}
#endif /* CONFIG_NFS_V4 */
-/*
- * Turn off NFSv4 uid/gid mapping when using AUTH_SYS
- */
-static bool nfs4_disable_idmapping = true;
-
/*
* RPC cruft for NFS
*/
};
#endif /* CONFIG_NFS_V3_ACL */
-struct nfs_client_initdata {
- unsigned long init_flags;
- const char *hostname;
- const struct sockaddr *addr;
- size_t addrlen;
- const struct nfs_rpc_ops *rpc_ops;
- int proto;
- u32 minorversion;
- struct net *net;
-};
-
/*
* Allocate a shared client record
*
* Since these are allocated/deallocated very rarely, we don't
* bother putting them in a slab cache...
*/
-static struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_init)
+struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_init)
{
struct nfs_client *clp;
struct rpc_cred *cred;
clp->cl_proto = cl_init->proto;
clp->cl_net = get_net(cl_init->net);
-#ifdef CONFIG_NFS_V4
- err = nfs_get_cb_ident_idr(clp, cl_init->minorversion);
- if (err)
- goto error_cleanup;
-
- spin_lock_init(&clp->cl_lock);
- INIT_DELAYED_WORK(&clp->cl_renewd, nfs4_renew_state);
- rpc_init_wait_queue(&clp->cl_rpcwaitq, "NFS client");
- clp->cl_state = 1 << NFS4CLNT_LEASE_EXPIRED;
- clp->cl_minorversion = cl_init->minorversion;
- clp->cl_mvops = nfs_v4_minor_ops[cl_init->minorversion];
-#endif
cred = rpc_lookup_machine_cred("*");
if (!IS_ERR(cred))
clp->cl_machine_cred = cred;
static void nfs4_shutdown_session(struct nfs_client *clp)
{
if (nfs4_has_session(clp)) {
- nfs4_deviceid_purge_client(clp);
nfs4_destroy_session(clp->cl_session);
nfs4_destroy_clientid(clp);
}
}
#endif /* CONFIG_NFS_V4_1 */
+struct nfs_client *nfs4_alloc_client(const struct nfs_client_initdata *cl_init)
+{
+ int err;
+ struct nfs_client *clp = nfs_alloc_client(cl_init);
+ if (IS_ERR(clp))
+ return clp;
+
+ err = nfs_get_cb_ident_idr(clp, cl_init->minorversion);
+ if (err)
+ goto error;
+
+ spin_lock_init(&clp->cl_lock);
+ INIT_DELAYED_WORK(&clp->cl_renewd, nfs4_renew_state);
+ rpc_init_wait_queue(&clp->cl_rpcwaitq, "NFS client");
+ clp->cl_state = 1 << NFS4CLNT_LEASE_EXPIRED;
+ clp->cl_minorversion = cl_init->minorversion;
+ clp->cl_mvops = nfs_v4_minor_ops[cl_init->minorversion];
+ return clp;
+
+error:
+ kfree(clp);
+ return ERR_PTR(err);
+}
+
/*
* Destroy the NFS4 callback service
*/
kfree(clp->cl_implid);
}
+void nfs4_free_client(struct nfs_client *clp)
+{
+ nfs4_shutdown_client(clp);
+ nfs_free_client(clp);
+}
+
/* idr_remove_all is not needed as all id's are removed by nfs_put_client */
void nfs_cleanup_cb_ident_idr(struct net *net)
{
rpc_init_wait_queue(&server->roc_rpcwaitq, "pNFS ROC");
}
-static void nfs4_destroy_server(struct nfs_server *server)
-{
- nfs4_purge_state_owners(server);
-}
-
#else
-static void nfs4_shutdown_client(struct nfs_client *clp)
-{
-}
-
void nfs_cleanup_cb_ident_idr(struct net *net)
{
}
/*
* Destroy a shared client record
*/
-static void nfs_free_client(struct nfs_client *clp)
+void nfs_free_client(struct nfs_client *clp)
{
dprintk("--> nfs_free_client(%u)\n", clp->rpc_ops->version);
- nfs4_shutdown_client(clp);
-
nfs_fscache_release_client_cookie(clp);
/* -EIO all pending I/O */
BUG_ON(!list_empty(&clp->cl_superblocks));
- nfs_free_client(clp);
+ clp->rpc_ops->free_client(clp);
}
}
EXPORT_SYMBOL_GPL(nfs_put_client);
* Test if two socket addresses represent the same actual socket,
* by comparing (only) relevant fields, excluding the port number.
