NFS setup async exchange_id
Testing an rpc_xprt for session trunking should not delay application progress over already established transports. Setup exchange_id to be able to be an async call to test an rpc_xprt for session trunking use. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Andy Adamson
Anna Schumaker
parent
5405fc44c3
commit
8d89bd70bc
|
|
@ -7104,6 +7104,80 @@ static int nfs4_sp4_select_mode(struct nfs_client *clp,
|
|||
return 0;
|
||||
}
|
||||
|
||||
struct nfs41_exchange_id_data {
|
||||
struct nfs41_exchange_id_res res;
|
||||
struct nfs41_exchange_id_args args;
|
||||
int rpc_status;
|
||||
};
|
||||
|
||||
static void nfs4_exchange_id_done(struct rpc_task *task, void *data)
|
||||
{
|
||||
struct nfs41_exchange_id_data *cdata =
|
||||
(struct nfs41_exchange_id_data *)data;
|
||||
struct nfs_client *clp = cdata->args.client;
|
||||
int status = task->tk_status;
|
||||
|
||||
trace_nfs4_exchange_id(clp, status);
|
||||
|
||||
if (status == 0)
|
||||
status = nfs4_check_cl_exchange_flags(cdata->res.flags);
|
||||
if (status == 0)
|
||||
status = nfs4_sp4_select_mode(clp, &cdata->res.state_protect);
|
||||
|
||||
if (status == 0) {
|
||||
clp->cl_clientid = cdata->res.clientid;
|
||||
clp->cl_exchange_flags = cdata->res.flags;
|
||||
/* Client ID is not confirmed */
|
||||
if (!(cdata->res.flags & EXCHGID4_FLAG_CONFIRMED_R)) {
|
||||
clear_bit(NFS4_SESSION_ESTABLISHED,
|
||||
&clp->cl_session->session_state);
|
||||
clp->cl_seqid = cdata->res.seqid;
|
||||
}
|
||||
|
||||
kfree(clp->cl_serverowner);
|
||||
clp->cl_serverowner = cdata->res.server_owner;
|
||||
cdata->res.server_owner = NULL;
|
||||
|
||||
/* use the most recent implementation id */
|
||||
kfree(clp->cl_implid);
|
||||
clp->cl_implid = cdata->res.impl_id;
|
||||
cdata->res.impl_id = NULL;
|
||||
|
||||
if (clp->cl_serverscope != NULL &&
|
||||
!nfs41_same_server_scope(clp->cl_serverscope,
|
||||
cdata->res.server_scope)) {
|
||||
dprintk("%s: server_scope mismatch detected\n",
|
||||
__func__);
|
||||
set_bit(NFS4CLNT_SERVER_SCOPE_MISMATCH, &clp->cl_state);
|
||||
kfree(clp->cl_serverscope);
|
||||
clp->cl_serverscope = NULL;
|
||||
}
|
||||
|
||||
if (clp->cl_serverscope == NULL) {
|
||||
clp->cl_serverscope = cdata->res.server_scope;
|
||||
cdata->res.server_scope = NULL;
|
||||
}
|
||||
}
|
||||
cdata->rpc_status = status;
|
||||
}
|
||||
|
||||
static void nfs4_exchange_id_release(void *data)
|
||||
{
|
||||
struct nfs41_exchange_id_data *cdata =
|
||||
(struct nfs41_exchange_id_data *)data;
|
||||
|
||||
nfs_put_client(cdata->args.client);
|
||||
kfree(cdata->res.impl_id);
|
||||
kfree(cdata->res.server_scope);
|
||||
kfree(cdata->res.server_owner);
|
||||
kfree(cdata);
|
||||
}
|
||||
|
||||
static const struct rpc_call_ops nfs4_exchange_id_call_ops = {
|
||||
.rpc_call_done = nfs4_exchange_id_done,
|
||||
.rpc_release = nfs4_exchange_id_release,
|
||||
};
|
||||
|
||||
/*
|
||||
* _nfs4_proc_exchange_id()
|
||||
*
|
||||
|
|
@ -7113,66 +7187,60 @@ static int _nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred,
