diff options
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/nfs4client.c | 10 | ||||
| -rw-r--r-- | fs/nfs/nfs4proc.c | 45 |
2 files changed, 44 insertions, 11 deletions
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c index 6914d4b176ae..a2c9654d018f 100644 --- a/fs/nfs/nfs4client.c +++ b/fs/nfs/nfs4client.c @@ -637,9 +637,10 @@ out_scope_mismatch: } /** - * nfs4_detect_session_trunking - Checks for session trunking called - * after a successful EXCHANGE_ID testing a multi-addr connection to be - * potentially added as a session trunk + * nfs4_detect_session_trunking - Checks for session trunking. + * + * Called after a successful EXCHANGE_ID on a multi-addr connection. + * Upon success, add the transport. * * @clp: original mount nfs_client * @res: result structure from an exchange_id using the original mount @@ -673,6 +674,9 @@ int nfs4_detect_session_trunking(struct nfs_client *clp, if (!nfs4_check_server_scope(clp->cl_serverscope, res->server_scope)) goto out_err; + /* Session trunking passed, add the xprt */ + rpc_clnt_xprt_switch_add_xprt(clp->cl_rpcclient, xprt); + pr_info("NFS: %s: Session trunking succeeded for %s\n", clp->cl_hostname, xprt->address_strings[RPC_DISPLAY_ADDR]); diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 05b90a756fb5..a70a972eb06f 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -7107,6 +7107,7 @@ static int nfs4_sp4_select_mode(struct nfs_client *clp, struct nfs41_exchange_id_data { struct nfs41_exchange_id_res res; struct nfs41_exchange_id_args args; + struct rpc_xprt *xprt; int rpc_status; }; @@ -7121,6 +7122,13 @@ static void nfs4_exchange_id_done(struct rpc_task *task, void *data) if (status == 0) status = nfs4_check_cl_exchange_flags(cdata->res.flags); + + if (cdata->xprt && status == 0) { + status = nfs4_detect_session_trunking(clp, &cdata->res, + cdata->xprt); + goto out; + } + if (status == 0) status = nfs4_sp4_select_mode(clp, &cdata->res.state_protect); @@ -7157,8 +7165,13 @@ static void nfs4_exchange_id_done(struct rpc_task *task, void *data) clp->cl_serverscope = cdata->res.server_scope; cdata->res.server_scope = NULL; } + /* Save the EXCHANGE_ID verifier session trunk tests */ + memcpy(clp->cl_confirm.data, cdata->args.verifier->data, + sizeof(clp->cl_confirm.data)); } +out: cdata->rpc_status = status; + return; } static void nfs4_exchange_id_release(void *data) @@ -7167,6 +7180,10 @@ static void nfs4_exchange_id_release(void *data) (struct nfs41_exchange_id_data *)data; nfs_put_client(cdata->args.client); + if (cdata->xprt) { + xprt_put(cdata->xprt); + rpc_clnt_xprt_switch_put(cdata->args.client->cl_rpcclient); + } kfree(cdata->res.impl_id); kfree(cdata->res.server_scope); kfree(cdata->res.server_owner); @@ -7184,7 +7201,7 @@ static const struct rpc_call_ops nfs4_exchange_id_call_ops = { * Wrapper for EXCHANGE_ID operation. */ static int _nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred, - u32 sp4_how) + u32 sp4_how, struct rpc_xprt *xprt) { nfs4_verifier verifier; struct rpc_message msg = { @@ -7209,7 +7226,8 @@ static int _nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred, if (!calldata) goto out; - nfs4_init_boot_verifier(clp, &verifier); + if (!xprt) + nfs4_init_boot_verifier(clp, &verifier); status = nfs4_init_uniform_client_string(clp); if (status) @@ -7249,8 +7267,15 @@ static int _nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred, status = -EINVAL; goto out_impl_id; } - - calldata->args.verifier = &verifier; + if (xprt) { + calldata->xprt = xprt; + task_setup_data.rpc_xprt = xprt; + task_setup_data.flags = + RPC_TASK_SOFT|RPC_TASK_SOFTCONN|RPC_TASK_ASYNC; + calldata->args.verifier = &clp->cl_confirm; + } else { + calldata->args.verifier = &verifier; + } calldata->args.client = clp; #ifdef CONFIG_NFS_V4_1_MIGRATION calldata->args.flags = EXCHGID4_FLAG_SUPP_MOVED_REFER | @@ -7270,9 +7295,13 @@ static int _nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred, goto out_impl_id; } - status = rpc_wait_for_completion_task(task); - if (!status) + if (!xprt) { + status = rpc_wait_for_completion_task(task); + if (!status) + status = calldata->rpc_status; + } else /* session trunking test */ status = calldata->rpc_status; + rpc_put_task(task); out: if (clp->cl_implid != NULL) @@ -7315,13 +7344,13 @@ int nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred) /* try SP4_MACH_CRED if krb5i/p */ if (authflavor == RPC_AUTH_GSS_KRB5I || authflavor == RPC_AUTH_GSS_KRB5P) { - status = _nfs4_proc_exchange_id(clp, cred, SP4_MACH_CRED); + status = _nfs4_proc_exchange_id(clp, cred, SP4_MACH_CRED, NULL); if (!status) return 0; } /* try SP4_NONE */ - return _nfs4_proc_exchange_id(clp, cred, SP4_NONE); + return _nfs4_proc_exchange_id(clp, cred, SP4_NONE, NULL); } static int _nfs4_proc_destroy_clientid(struct nfs_client *clp, |