*/
-static int nfs_sockaddr_match_ipaddr(const struct sockaddr *sa1,
- const struct sockaddr *sa2)
+int nfs_sockaddr_match_ipaddr(const struct sockaddr *sa1,
+ const struct sockaddr *sa2)
{
if (sa1->sa_family != sa2->sa_family)
return 0;
return 0;
}
-#if defined(CONFIG_NFS_V4_1)
-/* Common match routine for v4.0 and v4.1 callback services */
-static bool nfs4_cb_match_client(const struct sockaddr *addr,
- struct nfs_client *clp, u32 minorversion)
-{
- struct sockaddr *clap = (struct sockaddr *)&clp->cl_addr;
-
- /* Don't match clients that failed to initialise */
- if (!(clp->cl_cons_state == NFS_CS_READY ||
- clp->cl_cons_state == NFS_CS_SESSION_INITING))
- return false;
-
- smp_rmb();
-
- /* Match the version and minorversion */
- if (clp->rpc_ops->version != 4 ||
- clp->cl_minorversion != minorversion)
- return false;
-
- /* Match only the IP address, not the port number */
- if (!nfs_sockaddr_match_ipaddr(addr, clap))
- return false;
-
- return true;
-}
-#endif /* CONFIG_NFS_V4_1 */
-
/*
* Find an nfs_client on the list that matches the initialisation data
* that is supplied.
smp_rmb();
- BUG_ON(clp->cl_cons_state != NFS_CS_READY);
-
dprintk("<-- %s found nfs_client %p for %s\n",
__func__, clp, cl_init->hostname ?: "");
return clp;
* Look up a client by IP address and protocol version
* - creates a new record if one doesn't yet exist
*/
-static struct nfs_client *
+struct nfs_client *
nfs_get_client(const struct nfs_client_initdata *cl_init,
const struct rpc_timeout *timeparms,
const char *ip_addr,
if (clp) {
spin_unlock(&nn->nfs_client_lock);
if (new)
- nfs_free_client(new);
+ new->rpc_ops->free_client(new);
return nfs_found_client(cl_init, clp);
}
if (new) {
spin_unlock(&nn->nfs_client_lock);
- new = nfs_alloc_client(cl_init);
+ new = cl_init->rpc_ops->alloc_client(cl_init);
} while (!IS_ERR(new));
dprintk("<-- nfs_get_client() Failed to find %s (%ld)\n",
/*
* Initialise the timeout values for a connection
*/
-static void nfs_init_timeout_values(struct rpc_timeout *to, int proto,
+void nfs_init_timeout_values(struct rpc_timeout *to, int proto,
unsigned int timeo, unsigned int retrans)
{
to->to_initval = timeo * HZ / 10;
/*
* Create an RPC client handle
*/
-static int nfs_create_rpc_client(struct nfs_client *clp,
- const struct rpc_timeout *timeparms,
- rpc_authflavor_t flavor)
+int nfs_create_rpc_client(struct nfs_client *clp,
+ const struct rpc_timeout *timeparms,
+ rpc_authflavor_t flavor)
{
struct rpc_clnt *clnt = NULL;
struct rpc_create_args args = {
/*
* Create a general RPC client
*/
-static int nfs_init_server_rpcclient(struct nfs_server *server,
+int nfs_init_server_rpcclient(struct nfs_server *server,
const struct rpc_timeout *timeo,
rpc_authflavor_t pseudoflavour)
{
server->wsize = NFS_MAX_FILE_IO_SIZE;
server->wpages = (server->wsize + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
server->pnfs_blksize = fsinfo->blksize;
- set_pnfs_layoutdriver(server, mntfh, fsinfo->layouttype);