|
|||
u32 sp4_how)
|
||||
{
|
||||
nfs4_verifier verifier;
|
||||
struct nfs41_exchange_id_args args = {
|
||||
.verifier = &verifier,
|
||||
.client = clp,
|
||||
#ifdef CONFIG_NFS_V4_1_MIGRATION
|
||||
.flags = EXCHGID4_FLAG_SUPP_MOVED_REFER |
|
||||
EXCHGID4_FLAG_BIND_PRINC_STATEID |
|
||||
EXCHGID4_FLAG_SUPP_MOVED_MIGR,
|
||||
#else
|
||||
.flags = EXCHGID4_FLAG_SUPP_MOVED_REFER |
|
||||
EXCHGID4_FLAG_BIND_PRINC_STATEID,
|
||||
#endif
|
||||
};
|
||||
struct nfs41_exchange_id_res res = {
|
||||
0
|
||||
};
|
||||
int status;
|
||||
struct rpc_message msg = {
|
||||
.rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_EXCHANGE_ID],
|
||||
.rpc_argp = &args,
|
||||
.rpc_resp = &res,
|
||||
.rpc_cred = cred,
|
||||
};
|
||||
struct rpc_task_setup task_setup_data = {
|
||||
.rpc_client = clp->cl_rpcclient,
|
||||
.callback_ops = &nfs4_exchange_id_call_ops,
|
||||
.rpc_message = &msg,
|
||||
.flags = RPC_TASK_ASYNC | RPC_TASK_TIMEOUT,
|
||||
};
|
||||
struct nfs41_exchange_id_data *calldata;
|
||||
struct rpc_task *task;
|
||||
int status = -EIO;
|
||||
|
||||
if (!atomic_inc_not_zero(&clp->cl_count))
|
||||
goto out;
|
||||
|
||||
status = -ENOMEM;
|
||||
calldata = kzalloc(sizeof(*calldata), GFP_NOFS);
|
||||
if (!calldata)
|
||||
goto out;
|
||||
|
||||
nfs4_init_boot_verifier(clp, &verifier);
|
||||
|
||||
status = nfs4_init_uniform_client_string(clp);
|
||||
if (status)
|
||||
goto out;
|
||||
goto out_calldata;
|
||||
|
||||
dprintk("NFS call exchange_id auth=%s, '%s'\n",
|
||||
clp->cl_rpcclient->cl_auth->au_ops->au_name,
|
||||
clp->cl_owner_id);
|
||||
|
||||
res.server_owner = kzalloc(sizeof(struct nfs41_server_owner),
|
||||
GFP_NOFS);
|
||||
if (unlikely(res.server_owner == NULL)) {
|
||||
status = -ENOMEM;
|
||||
goto out;
|
||||
}
|
||||
calldata->res.server_owner = kzalloc(sizeof(struct nfs41_server_owner),
|
||||
GFP_NOFS);
|
||||
status = -ENOMEM;
|
||||
if (unlikely(calldata->res.server_owner == NULL))
|
||||
goto out_calldata;
|
||||
|
||||
res.server_scope = kzalloc(sizeof(struct nfs41_server_scope),
|
||||
calldata->res.server_scope = kzalloc(sizeof(struct nfs41_server_scope),
|
||||
GFP_NOFS);
|
||||
if (unlikely(res.server_scope == NULL)) {
|
||||
status = -ENOMEM;
|
||||
if (unlikely(calldata->res.server_scope == NULL))
|
||||
goto out_server_owner;
|
||||
}
|
||||
|
||||
res.impl_id = kzalloc(sizeof(struct nfs41_impl_id), GFP_NOFS);
|
||||
if (unlikely(res.impl_id == NULL)) {
|
||||
status = -ENOMEM;
|
||||
calldata->res.impl_id = kzalloc(sizeof(struct nfs41_impl_id), GFP_NOFS);
|
||||
if (unlikely(calldata->res.impl_id == NULL))
|
||||
goto out_server_scope;
|
||||
}
|
||||
|
||||
switch (sp4_how) {
|
||||
case SP4_NONE:
|
||||
args.state_protect.how = SP4_NONE;
|
||||
calldata->args.state_protect.how = SP4_NONE;
|
||||
break;
|
||||
|
||||
case SP4_MACH_CRED:
|
||||
args.state_protect = nfs4_sp4_mach_cred_request;
|
||||
calldata->args.state_protect = nfs4_sp4_mach_cred_request;
|
||||
break;
|
||||
|
||||
default:
|
||||
|
|
@ -7182,55 +7250,30 @@ static int _nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred,
