto) +static int make_socks(struct svc_serv *serv) { static int warned; struct svc_xprt *xprt; int err = 0; - if (proto == IPPROTO_UDP || nlm_udpport) { - xprt = svc_find_xprt(serv, "udp", 0, 0); - if (!xprt) - err = svc_create_xprt(serv, "udp", nlm_udpport, - SVC_SOCK_DEFAULTS); - else - svc_xprt_put(xprt); - } - if (err >= 0 && (proto == IPPROTO_TCP || nlm_tcpport)) { + xprt = svc_find_xprt(serv, "udp", 0, 0); + if (!xprt) + err = svc_create_xprt(serv, "udp", nlm_udpport, + SVC_SOCK_DEFAULTS); + else + svc_xprt_put(xprt); + if (err >= 0) { xprt = svc_find_xprt(serv, "tcp", 0, 0); if (!xprt) err = svc_create_xprt(serv, "tcp", nlm_tcpport, @@ -237,11 +240,8 @@ lockd_up(int proto) /* Maybe add a 'family' option when IPv6 is supported ?? */ /* * Check whether we're already up and running. */ - if (nlmsvc_rqst) { - if (proto) - error = make_socks(nlmsvc_rqst->rq_server, proto); + if (nlmsvc_rqst) goto out; - } /* * Sanity check: if there's no pid, @@ -258,7 +258,8 @@ lockd_up(int proto) /* Maybe add a 'family' option when IPv6 is supported ?? */ goto out; } - if ((error = make_socks(serv, proto)) < 0) + error = make_socks(serv); + if (error < 0) goto destroy_and_out; /* |