server->wtmult = nfs_block_bits(fsinfo->wtmult, NULL);
/*
* Probe filesystem information, including the FSID on v2/v3
*/
-static int nfs_probe_fsinfo(struct nfs_server *server, struct nfs_fh *mntfh, struct nfs_fattr *fattr)
+int nfs_probe_fsinfo(struct nfs_server *server, struct nfs_fh *mntfh, struct nfs_fattr *fattr)
{
struct nfs_fsinfo fsinfo;
struct nfs_client *clp = server->nfs_client;
/*
* Copy useful information when duplicating a server record
*/
-static void nfs_server_copy_userdata(struct nfs_server *target, struct nfs_server *source)
+void nfs_server_copy_userdata(struct nfs_server *target, struct nfs_server *source)
{
target->flags = source->flags;
target->rsize = source->rsize;
target->options = source->options;
}
-static void nfs_server_insert_lists(struct nfs_server *server)
+void nfs_server_insert_lists(struct nfs_server *server)
{
struct nfs_client *clp = server->nfs_client;
struct nfs_net *nn = net_generic(clp->cl_net, nfs_net_id);
/*
* Allocate and initialise a server record
*/
-static struct nfs_server *nfs_alloc_server(void)
+struct nfs_server *nfs_alloc_server(void)
{
struct nfs_server *server;
dprintk("--> nfs_free_server()\n");
nfs_server_remove_lists(server);
- unset_pnfs_layoutdriver(server);
if (server->destroy != NULL)
server->destroy(server);
return ERR_PTR(error);
}
-#ifdef CONFIG_NFS_V4
-/*
- * NFSv4.0 callback thread helper
- *
- * Find a client by callback identifier
- */
-struct nfs_client *
-nfs4_find_client_ident(struct net *net, int cb_ident)
-{
- struct nfs_client *clp;
- struct nfs_net *nn = net_generic(net, nfs_net_id);
-
- spin_lock(&nn->nfs_client_lock);
- clp = idr_find(&nn->cb_ident_idr, cb_ident);
- if (clp)
- atomic_inc(&clp->cl_count);
- spin_unlock(&nn->nfs_client_lock);
- return clp;
-}
-
-#if defined(CONFIG_NFS_V4_1)
-/*
- * NFSv4.1 callback thread helper
- * For CB_COMPOUND calls, find a client by IP address, protocol version,
- * minorversion, and sessionID
- *
- * Returns NULL if no such client
- */
-struct nfs_client *
-nfs4_find_client_sessionid(struct net *net, const struct sockaddr *addr,
- struct nfs4_sessionid *sid)
-{
- struct nfs_client *clp;
- struct nfs_net *nn = net_generic(net, nfs_net_id);
-
- spin_lock(&nn->nfs_client_lock);
- list_for_each_entry(clp, &nn->nfs_client_list, cl_share_link) {
- if (nfs4_cb_match_client(addr, clp, 1) == false)
- continue;
-
- if (!nfs4_has_session(clp))
- continue;
-
- /* Match sessionid*/
- if (memcmp(clp->cl_session->sess_id.data,
- sid->data, NFS4_MAX_SESSIONID_LEN) != 0)
- continue;
-
- atomic_inc(&clp->cl_count);
- spin_unlock(&nn->nfs_client_lock);
- return clp;
- }
- spin_unlock(&nn->nfs_client_lock);
- return NULL;
-}
-
-#else /* CONFIG_NFS_V4_1 */
-
-struct nfs_client *
-nfs4_find_client_sessionid(struct net *net, const struct sockaddr *addr,
- struct nfs4_sessionid *sid)
-{
- return NULL;
-}
-#endif /* CONFIG_NFS_V4_1 */
-
-/*
- * Initialize the NFS4 callback service
- */
-static int nfs4_init_callback(struct nfs_client *clp)
-{
- int error;
-