|
|||
goto out_impl_id;
|
||||
}
|
||||
|
||||
status = rpc_call_sync(clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
|
||||
trace_nfs4_exchange_id(clp, status);
|
||||
if (status == 0)
|
||||
status = nfs4_check_cl_exchange_flags(res.flags);
|
||||
calldata->args.verifier = &verifier;
|
||||
calldata->args.client = clp;
|
||||
#ifdef CONFIG_NFS_V4_1_MIGRATION
|
||||
calldata->args.flags = EXCHGID4_FLAG_SUPP_MOVED_REFER |
|
||||
EXCHGID4_FLAG_BIND_PRINC_STATEID |
|
||||
EXCHGID4_FLAG_SUPP_MOVED_MIGR,
|
||||
#else
|
||||
calldata->args.flags = EXCHGID4_FLAG_SUPP_MOVED_REFER |
|
||||
EXCHGID4_FLAG_BIND_PRINC_STATEID,
|
||||
#endif
|
||||
msg.rpc_argp = &calldata->args;
|
||||
msg.rpc_resp = &calldata->res;
|
||||
task_setup_data.callback_data = calldata;
|
||||
|
||||
if (status == 0)
|
||||
status = nfs4_sp4_select_mode(clp, &res.state_protect);
|
||||
|
||||
if (status == 0) {
|
||||
clp->cl_clientid = res.clientid;
|
||||
clp->cl_exchange_flags = res.flags;
|
||||
/* Client ID is not confirmed */
|
||||
if (!(res.flags & EXCHGID4_FLAG_CONFIRMED_R)) {
|
||||
clear_bit(NFS4_SESSION_ESTABLISHED,
|
||||
&clp->cl_session->session_state);
|
||||
clp->cl_seqid = res.seqid;
|
||||
}
|
||||
|
||||
kfree(clp->cl_serverowner);
|
||||
clp->cl_serverowner = res.server_owner;
|
||||
res.server_owner = NULL;
|
||||
|
||||
/* use the most recent implementation id */
|
||||
kfree(clp->cl_implid);
|
||||
clp->cl_implid = res.impl_id;
|
||||
res.impl_id = NULL;
|
||||
|
||||
if (clp->cl_serverscope != NULL &&
|
||||
!nfs41_same_server_scope(clp->cl_serverscope,
|
||||
res.server_scope)) {
|
||||
dprintk("%s: server_scope mismatch detected\n",
|
||||
__func__);
|
||||
set_bit(NFS4CLNT_SERVER_SCOPE_MISMATCH, &clp->cl_state);
|
||||
kfree(clp->cl_serverscope);
|
||||
clp->cl_serverscope = NULL;
|
||||
}
|
||||
|
||||
if (clp->cl_serverscope == NULL) {
|
||||
clp->cl_serverscope = res.server_scope;
|
||||
res.server_scope = NULL;
|
||||
}
|
||||
task = rpc_run_task(&task_setup_data);
|
||||
if (IS_ERR(task)) {
|
||||
status = PTR_ERR(task);
|
||||
goto out_impl_id;
|
||||
}
|
||||
|
||||
out_impl_id:
|
||||
kfree(res.impl_id);
|
||||
out_server_scope:
|
||||
kfree(res.server_scope);
|
||||
out_server_owner:
|
||||
kfree(res.server_owner);
|
||||
status = rpc_wait_for_completion_task(task);
|
||||
if (!status)
|
||||
status = calldata->rpc_status;
|
||||
rpc_put_task(task);
|
||||
out:
|
||||
if (clp->cl_implid != NULL)
|
||||
dprintk("NFS reply exchange_id: Server Implementation ID: "
|
||||
|
|
@ -7240,6 +7283,16 @@ out:
|
|||
clp->cl_implid->date.nseconds);
|
||||
dprintk("NFS reply exchange_id: %d\n", status);
|
||||
return status;
|
||||
|
||||
out_impl_id:
|
||||
kfree(calldata->res.impl_id);
|
||||
out_server_scope:
|
||||
kfree(calldata->res.server_scope);
|
||||
out_server_owner:
|
||||
kfree(calldata->res.server_owner);
|
||||
out_calldata:
|
||||
kfree(calldata);
|
||||
goto out;
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
|
|||
Loading…
Reference in New Issue