SUNRPC: Kill rpc_clnt->cl_oneshot
Replace it with explicit calls to rpc_shutdown_client() or
rpc_destroy_client() (for the case of asynchronous calls).
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index fb65249..34662df 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -249,8 +249,6 @@
clnt->cl_intr = 1;
if (args->flags & RPC_CLNT_CREATE_AUTOBIND)
clnt->cl_autobind = 1;
- if (args->flags & RPC_CLNT_CREATE_ONESHOT)
- clnt->cl_oneshot = 1;
if (args->flags & RPC_CLNT_CREATE_DISCRTRY)
clnt->cl_discrtry = 1;
@@ -285,7 +283,6 @@
new->cl_xprt = xprt_get(clnt->cl_xprt);
/* Turn off autobind on clones */
new->cl_autobind = 0;
- new->cl_oneshot = 0;
INIT_LIST_HEAD(&new->cl_tasks);
spin_lock_init(&new->cl_lock);
rpc_init_rtt(&new->cl_rtt_default, clnt->cl_xprt->timeout.to_initval);
@@ -304,8 +301,7 @@
/*
* Properly shut down an RPC client, terminating all outstanding
- * requests. Note that we must be certain that cl_oneshot is cleared,
- * or else the client would be destroyed when the last task releases it.
+ * requests.
*/
int
rpc_shutdown_client(struct rpc_clnt *clnt)
@@ -314,8 +310,6 @@
clnt->cl_protname, clnt->cl_server);
while (!list_empty(&clnt->cl_tasks)) {
- /* Don't let rpc_release_client destroy us */
- clnt->cl_oneshot = 0;
rpc_killall_tasks(clnt);
wait_event_timeout(destroy_wait,
list_empty(&clnt->cl_tasks), 1*HZ);
@@ -366,8 +360,6 @@
if (list_empty(&clnt->cl_tasks))
wake_up(&destroy_wait);
- if (clnt->cl_oneshot)
- rpc_destroy_client(clnt);
kref_put(&clnt->cl_kref, rpc_free_client);
}
diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c
index 6c7aa8a..00853a3 100644
--- a/net/sunrpc/rpcb_clnt.c
+++ b/net/sunrpc/rpcb_clnt.c
@@ -184,8 +184,7 @@
.program = &rpcb_program,
.version = version,
.authflavor = RPC_AUTH_UNIX,
- .flags = (RPC_CLNT_CREATE_ONESHOT |
- RPC_CLNT_CREATE_NOPING),
+ .flags = RPC_CLNT_CREATE_NOPING,
};
((struct sockaddr_in *)srvaddr)->sin_port = htons(RPCBIND_PORT);
@@ -238,6 +237,7 @@
error = rpc_call_sync(rpcb_clnt, &msg, 0);
+ rpc_shutdown_client(rpcb_clnt);
if (error < 0)
printk(KERN_WARNING "RPC: failed to contact local rpcbind "
"server (errno %d).\n", -error);
@@ -286,6 +286,7 @@
return PTR_ERR(rpcb_clnt);
status = rpc_call_sync(rpcb_clnt, &msg, 0);
+ rpc_shutdown_client(rpcb_clnt);
if (status >= 0) {
if (map.r_port != 0)
@@ -379,6 +380,7 @@
}
child = rpc_run_task(rpcb_clnt, RPC_TASK_ASYNC, &rpcb_getport_ops, map);
+ rpc_destroy_client(rpcb_clnt);
if (IS_ERR(child)) {
status = -EIO;
dprintk("RPC: %5u rpcb_getport rpc_run_task failed\n",
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index bb12983..d95fe4e 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -876,9 +876,7 @@
}
/*
- * Create a new task for the specified client. We have to
- * clean up after an allocation failure, as the client may
- * have specified "oneshot".
+ * Create a new task for the specified client.
*/
struct rpc_task *rpc_new_task(struct rpc_clnt *clnt, int flags, const struct rpc_call_ops *tk_ops, void *calldata)
{
@@ -886,7 +884,7 @@
task = rpc_alloc_task();
if (!task)
- goto cleanup;
+ goto out;
rpc_init_task(task, clnt, flags, tk_ops, calldata);
@@ -894,14 +892,6 @@
task->tk_flags |= RPC_TASK_DYNAMIC;
out:
return task;
-
-cleanup:
- /* Check whether to release the client */
- if (clnt) {
- kref_get(&clnt->cl_kref); /* pretend we were used ... */
- rpc_release_client(clnt);
- }
- goto out;
}