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SUNRPC: Kill rpc_clnt->cl_oneshot

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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>
This commit is contained in:
Trond Myklebust 2007-06-09 19:49:36 -04:00
parent 848f1fe6be
commit 90c5755ff5
6 changed files with 14 additions and 32 deletions
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2
fs/lockd/mon.c
View File

@ -61,6 +61,7 @@ nsm_mon_unmon(struct nsm_handle *nsm, u32 proc, struct nsm_res *res)
status);
else
status = 0;
rpc_shutdown_client(clnt);
out:
return status;
}
@ -138,7 +139,6 @@ nsm_create(void)
.program = &nsm_program,
.version = SM_VERSION,
.authflavor = RPC_AUTH_NULL,
.flags = (RPC_CLNT_CREATE_ONESHOT),
};
return rpc_create(&args);

4
fs/nfs/mount_clnt.c
View File

@ -69,6 +69,7 @@ nfsroot_mount(struct sockaddr_in *addr, char *path, struct nfs_fh *fh,
msg.rpc_proc = &mnt_clnt->cl_procinfo[MNTPROC_MNT];
status = rpc_call_sync(mnt_clnt, &msg, 0);
rpc_shutdown_client(mnt_clnt);
return status < 0? status : (result.status? -EACCES : 0);
}
@ -84,8 +85,7 @@ mnt_create(char *hostname, struct sockaddr_in *srvaddr, int version,
.program = &mnt_program,
.version = version,
.authflavor = RPC_AUTH_UNIX,
.flags = (RPC_CLNT_CREATE_ONESHOT |
RPC_CLNT_CREATE_INTR),
.flags = RPC_CLNT_CREATE_INTR,
};
return rpc_create(&args);

10
include/linux/sunrpc/clnt.h
View File

@ -44,8 +44,7 @@ struct rpc_clnt {
unsigned int cl_softrtry : 1,/* soft timeouts */
cl_intr : 1,/* interruptible */
cl_discrtry : 1,/* disconnect before retry */
cl_autobind : 1,/* use getport() */
cl_oneshot : 1;/* dispose after use */
cl_autobind : 1;/* use getport() */
struct rpc_rtt * cl_rtt; /* RTO estimator data */
@ -112,10 +111,9 @@ struct rpc_create_args {
#define RPC_CLNT_CREATE_HARDRTRY (1UL << 0)
#define RPC_CLNT_CREATE_INTR (1UL << 1)
#define RPC_CLNT_CREATE_AUTOBIND (1UL << 2)
#define RPC_CLNT_CREATE_ONESHOT (1UL << 3)
#define RPC_CLNT_CREATE_NONPRIVPORT (1UL << 4)
#define RPC_CLNT_CREATE_NOPING (1UL << 5)
#define RPC_CLNT_CREATE_DISCRTRY (1UL << 6)
#define RPC_CLNT_CREATE_NONPRIVPORT (1UL << 3)
#define RPC_CLNT_CREATE_NOPING (1UL << 4)
#define RPC_CLNT_CREATE_DISCRTRY (1UL << 5)
struct rpc_clnt *rpc_create(struct rpc_create_args *args);
struct rpc_clnt *rpc_bind_new_program(struct rpc_clnt *,

10
net/sunrpc/clnt.c
View File

@ -249,8 +249,6 @@ struct rpc_clnt *rpc_create(struct rpc_create_args *args)
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 @@ rpc_clone_client(struct rpc_clnt *clnt)
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 @@ out_no_clnt:
/*
* 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 @@ rpc_shutdown_client(struct rpc_clnt *clnt)
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 @@ rpc_release_client(struct rpc_clnt *clnt)
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);
}

6
net/sunrpc/rpcb_clnt.c
View File

@ -184,8 +184,7 @@ static struct rpc_clnt *rpcb_create(char *hostname, struct sockaddr *srvaddr,
.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 @@ int rpcb_register(u32 prog, u32 vers, int prot, unsigned short port, int *okay)
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 @@ int rpcb_getport_external(struct sockaddr_in *sin, __u32 prog,
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 @@ void rpcb_getport(struct rpc_task *task)
}
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",

14
net/sunrpc/sched.c
View File

@ -876,9 +876,7 @@ static void rpc_free_task(struct rcu_head *rcu)
}
/*
* 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 @@ struct rpc_task *rpc_new_task(struct rpc_clnt *clnt, int flags, const struct rpc
task = rpc_alloc_task();
if (!task)
goto cleanup;
goto out;
rpc_init_task(task, clnt, flags, tk_ops, calldata);
@ -894,14 +892,6 @@ struct rpc_task *rpc_new_task(struct rpc_clnt *clnt, int flags, const struct rpc
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;
}