- if (clp->rpc_ops->version == 4) {
- struct rpc_xprt *xprt;
-
- xprt = rcu_dereference_raw(clp->cl_rpcclient->cl_xprt);
-
- if (nfs4_has_session(clp)) {
- error = xprt_setup_backchannel(xprt,
- NFS41_BC_MIN_CALLBACKS);
- if (error < 0)
- return error;
- }
-
- error = nfs_callback_up(clp->cl_mvops->minor_version, xprt);
- if (error < 0) {
- dprintk("%s: failed to start callback. Error = %d\n",
- __func__, error);
- return error;
- }
- __set_bit(NFS_CS_CALLBACK, &clp->cl_res_state);
- }
- return 0;
-}
-
-/*
- * Initialize the minor version specific parts of an NFS4 client record
- */
-static int nfs4_init_client_minor_version(struct nfs_client *clp)
-{
-#if defined(CONFIG_NFS_V4_1)
- if (clp->cl_mvops->minor_version) {
- struct nfs4_session *session = NULL;
- /*
- * Create the session and mark it expired.
- * When a SEQUENCE operation encounters the expired session
- * it will do session recovery to initialize it.
- */
- session = nfs4_alloc_session(clp);
- if (!session)
- return -ENOMEM;
-
- clp->cl_session = session;
- /*
- * The create session reply races with the server back
- * channel probe. Mark the client NFS_CS_SESSION_INITING
- * so that the client back channel can find the
- * nfs_client struct
- */
- nfs_mark_client_ready(clp, NFS_CS_SESSION_INITING);
- }
-#endif /* CONFIG_NFS_V4_1 */
-
- return nfs4_init_callback(clp);
-}
-
-/**
- * nfs4_init_client - Initialise an NFS4 client record
- *
- * @clp: nfs_client to initialise
- * @timeparms: timeout parameters for underlying RPC transport
- * @ip_addr: callback IP address in presentation format
- * @authflavor: authentication flavor for underlying RPC transport
- *
- * Returns pointer to an NFS client, or an ERR_PTR value.
- */
-struct nfs_client *nfs4_init_client(struct nfs_client *clp,
- const struct rpc_timeout *timeparms,
- const char *ip_addr,
- rpc_authflavor_t authflavour)
-{
- char buf[INET6_ADDRSTRLEN + 1];
- int error;
-
- if (clp->cl_cons_state == NFS_CS_READY) {
- /* the client is initialised already */
- dprintk("<-- nfs4_init_client() = 0 [already %p]\n", clp);
- return clp;
- }
-
- /* Check NFS protocol revision and initialize RPC op vector */
- clp->rpc_ops = &nfs_v4_clientops;
-
- __set_bit(NFS_CS_DISCRTRY, &clp->cl_flags);
- error = nfs_create_rpc_client(clp, timeparms, authflavour);
- if (error < 0)
- goto error;
-
- /* If no clientaddr= option was specified, find a usable cb address */
- if (ip_addr == NULL) {
- struct sockaddr_storage cb_addr;
- struct sockaddr *sap = (struct sockaddr *)&cb_addr;
-
- error = rpc_localaddr(clp->cl_rpcclient, sap, sizeof(cb_addr));
- if (error < 0)
- goto error;
- error = rpc_ntop(sap, buf, sizeof(buf));
- if (error < 0)
- goto error;
- ip_addr = (const char *)buf;
- }
- strlcpy(clp->cl_ipaddr, ip_addr, sizeof(clp->cl_ipaddr));
-
- error = nfs_idmap_new(clp);
- if (error < 0) {
- dprintk("%s: failed to create idmapper. Error = %d\n",
- __func__, error);
- goto error;
- }
- __set_bit(NFS_CS_IDMAP, &clp->cl_res_state);
