rpcbind returns RPC_PROGNOTREGISTERED if it knows for certain that an
RPC program is not supported for a given transport. This is a
permanent and authoritative error, so the library's rpcbind query API
should never retry the query -- it will only get the same answer.
A similar change was submitted for libtirpc. Unlike rpcb_getaddr(3t),
mount.nfs's rpcbind client only retries once (with RPCB3PROC_GETADDR),
but an extra TCP socket in this case would leave another port in
TIME_WAIT. It's infrequent enough, but might as well get rid of it.
Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx>
---
support/nfs/getport.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/support/nfs/getport.c b/support/nfs/getport.c
index bc0f121..71f02f3 100644
--- a/support/nfs/getport.c
+++ b/support/nfs/getport.c
@@ -469,7 +469,7 @@ static unsigned short nfs_gp_rpcb_getaddr(CLIENT *client,
case RPC_SUCCESS:
if ((uaddr == NULL) || (uaddr[0] == '\0')) {
rpc_createerr.cf_stat = RPC_PROGNOTREGISTERED;
- continue;
+ return 0;
}
port = nfs_universal2port(uaddr);
--
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