statd and some servers always need lockd to listen on UDP, so always
start both lockd listener sockets.
This probably leaks an svc_serv if the TCP listener can't be created,
but it will do for now.
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
I currently have this workaround lurking in my git repo. Is there some kind
of fix for this issue planned for 2.6.28?
This is only a reminder, not a suggested patch.
fs/lockd/svc.c | 31 +++++++++++++------------------
1 files changed, 13 insertions(+), 18 deletions(-)
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index a7b604c..36b6d03 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -213,25 +213,23 @@ 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
+ * Create UDP and TCP listeners for lockd. Even if we only
+ * have TCP NFS mounts and TCP NFSDs, some services (such
+ * as rpc.statd) still require UDP.
*/
-static int make_socks(struct svc_serv *serv, const unsigned short 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,
@@ -260,11 +258,8 @@ int lockd_up(const unsigned short proto)
/*
* 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,
@@ -281,7 +276,7 @@ int lockd_up(const unsigned short proto)
goto out;
}
- if ((error = make_socks(serv, proto)) < 0)
+ if ((error = make_socks(serv)) < 0)
goto destroy_and_out;
/*
--
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