-
- error = nfs4_init_client_minor_version(clp);
- if (error < 0)
- goto error;
-
- if (!nfs4_has_session(clp))
- nfs_mark_client_ready(clp, NFS_CS_READY);
- return clp;
-
-error:
- nfs_mark_client_ready(clp, error);
- nfs_put_client(clp);
- dprintk("<-- nfs4_init_client() = xerror %d\n", error);
- return ERR_PTR(error);
-}
-
-/*
- * Set up an NFS4 client
- */
-static int nfs4_set_client(struct nfs_server *server,
- const char *hostname,
- const struct sockaddr *addr,
- const size_t addrlen,
- const char *ip_addr,
- rpc_authflavor_t authflavour,
- int proto, const struct rpc_timeout *timeparms,
- u32 minorversion, struct net *net)
-{
- struct nfs_client_initdata cl_init = {
- .hostname = hostname,
- .addr = addr,
- .addrlen = addrlen,
- .rpc_ops = &nfs_v4_clientops,
- .proto = proto,
- .minorversion = minorversion,
- .net = net,
- };
- struct nfs_client *clp;
- int error;
-
- dprintk("--> nfs4_set_client()\n");
-
- if (server->flags & NFS_MOUNT_NORESVPORT)
- set_bit(NFS_CS_NORESVPORT, &cl_init.init_flags);
-
- /* Allocate or find a client reference we can use */
- clp = nfs_get_client(&cl_init, timeparms, ip_addr, authflavour);
- if (IS_ERR(clp)) {
- error = PTR_ERR(clp);
- goto error;
- }
-
- /*
- * Query for the lease time on clientid setup or renewal
- *
- * Note that this will be set on nfs_clients that were created
- * only for the DS role and did not set this bit, but now will
- * serve a dual role.
- */
- set_bit(NFS_CS_CHECK_LEASE_TIME, &clp->cl_res_state);
-
- server->nfs_client = clp;
- dprintk("<-- nfs4_set_client() = 0 [new %p]\n", clp);
- return 0;
-error:
- dprintk("<-- nfs4_set_client() = xerror %d\n", error);
- return error;
-}
-
-/*
- * Set up a pNFS Data Server client.
- *
- * Return any existing nfs_client that matches server address,port,version
- * and minorversion.
- *
- * For a new nfs_client, use a soft mount (default), a low retrans and a
- * low timeout interval so that if a connection is lost, we retry through
- * the MDS.
- */
-struct nfs_client *nfs4_set_ds_client(struct nfs_client* mds_clp,
- const struct sockaddr *ds_addr, int ds_addrlen,
- int ds_proto, unsigned int ds_timeo, unsigned int ds_retrans)
-{
- struct nfs_client_initdata cl_init = {
- .addr = ds_addr,
- .addrlen = ds_addrlen,
- .rpc_ops = &nfs_v4_clientops,
- .proto = ds_proto,
- .minorversion = mds_clp->cl_minorversion,
- .net = mds_clp->cl_net,
- };
- struct rpc_timeout ds_timeout;
- struct nfs_client *clp;
-
- /*
- * Set an authflavor equual to the MDS value. Use the MDS nfs_client
- * cl_ipaddr so as to use the same EXCHANGE_ID co_ownerid as the MDS
- * (section 13.1 RFC 5661).
- */
- nfs_init_timeout_values(&ds_timeout, ds_proto, ds_timeo, ds_retrans);
- clp = nfs_get_client(&cl_init, &ds_timeout, mds_clp->cl_ipaddr,
- mds_clp->cl_rpcclient->cl_auth->au_flavor);
-
- dprintk("<-- %s %p\n", __func__, clp);
- return clp;
-}
-EXPORT_SYMBOL_GPL(nfs4_set_ds_client);
-
-/*
- * Session has been established, and the client marked ready.
