diff options
| -rw-r--r-- | fs/nfsd/nfs4callback.c | 78 |
1 files changed, 39 insertions, 39 deletions
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c index a9735a67296..6eb5cd2381a 100644 --- a/fs/nfsd/nfs4callback.c +++ b/fs/nfsd/nfs4callback.c @@ -350,30 +350,6 @@ static struct rpc_version * nfs_cb_version[] = { static int do_probe_callback(void *data) { struct nfs4_client *clp = data; - struct nfs4_callback *cb = &clp->cl_callback; - struct rpc_message msg = { - .rpc_proc = &nfs4_cb_procedures[NFSPROC4_CLNT_CB_NULL], - .rpc_argp = clp, - }; - int status; - - status = rpc_call_sync(cb->cb_client, &msg, RPC_TASK_SOFT); - - if (status) { - rpc_shutdown_client(cb->cb_client); - cb->cb_client = NULL; - } else - atomic_set(&cb->cb_set, 1); - put_nfs4_client(clp); - return 0; -} - -/* - * Set up the callback client and put a NFSPROC4_CB_NULL on the wire... - */ -void -nfsd4_probe_callback(struct nfs4_client *clp) -{ struct sockaddr_in addr; struct nfs4_callback *cb = &clp->cl_callback; struct rpc_timeout timeparms = { @@ -390,12 +366,15 @@ nfsd4_probe_callback(struct nfs4_client *clp) .timeout = &timeparms, .program = program, .version = nfs_cb_version[1]->number, - .authflavor = RPC_AUTH_UNIX, /* XXX: need AUTH_GSS... */ + .authflavor = RPC_AUTH_UNIX, /* XXX: need AUTH_GSS... */ .flags = (RPC_CLNT_CREATE_NOPING), }; - struct task_struct *t; - - BUG_ON(atomic_read(&clp->cl_callback.cb_set)); + struct rpc_message msg = { + .rpc_proc = &nfs4_cb_procedures[NFSPROC4_CLNT_CB_NULL], + .rpc_argp = clp, + }; + struct rpc_clnt *client; + int status; /* Initialize address */ memset(&addr, 0, sizeof(addr)); @@ -415,29 +394,50 @@ nfsd4_probe_callback(struct nfs4_client *clp) program->stats->program = program; /* Create RPC client */ - cb->cb_client = rpc_create(&args); - if (IS_ERR(cb->cb_client)) { + client = rpc_create(&args); + if (IS_ERR(client)) { dprintk("NFSD: couldn't create callback client\n"); + status = PTR_ERR(client); goto out_err; } + status = rpc_call_sync(client, &msg, RPC_TASK_SOFT); + + if (status) + goto out_release_client; + + cb->cb_client = client; + atomic_set(&cb->cb_set, 1); + put_nfs4_client(clp); + return 0; +out_release_client: + rpc_shutdown_client(client); +out_err: + put_nfs4_client(clp); + dprintk("NFSD: warning: no callback path to client %.*s\n", + (int)clp->cl_name.len, clp->cl_name.data); + return status; +} + +/* + * Set up the callback client and put a NFSPROC4_CB_NULL on the wire... + */ +void +nfsd4_probe_callback(struct nfs4_client *clp) +{ + struct task_struct *t; + + BUG_ON(atomic_read(&clp->cl_callback.cb_set)); + /* the task holds a reference to the nfs4_client struct */ atomic_inc(&clp->cl_count); t = kthread_run(do_probe_callback, clp, "nfs4_cb_probe"); if (IS_ERR(t)) - goto out_release_clp; + atomic_dec(&clp->cl_count); return; - -out_release_clp: - atomic_dec(&clp->cl_count); - rpc_shutdown_client(cb->cb_client); -out_err: - cb->cb_client = NULL; - dprintk("NFSD: warning: no callback path to client %.*s\n", - (int)clp->cl_name.len, clp->cl_name.data); } /* |