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Diffstat (limited to 'net/sunrpc/clnt.c')
-rw-r--r--net/sunrpc/clnt.c145
1 files changed, 76 insertions, 69 deletions
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index c95a61736d1..6d7221fe990 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -42,6 +42,10 @@
# define RPCDBG_FACILITY RPCDBG_CALL
#endif
+#define dprint_status(t) \
+ dprintk("RPC: %5u %s (status %d)\n", t->tk_pid, \
+ __FUNCTION__, t->tk_status)
+
static DECLARE_WAIT_QUEUE_HEAD(destroy_wait);
@@ -106,8 +110,8 @@ static struct rpc_clnt * rpc_new_client(struct rpc_xprt *xprt, char *servname, s
int err;
int len;
- dprintk("RPC: creating %s client for %s (xprt %p)\n",
- program->name, servname, xprt);
+ dprintk("RPC: creating %s client for %s (xprt %p)\n",
+ program->name, servname, xprt);
err = -EINVAL;
if (!xprt)
@@ -220,7 +224,7 @@ struct rpc_clnt *rpc_create(struct rpc_create_args *args)
xprt->resvport = 0;
dprintk("RPC: creating %s client for %s (xprt %p)\n",
- args->program->name, args->servername, xprt);
+ args->program->name, args->servername, xprt);
clnt = rpc_new_client(xprt, args->servername, args->program,
args->version, args->authflavor);
@@ -245,6 +249,8 @@ struct rpc_clnt *rpc_create(struct rpc_create_args *args)
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;
return clnt;
}
@@ -288,7 +294,7 @@ out_no_path:
out_no_stats:
kfree(new);
out_no_clnt:
- dprintk("RPC: %s returned error %d\n", __FUNCTION__, err);
+ dprintk("RPC: %s: returned error %d\n", __FUNCTION__, err);
return ERR_PTR(err);
}
@@ -301,7 +307,7 @@ out_no_clnt:
int
rpc_shutdown_client(struct rpc_clnt *clnt)
{
- dprintk("RPC: shutting down %s client for %s, tasks=%d\n",
+ dprintk("RPC: shutting down %s client for %s, tasks=%d\n",
clnt->cl_protname, clnt->cl_server,
atomic_read(&clnt->cl_users));
@@ -336,7 +342,7 @@ rpc_destroy_client(struct rpc_clnt *clnt)
return 1;
BUG_ON(atomic_read(&clnt->cl_users) != 0);
- dprintk("RPC: destroying %s client for %s\n",
+ dprintk("RPC: destroying %s client for %s\n",
clnt->cl_protname, clnt->cl_server);
if (clnt->cl_auth) {
rpcauth_destroy(clnt->cl_auth);
@@ -366,8 +372,8 @@ out_free:
void
rpc_release_client(struct rpc_clnt *clnt)
{
- dprintk("RPC: rpc_release_client(%p, %d)\n",
- clnt, atomic_read(&clnt->cl_users));
+ dprintk("RPC: rpc_release_client(%p, %d)\n",
+ clnt, atomic_read(&clnt->cl_users));
if (!atomic_dec_and_test(&clnt->cl_users))
return;
@@ -486,17 +492,13 @@ int rpc_call_sync(struct rpc_clnt *clnt, struct rpc_message *msg, int flags)
/* Mask signals on RPC calls _and_ GSS_AUTH upcalls */
rpc_task_sigmask(task, &oldset);
- rpc_call_setup(task, msg, 0);
-
/* Set up the call info struct and execute the task */
+ rpc_call_setup(task, msg, 0);
+ if (task->tk_status == 0) {
+ atomic_inc(&task->tk_count);
+ rpc_execute(task);
+ }
status = task->tk_status;
- if (status != 0)
- goto out;
- atomic_inc(&task->tk_count);
- status = rpc_execute(task);
- if (status == 0)
- status = task->tk_status;
-out:
rpc_put_task(task);
rpc_restore_sigmask(&oldset);
return status;
@@ -658,9 +660,10 @@ call_start(struct rpc_task *task)
{
struct rpc_clnt *clnt = task->tk_client;
- dprintk("RPC: %4d call_start %s%d proc %d (%s)\n", task->tk_pid,
