From 80fc015bdfe1f5b870c1e1ee02d78e709523fee7 Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Tue, 15 Sep 2009 18:07:35 -0400 Subject: nfsd4: use common rpc_cred for all callbacks Callbacks are always made using the machine's identity, so we can use a single auth_generic credential shared among callbacks to all clients and let the rpc code take care of the rest. Signed-off-by: J. Bruce Fields --- fs/nfsd/nfs4callback.c | 33 ++++++++++----------------------- fs/nfsd/nfs4state.c | 6 +----- 2 files changed, 11 insertions(+), 28 deletions(-) (limited to 'fs') diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c index 4abb882..1285197 100644 --- a/fs/nfsd/nfs4callback.c +++ b/fs/nfsd/nfs4callback.c @@ -432,42 +432,29 @@ static const struct rpc_call_ops nfsd4_cb_probe_ops = { .rpc_call_done = nfsd4_cb_probe_done, }; -static struct rpc_cred *lookup_cb_cred(struct nfs4_cb_conn *cb) +static struct rpc_cred *callback_cred; + +int set_callback_cred(void) { - struct auth_cred acred = { - .machine_cred = 1 - }; - struct rpc_auth *auth = cb->cb_client->cl_auth; - - /* - * Note in the gss case this doesn't actually have to wait for a - * gss upcall (or any calls to the client); this just creates a - * non-uptodate cred which the rpc state machine will fill in with - * a refresh_upcall later. - */ - return auth->au_ops->lookup_cred(auth, &acred, RPCAUTH_LOOKUP_NEW); + callback_cred = rpc_lookup_machine_cred(); + if (!callback_cred) + return -ENOMEM; + return 0; } + void do_probe_callback(struct nfs4_client *clp) { struct nfs4_cb_conn *cb = &clp->cl_cb_conn; struct rpc_message msg = { .rpc_proc = &nfs4_cb_procedures[NFSPROC4_CLNT_CB_NULL], .rpc_argp = clp, + .rpc_cred = callback_cred }; - struct rpc_cred *cred; int status; - cred = lookup_cb_cred(cb); - if (IS_ERR(cred)) { - status = PTR_ERR(cred); - goto out; - } - cb->cb_cred = cred; - msg.rpc_cred = cb->cb_cred; status = rpc_call_async(cb->cb_client, &msg, RPC_TASK_SOFT, &nfsd4_cb_probe_ops, (void *)clp); -out: if (status) { warn_no_callback_path(clp, status); put_nfs4_client(clp); @@ -550,7 +537,7 @@ nfsd4_cb_recall(struct nfs4_delegation *dp) struct rpc_message msg = { .rpc_proc = &nfs4_cb_procedures[NFSPROC4_CLNT_CB_RECALL], .rpc_argp = dp, - .rpc_cred = clp->cl_cb_conn.cb_cred + .rpc_cred = callback_cred }; int status; diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 11db40c..0445192 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -696,10 +696,6 @@ shutdown_callback_client(struct nfs4_client *clp) clp->cl_cb_conn.cb_client = NULL; rpc_shutdown_client(clnt); } - if (clp->cl_cb_conn.cb_cred) { - put_rpccred(clp->cl_cb_conn.cb_cred); - clp->cl_cb_conn.cb_cred = NULL; - } } static inline void @@ -4020,7 +4016,7 @@ __nfs4_state_start(void) return -ENOMEM; queue_delayed_work(laundry_wq, &laundromat_work, grace_time); set_max_delegations(); - return 0; + return set_callback_cred(); } int -- cgit v1.1