- * Set the mount rsize and wsize with negotiated fore channel
- * attributes which will be bound checked in nfs_server_set_fsinfo.
- */
-static void nfs4_session_set_rwsize(struct nfs_server *server)
-{
-#ifdef CONFIG_NFS_V4_1
- struct nfs4_session *sess;
- u32 server_resp_sz;
- u32 server_rqst_sz;
-
- if (!nfs4_has_session(server->nfs_client))
- return;
- sess = server->nfs_client->cl_session;
- server_resp_sz = sess->fc_attrs.max_resp_sz - nfs41_maxread_overhead;
- server_rqst_sz = sess->fc_attrs.max_rqst_sz - nfs41_maxwrite_overhead;
-
- if (server->rsize > server_resp_sz)
- server->rsize = server_resp_sz;
- if (server->wsize > server_rqst_sz)
- server->wsize = server_rqst_sz;
-#endif /* CONFIG_NFS_V4_1 */
-}
-
-static int nfs4_server_common_setup(struct nfs_server *server,
- struct nfs_fh *mntfh)
-{
- struct nfs_fattr *fattr;
- int error;
-
- BUG_ON(!server->nfs_client);
- BUG_ON(!server->nfs_client->rpc_ops);
- BUG_ON(!server->nfs_client->rpc_ops->file_inode_ops);
-
- /* data servers support only a subset of NFSv4.1 */
- if (is_ds_only_client(server->nfs_client))
- return -EPROTONOSUPPORT;
-
- fattr = nfs_alloc_fattr();
- if (fattr == NULL)
- return -ENOMEM;
-
- /* We must ensure the session is initialised first */
- error = nfs4_init_session(server);
- if (error < 0)
- goto out;
-
- /* Probe the root fh to retrieve its FSID and filehandle */
- error = nfs4_get_rootfh(server, mntfh);
- if (error < 0)
- goto out;
-
- dprintk("Server FSID: %llx:%llx\n",
- (unsigned long long) server->fsid.major,
- (unsigned long long) server->fsid.minor);
- dprintk("Mount FH: %d\n", mntfh->size);
-
- nfs4_session_set_rwsize(server);
-
- error = nfs_probe_fsinfo(server, mntfh, fattr);
- if (error < 0)
- goto out;
-
- if (server->namelen == 0 || server->namelen > NFS4_MAXNAMLEN)
- server->namelen = NFS4_MAXNAMLEN;
-
- nfs_server_insert_lists(server);
- server->mount_time = jiffies;
- server->destroy = nfs4_destroy_server;
-out:
- nfs_free_fattr(fattr);
- return error;
-}
-
-/*
- * Create a version 4 volume record
- */
-static int nfs4_init_server(struct nfs_server *server,
- const struct nfs_parsed_mount_data *data)
-{
- struct rpc_timeout timeparms;
- int error;
-
- dprintk("--> nfs4_init_server()\n");
-
- nfs_init_timeout_values(&timeparms, data->nfs_server.protocol,
- data->timeo, data->retrans);
-
- /* Initialise the client representation from the mount data */
- server->flags = data->flags;
- server->caps |= NFS_CAP_ATOMIC_OPEN|NFS_CAP_CHANGE_ATTR|NFS_CAP_POSIX_LOCK;
- if (!(data->flags & NFS_MOUNT_NORDIRPLUS))
- server->caps |= NFS_CAP_READDIRPLUS;
- server->options = data->options;
-
- /* Get a client record */
- error = nfs4_set_client(server,
- data->nfs_server.hostname,
- (const struct sockaddr *)&data->nfs_server.address,
- data->nfs_server.addrlen,
- data->client_address,
- data->auth_flavors[0],
- data->nfs_server.protocol,
- &timeparms,
- data->minorversion,
- data->net);
- if (error < 0)
- goto error;
-
- /*
- * Don't use NFS uid/gid mapping if we're using AUTH_SYS or lower
- * authentication.
