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authorChuck Lever <chuck.lever@oracle.com>2007-03-30 00:48:33 +0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2007-05-01 09:17:16 +0400
commit00a6e7bbf990e3a5e59a9a1e6a68e99c94fe001c (patch)
treefb0427a8b08702c99bf5eba9c6d5bb16ea4ee2bc
parent4c2eaf073f0cc2b5bf593b8133c078b9d9406e95 (diff)
downloadlinux-00a6e7bbf990e3a5e59a9a1e6a68e99c94fe001c.tar.xz
SUNRPC: RPC client should retry with different versions of rpcbind
Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
-rw-r--r--fs/Kconfig12
-rw-r--r--net/sunrpc/clnt.c6
2 files changed, 16 insertions, 2 deletions
diff --git a/fs/Kconfig b/fs/Kconfig
index a42f767dcdd5..20bec7767dd8 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -1734,6 +1734,18 @@ config SUNRPC
config SUNRPC_GSS
tristate
+config SUNRPC_BIND34
+ bool "Support for rpcbind versions 3 & 4 (EXPERIMENTAL)"
+ depends on SUNRPC && EXPERIMENTAL
+ help
+ Provides kernel support for querying rpcbind servers via versions 3
+ and 4 of the rpcbind protocol. The kernel automatically falls back
+ to version 2 if a remote rpcbind service does not support versions
+ 3 or 4.
+
+ If unsure, say N to get traditional behavior (version 2 rpcbind
+ requests only).
+
config RPCSEC_GSS_KRB5
tristate "Secure RPC: Kerberos V mechanism (EXPERIMENTAL)"
depends on SUNRPC && EXPERIMENTAL
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index e7dc09ecc470..d8fbee40a19c 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -902,9 +902,11 @@ call_bind_status(struct rpc_task *task)
task->tk_pid);
break;
case -EPROTONOSUPPORT:
- dprintk("RPC: %5u remote rpcbind version 2 unavailable\n",
+ dprintk("RPC: %5u remote rpcbind version unavailable, retrying\n",
task->tk_pid);
- break;
+ task->tk_status = 0;
+ task->tk_action = call_bind;
+ return;
default:
dprintk("RPC: %5u unrecognized rpcbind error (%d)\n",
task->tk_pid, -task->tk_status);