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NFSv4: Create NFSv4 transport and client

Browse source 
Move existing code into a separate function so that it can be also used by
referral code.

Signed-off-by: Manoj Naik <manoj@almaden.ibm.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Manoj Naik 2006-06-09 09:34:26 -04:00 committed by Trond Myklebust
parent 830b8e33fe
commit c818ba43f9
1 changed files with 80 additions and 65 deletions
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145
fs/nfs/inode.c
View file

@ -2027,12 +2027,84 @@ static void nfs4_clear_inode(struct inode *inode)
}
static struct rpc_clnt *nfs4_create_client(struct nfs_server *server,
struct rpc_timeout *timeparms, int proto, rpc_authflavor_t flavor)
{
struct nfs4_client *clp;
struct rpc_xprt *xprt = NULL;
struct rpc_clnt *clnt = NULL;
int err = -EIO;
clp = nfs4_get_client(&server->addr.sin_addr);
if (!clp) {
dprintk("%s: failed to create NFS4 client.\n", __FUNCTION__);
return ERR_PTR(err);
}
/* Now create transport and client */
down_write(&clp->cl_sem);
if (IS_ERR(clp->cl_rpcclient)) {
xprt = xprt_create_proto(proto, &server->addr, timeparms);
if (IS_ERR(xprt)) {
up_write(&clp->cl_sem);
err = PTR_ERR(xprt);
dprintk("%s: cannot create RPC transport. Error = %d\n",
__FUNCTION__, err);
goto out_fail;
}
clnt = rpc_create_client(xprt, server->hostname, &nfs_program,
server->rpc_ops->version, flavor);
if (IS_ERR(clnt)) {
up_write(&clp->cl_sem);
err = PTR_ERR(clnt);
dprintk("%s: cannot create RPC client. Error = %d\n",
__FUNCTION__, err);
goto out_fail;
}
clnt->cl_intr = 1;
clnt->cl_softrtry = 1;
clp->cl_rpcclient = clnt;
memcpy(clp->cl_ipaddr, server->ip_addr, sizeof(clp->cl_ipaddr));
nfs_idmap_new(clp);
}
list_add_tail(&server->nfs4_siblings, &clp->cl_superblocks);
clnt = rpc_clone_client(clp->cl_rpcclient);
if (!IS_ERR(clnt))
server->nfs4_state = clp;
up_write(&clp->cl_sem);
clp = NULL;
if (IS_ERR(clnt)) {
dprintk("%s: cannot create RPC client. Error = %d\n",
__FUNCTION__, err);
return clnt;
}
if (server->nfs4_state->cl_idmap == NULL) {
dprintk("%s: failed to create idmapper.\n", __FUNCTION__);
return ERR_PTR(-ENOMEM);
}
if (clnt->cl_auth->au_flavor != flavor) {
struct rpc_auth *auth;
auth = rpcauth_create(flavor, clnt);
if (IS_ERR(auth)) {
dprintk("%s: couldn't create credcache!\n", __FUNCTION__);
return (struct rpc_clnt *)auth;
}
}
return clnt;
out_fail:
if (clp)
nfs4_put_client(clp);
return ERR_PTR(err);
}
static int nfs4_fill_super(struct super_block *sb, struct nfs4_mount_data *data, int silent)
{
struct nfs_server *server;
struct nfs4_client *clp = NULL;
struct rpc_xprt *xprt = NULL;
struct rpc_clnt *clnt = NULL;
struct rpc_timeout timeparms;
rpc_authflavor_t authflavour;
int err = -EIO;
@ -2059,12 +2131,6 @@ static int nfs4_fill_super(struct super_block *sb, struct nfs4_mount_data *data,
server->retrans_timeo = timeparms.to_initval;
server->retrans_count = timeparms.to_retries;
clp = nfs4_get_client(&server->addr.sin_addr);
if (!clp) {
dprintk("%s: failed to create NFS4 client.\n", __FUNCTION__);
return -EIO;
}
/* Now create transport and client */
authflavour = RPC_AUTH_UNIX;
if (data->auth_flavourlen != 0) {
@ -2080,71 +2146,20 @@ static int nfs4_fill_super(struct super_block *sb, struct nfs4_mount_data *data,
}
}
down_write(&clp->cl_sem);
if (IS_ERR(clp->cl_rpcclient)) {
xprt = xprt_create_proto(data->proto, &server->addr, &timeparms);
if (IS_ERR(xprt)) {
up_write(&clp->cl_sem);
err = PTR_ERR(xprt);
dprintk("%s: cannot create RPC transport. Error = %d\n",
__FUNCTION__, err);
goto out_fail;
}
clnt = rpc_create_client(xprt, server->hostname, &nfs_program,
server->rpc_ops->version, authflavour);
if (IS_ERR(clnt)) {
up_write(&clp->cl_sem);
err = PTR_ERR(clnt);
server->client = nfs4_create_client(server, &timeparms, data->proto, authflavour);
if (IS_ERR(server->client)) {
err = PTR_ERR(server->client);
dprintk("%s: cannot create RPC client. Error = %d\n",
__FUNCTION__, err);
goto out_fail;
}
clnt->cl_intr = 1;
clnt->cl_softrtry = 1;
clp->cl_rpcclient = clnt;
memcpy(clp->cl_ipaddr, server->ip_addr, sizeof(clp->cl_ipaddr));
nfs_idmap_new(clp);
}
list_add_tail(&server->nfs4_siblings, &clp->cl_superblocks);
clnt = rpc_clone_client(clp->cl_rpcclient);
if (!IS_ERR(clnt))
server->nfs4_state = clp;
up_write(&clp->cl_sem);
clp = NULL;
if (IS_ERR(clnt)) {
err = PTR_ERR(clnt);
dprintk("%s: cannot create RPC client. Error = %d\n",
__FUNCTION__, err);
return err;
}
server->client = clnt;
if (server->nfs4_state->cl_idmap == NULL) {
dprintk("%s: failed to create idmapper.\n", __FUNCTION__);
return -ENOMEM;
}
if (clnt->cl_auth->au_flavor != authflavour) {
struct rpc_auth *auth;
auth = rpcauth_create(authflavour, clnt);
if (IS_ERR(auth)) {
dprintk("%s: couldn't create credcache!\n", __FUNCTION__);
return PTR_ERR(auth);
}
}
sb->s_time_gran = 1;
sb->s_op = &nfs4_sops;
err = nfs_sb_init(sb, authflavour);
if (err == 0)
return 0;
out_fail:
if (clp)
nfs4_put_client(clp);
out_fail:
return err;
}