- */
- if (nfs4_disable_idmapping && data->auth_flavors[0] == RPC_AUTH_UNIX)
- server->caps |= NFS_CAP_UIDGID_NOMAP;
-
- if (data->rsize)
- server->rsize = nfs_block_size(data->rsize, NULL);
- if (data->wsize)
- server->wsize = nfs_block_size(data->wsize, NULL);
-
- server->acregmin = data->acregmin * HZ;
- server->acregmax = data->acregmax * HZ;
- server->acdirmin = data->acdirmin * HZ;
- server->acdirmax = data->acdirmax * HZ;
-
- server->port = data->nfs_server.port;
-
- error = nfs_init_server_rpcclient(server, &timeparms, data->auth_flavors[0]);
-
-error:
- /* Done */
- dprintk("<-- nfs4_init_server() = %d\n", error);
- return error;
-}
-
-/*
- * Create a version 4 volume record
- * - keyed on server and FSID
- */
-struct nfs_server *nfs4_create_server(const struct nfs_parsed_mount_data *data,
- struct nfs_fh *mntfh)
-{
- struct nfs_server *server;
- int error;
-
- dprintk("--> nfs4_create_server()\n");
-
- server = nfs_alloc_server();
- if (!server)
- return ERR_PTR(-ENOMEM);
-
- /* set up the general RPC client */
- error = nfs4_init_server(server, data);
- if (error < 0)
- goto error;
-
- error = nfs4_server_common_setup(server, mntfh);
- if (error < 0)
- goto error;
-
- dprintk("<-- nfs4_create_server() = %p\n", server);
- return server;
-
-error:
- nfs_free_server(server);
- dprintk("<-- nfs4_create_server() = error %d\n", error);
- return ERR_PTR(error);
-}
-
-/*
- * Create an NFS4 referral server record
- */
-struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
- struct nfs_fh *mntfh)
-{
- struct nfs_client *parent_client;
- struct nfs_server *server, *parent_server;
- int error;
-
- dprintk("--> nfs4_create_referral_server()\n");
-
- server = nfs_alloc_server();
- if (!server)
- return ERR_PTR(-ENOMEM);
-
- parent_server = NFS_SB(data->sb);
- parent_client = parent_server->nfs_client;
-
- /* Initialise the client representation from the parent server */
- nfs_server_copy_userdata(server, parent_server);
- server->caps |= NFS_CAP_ATOMIC_OPEN|NFS_CAP_CHANGE_ATTR;
-
- /* Get a client representation.
- * Note: NFSv4 always uses TCP, */
- error = nfs4_set_client(server, data->hostname,
- data->addr,
- data->addrlen,
- parent_client->cl_ipaddr,
- data->authflavor,
- rpc_protocol(parent_server->client),
- parent_server->client->cl_timeout,
- parent_client->cl_mvops->minor_version,
- parent_client->cl_net);
- if (error < 0)
- goto error;
-
- error = nfs_init_server_rpcclient(server, parent_server->client->cl_timeout, data->authflavor);
- if (error < 0)
- goto error;
-
- error = nfs4_server_common_setup(server, mntfh);
- if (error < 0)
- goto error;
-
- dprintk("<-- nfs_create_referral_server() = %p\n", server);
- return server;
-
-error:
- nfs_free_server(server);
- dprintk("<-- nfs4_create_referral_server() = error %d\n", error);
- return ERR_PTR(error);
-}
-
-#endif /* CONFIG_NFS_V4 */
-
/*
* Clone an NFS2, NFS3 or NFS4 server record
*/
}
#endif /* CONFIG_PROC_FS */
-
-module_param(nfs4_disable_idmapping, bool, 0644);
-MODULE_PARM_DESC(nfs4_disable_idmapping,
- "Turn off NFSv4 idmapping when using 'sec=sys'");
projects / linux-block.git / blobdiff