- clnt->cl_protname, clnt->cl_vers, task->tk_msg.rpc_proc->p_proc,
- (RPC_IS_ASYNC(task) ? "async" : "sync"));
+ dprintk("RPC: %5u call_start %s%d proc %d (%s)\n", task->tk_pid,
+ clnt->cl_protname, clnt->cl_vers,
+ task->tk_msg.rpc_proc->p_proc,
+ (RPC_IS_ASYNC(task) ? "async" : "sync"));
/* Increment call count */
task->tk_msg.rpc_proc->p_count++;
@@ -674,7 +677,7 @@ call_start(struct rpc_task *task)
static void
call_reserve(struct rpc_task *task)
{
- dprintk("RPC: %4d call_reserve\n", task->tk_pid);
+ dprint_status(task);
if (!rpcauth_uptodatecred(task)) {
task->tk_action = call_refresh;
@@ -694,8 +697,7 @@ call_reserveresult(struct rpc_task *task)
{
int status = task->tk_status;
- dprintk("RPC: %4d call_reserveresult (status %d)\n",
- task->tk_pid, task->tk_status);
+ dprint_status(task);
/*
* After a call to xprt_reserve(), we must have either
@@ -749,8 +751,8 @@ call_allocate(struct rpc_task *task)
struct rpc_xprt *xprt = task->tk_xprt;
unsigned int bufsiz;
- dprintk("RPC: %4d call_allocate (status %d)\n",
- task->tk_pid, task->tk_status);
+ dprint_status(task);
+
task->tk_action = call_bind;
if (req->rq_buffer)
return;
@@ -761,7 +763,8 @@ call_allocate(struct rpc_task *task)
if (xprt->ops->buf_alloc(task, bufsiz << 1) != NULL)
return;
- printk(KERN_INFO "RPC: buffer allocation failed for task %p\n", task);
+
+ dprintk("RPC: %5u rpc_buffer allocation failed\n", task->tk_pid);
if (RPC_IS_ASYNC(task) || !signalled()) {
xprt_release(task);
@@ -798,8 +801,7 @@ call_encode(struct rpc_task *task)
kxdrproc_t encode;
__be32 *p;
- dprintk("RPC: %4d call_encode (status %d)\n",
- task->tk_pid, task->tk_status);
+ dprint_status(task);
/* Default buffer setup */
bufsiz = req->rq_bufsize >> 1;
@@ -845,8 +847,7 @@ call_bind(struct rpc_task *task)
{
struct rpc_xprt *xprt = task->tk_xprt;
- dprintk("RPC: %4d call_bind (status %d)\n",
- task->tk_pid, task->tk_status);
+ dprint_status(task);
task->tk_action = call_connect;
if (!xprt_bound(xprt)) {
@@ -865,8 +866,7 @@ call_bind_status(struct rpc_task *task)
int status = -EACCES;
if (task->tk_status >= 0) {
- dprintk("RPC: %4d call_bind_status (status %d)\n",
- task->tk_pid, task->tk_status);
+ dprint_status(task);
task->tk_status = 0;
task->tk_action = call_connect;
return;
@@ -874,24 +874,24 @@ call_bind_status(struct rpc_task *task)
switch (task->tk_status) {
case -EACCES:
- dprintk("RPC: %4d remote rpcbind: RPC program/version unavailable\n",
- task->tk_pid);
+ dprintk("RPC: %5u remote rpcbind: RPC program/version "
+ "unavailable\n", task->tk_pid);
rpc_delay(task, 3*HZ);
goto retry_timeout;
case -ETIMEDOUT:
- dprintk("RPC: %4d rpcbind request timed out\n",
+ dprintk("RPC: %5u rpcbind request timed out\n",
task->tk_pid);
goto retry_timeout;
case -EPFNOSUPPORT:
- dprintk("RPC: %4d remote rpcbind service unavailable\n",
+ dprintk("RPC: %5u remote rpcbind service unavailable\n",
task->tk_pid);
break;
case -EPROTONOSUPPORT:
- dprintk("RPC: %4d remote rpcbind version 2 unavailable\n",
+ dprintk("RPC: %5u remote rpcbind version 2 unavailable\n",
task->tk_pid);
break;
default:
- dprintk("RPC: %4d unrecognized rpcbind error (%d)\n",
+ dprintk("RPC: %5u unrecognized rpcbind error (%d)\n",
task->tk_pid, -task->tk_status);
