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authorChuck Lever <chuck.lever@oracle.com>2006-08-23 00:06:16 (GMT)
committerTrond Myklebust <Trond.Myklebust@netapp.com>2006-09-23 03:24:44 (GMT)
commitbbf7c1dd2ae2b4040b41b1065ee9b1b6905b1605 (patch)
treeb1867e722c1cc679b1834feeeeb21195f57dc873
parent5b1eacbcd78930d976eb50a93f1779d311b553d1 (diff)
downloadlinux-fsl-qoriq-bbf7c1dd2ae2b4040b41b1065ee9b1b6905b1605.tar.xz
SUNRPC: Introduce transport switch callout for pluggable rpcbind
Introduce a clean transport switch API for plugging in different types of rpcbind mechanisms. For instance, rpcbind can cleanly replace the existing portmapper client, or a transport can choose to implement RPC binding any way it likes. Test plan: Destructive testing (unplugging the network temporarily). Connectathon with UDP and TCP. NFSv2/3 and NFSv4 mounting should be carefully checked. Probably need to rig a server where certain services aren't running, or that returns an error for some typical operation. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
-rw-r--r--include/linux/sunrpc/clnt.h2
-rw-r--r--include/linux/sunrpc/xprt.h1
-rw-r--r--net/sunrpc/clnt.c3
-rw-r--r--net/sunrpc/pmap_clnt.c4
-rw-r--r--net/sunrpc/xprtsock.c2
5 files changed, 7 insertions, 5 deletions
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index 00e9dba..2e68ac0 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -106,7 +106,7 @@ struct rpc_clnt *rpc_clone_client(struct rpc_clnt *);
int rpc_shutdown_client(struct rpc_clnt *);
int rpc_destroy_client(struct rpc_clnt *);
void rpc_release_client(struct rpc_clnt *);
-void rpc_getport(struct rpc_task *, struct rpc_clnt *);
+void rpc_getport(struct rpc_task *);
int rpc_register(u32, u32, int, unsigned short, int *);
void rpc_call_setup(struct rpc_task *, struct rpc_message *, int);
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index 4ce8261..8412255 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -105,6 +105,7 @@ struct rpc_xprt_ops {
void (*set_buffer_size)(struct rpc_xprt *xprt, size_t sndsize, size_t rcvsize);
int (*reserve_xprt)(struct rpc_task *task);
void (*release_xprt)(struct rpc_xprt *xprt, struct rpc_task *task);
+ void (*rpcbind)(struct rpc_task *task);
void (*set_port)(struct rpc_xprt *xprt, unsigned short port);
void (*connect)(struct rpc_task *task);
void * (*buf_alloc)(struct rpc_task *task, size_t size);
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index cee5041..d003c2f 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -774,7 +774,6 @@ call_encode(struct rpc_task *task)
static void
call_bind(struct rpc_task *task)
{
- struct rpc_clnt *clnt = task->tk_client;
struct rpc_xprt *xprt = task->tk_xprt;
dprintk("RPC: %4d call_bind (status %d)\n",
@@ -784,7 +783,7 @@ call_bind(struct rpc_task *task)
if (!xprt_bound(xprt)) {
task->tk_action = call_bind_status;
task->tk_timeout = xprt->bind_timeout;
- rpc_getport(task, clnt);
+ xprt->ops->rpcbind(task);
}
}
diff --git a/net/sunrpc/pmap_clnt.c b/net/sunrpc/pmap_clnt.c
index 0efcbf1..f7b279a 100644
--- a/net/sunrpc/pmap_clnt.c
+++ b/net/sunrpc/pmap_clnt.c
@@ -81,13 +81,13 @@ static inline void pmap_wake_portmap_waiters(struct rpc_xprt *xprt)
/**
* rpc_getport - obtain the port for a given RPC service on a given host
* @task: task that is waiting for portmapper request
- * @clnt: controlling rpc_clnt
*
* This one can be called for an ongoing RPC request, and can be used in
* an async (rpciod) context.
*/
-void rpc_getport(struct rpc_task *task, struct rpc_clnt *clnt)
+void rpc_getport(struct rpc_task *task)
{
+ struct rpc_clnt *clnt = task->tk_client;
struct rpc_xprt *xprt = task->tk_xprt;
struct sockaddr_in *sap = &xprt->addr;
struct portmap_args *map;
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 123ac1e..4c98b89 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -1262,6 +1262,7 @@ static struct rpc_xprt_ops xs_udp_ops = {
.set_buffer_size = xs_udp_set_buffer_size,
.reserve_xprt = xprt_reserve_xprt_cong,
.release_xprt = xprt_release_xprt_cong,
+ .rpcbind = rpc_getport,
.set_port = xs_set_port,
.connect = xs_connect,
.buf_alloc = rpc_malloc,
@@ -1278,6 +1279,7 @@ static struct rpc_xprt_ops xs_udp_ops = {
static struct rpc_xprt_ops xs_tcp_ops = {
.reserve_xprt = xprt_reserve_xprt,
.release_xprt = xs_tcp_release_xprt,
+ .rpcbind = rpc_getport,
.set_port = xs_set_port,
.connect = xs_connect,
.buf_alloc = rpc_malloc,