status = -EIO;
}
@@ -911,7 +911,7 @@ call_connect(struct rpc_task *task)
{
struct rpc_xprt *xprt = task->tk_xprt;
- dprintk("RPC: %4d call_connect xprt %p %s connected\n",
+ dprintk("RPC: %5u call_connect xprt %p %s connected\n",
task->tk_pid, xprt,
(xprt_connected(xprt) ? "is" : "is not"));
@@ -933,8 +933,7 @@ call_connect_status(struct rpc_task *task)
struct rpc_clnt *clnt = task->tk_client;
int status = task->tk_status;
- dprintk("RPC: %5u call_connect_status (status %d)\n",
- task->tk_pid, task->tk_status);
+ dprint_status(task);
task->tk_status = 0;
if (status >= 0) {
@@ -966,8 +965,7 @@ call_connect_status(struct rpc_task *task)
static void
call_transmit(struct rpc_task *task)
{
- dprintk("RPC: %4d call_transmit (status %d)\n",
- task->tk_pid, task->tk_status);
+ dprint_status(task);
task->tk_action = call_status;
if (task->tk_status < 0)
@@ -1028,8 +1026,7 @@ call_status(struct rpc_task *task)
if (req->rq_received > 0 && !req->rq_bytes_sent)
task->tk_status = req->rq_received;
- dprintk("RPC: %4d call_status (status %d)\n",
- task->tk_pid, task->tk_status);
+ dprint_status(task);
status = task->tk_status;
if (status >= 0) {
@@ -1080,11 +1077,11 @@ call_timeout(struct rpc_task *task)
struct rpc_clnt *clnt = task->tk_client;
if (xprt_adjust_timeout(task->tk_rqstp) == 0) {
- dprintk("RPC: %4d call_timeout (minor)\n", task->tk_pid);
+ dprintk("RPC: %5u call_timeout (minor)\n", task->tk_pid);
goto retry;
}
- dprintk("RPC: %4d call_timeout (major)\n", task->tk_pid);
+ dprintk("RPC: %5u call_timeout (major)\n", task->tk_pid);
task->tk_timeouts++;
if (RPC_IS_SOFT(task)) {
@@ -1118,8 +1115,8 @@ call_decode(struct rpc_task *task)
kxdrproc_t decode = task->tk_msg.rpc_proc->p_decode;
__be32 *p;
- dprintk("RPC: %4d call_decode (status %d)\n",
- task->tk_pid, task->tk_status);
+ dprintk("RPC: %5u call_decode (status %d)\n",
+ task->tk_pid, task->tk_status);
if (task->tk_flags & RPC_CALL_MAJORSEEN) {
printk(KERN_NOTICE "%s: server %s OK\n",
@@ -1133,8 +1130,8 @@ call_decode(struct rpc_task *task)
clnt->cl_stats->rpcretrans++;
goto out_retry;
}
- dprintk("%s: too small RPC reply size (%d bytes)\n",
- clnt->cl_protname, task->tk_status);
+ dprintk("RPC: %s: too small RPC reply size (%d bytes)\n",
+ clnt->cl_protname, task->tk_status);
task->tk_action = call_timeout;
goto out_retry;
}
@@ -1166,8 +1163,8 @@ call_decode(struct rpc_task *task)
task->tk_msg.rpc_resp);
unlock_kernel();
}
- dprintk("RPC: %4d call_decode result %d\n", task->tk_pid,
- task->tk_status);
+ dprintk("RPC: %5u call_decode result %d\n", task->tk_pid,
+ task->tk_status);
return;
out_retry:
req->rq_received = req->rq_private_buf.len = 0;
@@ -1180,7 +1177,7 @@ out_retry:
static void
call_refresh(struct rpc_task *task)
{
- dprintk("RPC: %4d call_refresh\n", task->tk_pid);
+ dprint_status(task);
xprt_release(task); /* Must do to obtain new XID */
task->tk_action = call_refreshresult;
@@ -1196,8 +1193,8 @@ static void
call_refreshresult(struct rpc_task *task)
{
int status = task->tk_status;
- dprintk("RPC: %4d call_refreshresult (status %d)\n",
- task->tk_pid, task->tk_status);
+
+ dprint_status(task);
task->tk_status = 0;
task->tk_action = call_reserve;
@@ -1275,11 +1272,15 @@ call_verify(struct rpc_task *task)
case RPC_AUTH_ERROR:
break;
case RPC_MISMATCH:
- dprintk("%s: RPC call version mismatch!\n", __FUNCTION__);
+ dprintk("RPC: %5u %s: RPC call version "
+ "mismatch!\n",
+ task->tk_pid, __FUNCTION__);
error = -EPROTONOSUPPORT;
goto out_err;
default:
- dprintk("%s: RPC call rejected, unknown error: %x\n", __FUNCTION__, n);
+ dprintk("RPC: %5u %s: RPC call rejected, "
+ "unknown error: %x\n",
+ task->tk_pid, __FUNCTION__, n);
goto out_eio;
}
if (--len < 0)
@@ -1292,8 +1293,8 @@ call_verify(struct rpc_task *task)
if (!task->tk_cred_retry)
break;
task->tk_cred_retry--;
- dprintk("RPC: %4d call_verify: retry stale creds\n",
- task->tk_pid);
+ dprintk("RPC: %5u %s: retry stale creds\n",
+ task->tk_pid, __FUNCTION__);
rpcauth_invalcred(task);
task->tk_action = call_refresh;
goto out_retry;
@@ -1303,8 +1304,8 @@ call_verify(struct rpc_task *task)
if (!task->tk_garb_retry)
break;
task->tk_garb_retry--;
- dprintk("RPC: %4d call_verify: retry garbled creds\n",
- task->tk_pid);
+ dprintk("RPC: %5u %s: retry garbled creds\n",
+ task->tk_pid, __FUNCTION__);
task->tk_action = call_bind;
goto out_retry;
case RPC_AUTH_TOOWEAK:
@@ -1315,8 +1316,8 @@ call_verify(struct rpc_task *task)
printk(KERN_WARNING "call_verify: unknown auth error: %x\n", n);
error = -EIO;
}
- dprintk("RPC: %4d call_verify: call rejected %d\n",
- task->tk_pid, n);
+ dprintk("RPC: %5u %s: call rejected %d\n",
+ task->tk_pid, __FUNCTION__, n);
goto out_err;
}
if (!(p = rpcauth_checkverf(task, p))) {
@@ -1330,20 +1331,24 @@ call_verify(struct rpc_task *task)
case RPC_SUCCESS:
return p;
case RPC_PROG_UNAVAIL:
- dprintk("RPC: call_verify: program %u is unsupported by server %s\n",
+ dprintk("RPC: %5u %s: program %u is unsupported by server %s\n",
+ task->tk_pid, __FUNCTION__,
(unsigned int)task->tk_client->cl_prog,
task->tk_client->cl_server);
error = -EPFNOSUPPORT;
goto out_err;
case RPC_PROG_MISMATCH:
- dprintk("RPC: call_verify: program %u, version %u unsupported by server %s\n",
+ dprintk("RPC: %5u %s: program %u, version %u unsupported by "
+ "server %s\n", task->tk_pid, __FUNCTION__,
(unsigned int)task->tk_client->cl_prog,
(unsigned int)task->tk_client->cl_vers,
task->tk_client->cl_server);
error = -EPROTONOSUPPORT;
goto out_err;
case RPC_PROC_UNAVAIL:
- dprintk("RPC: call_verify: proc %p unsupported by program %u, version %u on server %s\n",
+ dprintk("RPC: %5u %s: proc %p unsupported by program %u, "
+ "version %u on server %s\n",
+ task->tk_pid, __FUNCTION__,
task->tk_msg.rpc_proc,
task->tk_client->cl_prog,
task->tk_client->cl_vers,
@@ -1351,7 +1356,8 @@ call_verify(struct rpc_task *task)
error = -EOPNOTSUPP;
goto out_err;
case RPC_GARBAGE_ARGS:
- dprintk("RPC: %4d %s: server saw garbage\n", task->tk_pid, __FUNCTION__);
+ dprintk("RPC: %5u %s: server saw garbage\n",
+ task->tk_pid, __FUNCTION__);
break; /* retry */
default:
printk(KERN_WARNING "call_verify: server accept status: %x\n", n);
@@ -1362,7 +1368,8 @@ out_garbage:
task->tk_client->cl_stats->rpcgarbage++;
if (task->tk_garb_retry) {
task->tk_garb_retry--;
- dprintk("RPC %s: retrying %4d\n", __FUNCTION__, task->tk_pid);
+ dprintk("RPC: %5u %s: retrying\n",
+ task->tk_pid, __FUNCTION__);
task->tk_action = call_bind;
out_retry:
return ERR_PTR(-EAGAIN);