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authorManoj Naik <manoj@almaden.ibm.com>2006-06-09 09:34:26 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2006-06-09 09:34:26 -0400
commitc818ba43f9ca2e8214412ab5f126b1f436c35098 (patch)
tree02e3646c172000c8bc71d6de52d4991bbeb3db14 /fs/nfs
parent830b8e33fe1900b87c8eb7ec5c646117a9f298d6 (diff)
NFSv4: Create NFSv4 transport and client
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>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/inode.c131
1 files changed, 73 insertions, 58 deletions
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 3eea556d8f5..db62a5a7e4f 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -2027,62 +2027,24 @@ static void nfs4_clear_inode(struct inode *inode)
}
-static int nfs4_fill_super(struct super_block *sb, struct nfs4_mount_data *data, int silent)
+static struct rpc_clnt *nfs4_create_client(struct nfs_server *server,
+ struct rpc_timeout *timeparms, int proto, rpc_authflavor_t flavor)
{
- struct nfs_server *server;
- struct nfs4_client *clp = NULL;
+ struct nfs4_client *clp;
struct rpc_xprt *xprt = NULL;
struct rpc_clnt *clnt = NULL;
- struct rpc_timeout timeparms;
- rpc_authflavor_t authflavour;
int err = -EIO;
- sb->s_blocksize_bits = 0;
- sb->s_blocksize = 0;
- server = NFS_SB(sb);
- if (data->rsize != 0)
- server->rsize = nfs_block_size(data->rsize, NULL);
- if (data->wsize != 0)
- server->wsize = nfs_block_size(data->wsize, NULL);
- server->flags = data->flags & NFS_MOUNT_FLAGMASK;
- server->caps = NFS_CAP_ATOMIC_OPEN;
-
- server->acregmin = data->acregmin*HZ;
- server->acregmax = data->acregmax*HZ;
- server->acdirmin = data->acdirmin*HZ;
- server->acdirmax = data->acdirmax*HZ;
-
- server->rpc_ops = &nfs_v4_clientops;
-
- nfs_init_timeout_values(&timeparms, data->proto, data->timeo, data->retrans);
-
- 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;
+ return ERR_PTR(err);
}
/* Now create transport and client */
- authflavour = RPC_AUTH_UNIX;
- if (data->auth_flavourlen != 0) {
- if (data->auth_flavourlen != 1) {
- dprintk("%s: Invalid number of RPC auth flavours %d.\n",
- __FUNCTION__, data->auth_flavourlen);
- err = -EINVAL;
- goto out_fail;
- }
- if (copy_from_user(&authflavour, data->auth_flavours, sizeof(authflavour))) {
- err = -EFAULT;
- goto out_fail;
- }
- }
-
down_write(&clp->cl_sem);
if (IS_ERR(clp->cl_rpcclient)) {
- xprt = xprt_create_proto(data->proto, &server->addr, &timeparms);
+ xprt = xprt_create_proto(proto, &server->addr, timeparms);
if (IS_ERR(xprt)) {
up_write(&clp->cl_sem);
err = PTR_ERR(xprt);
@@ -2091,7 +2053,7 @@ static int nfs4_fill_super(struct super_block *sb, struct nfs4_mount_data *data,
goto out_fail;
}
clnt = rpc_create_client(xprt, server->hostname, &nfs_program,
- server->rpc_ops->version, authflavour);
+ server->rpc_ops->version, flavor);
if (IS_ERR(clnt)) {
up_write(&clp->cl_sem);
err = PTR_ERR(clnt);
@@ -2108,43 +2070,96 @@ static int nfs4_fill_super(struct super_block *sb, struct nfs4_mount_data *data,
list_add_tail(&server->nfs4_siblings, &clp->cl_superblocks);
clnt = rpc_clone_client(clp->cl_rpcclient);
if (!IS_ERR(clnt))
- server->nfs4_state = clp;
+ 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;
+ return clnt;
}
- server->client = clnt;
-
if (server->nfs4_state->cl_idmap == NULL) {
dprintk("%s: failed to create idmapper.\n", __FUNCTION__);
- return -ENOMEM;
+ return ERR_PTR(-ENOMEM);
}
- if (clnt->cl_auth->au_flavor != authflavour) {
+ if (clnt->cl_auth->au_flavor != flavor) {
struct rpc_auth *auth;
- auth = rpcauth_create(authflavour, clnt);
+ auth = rpcauth_create(flavor, clnt);
if (IS_ERR(auth)) {
dprintk("%s: couldn't create credcache!\n", __FUNCTION__);
- return PTR_ERR(auth);
+ 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 rpc_timeout timeparms;
+ rpc_authflavor_t authflavour;
+ int err = -EIO;
+
+ sb->s_blocksize_bits = 0;
+ sb->s_blocksize = 0;
+ server = NFS_SB(sb);
+ if (data->rsize != 0)
+ server->rsize = nfs_block_size(data->rsize, NULL);
+ if (data->wsize != 0)
+ server->wsize = nfs_block_size(data->wsize, NULL);
+ server->flags = data->flags & NFS_MOUNT_FLAGMASK;
+ server->caps = NFS_CAP_ATOMIC_OPEN;
+
+ server->acregmin = data->acregmin*HZ;
+ server->acregmax = data->acregmax*HZ;
+ server->acdirmin = data->acdirmin*HZ;
+ server->acdirmax = data->acdirmax*HZ;
+
+ server->rpc_ops = &nfs_v4_clientops;
+
+ nfs_init_timeout_values(&timeparms, data->proto, data->timeo, data->retrans);
+
+ server->retrans_timeo = timeparms.to_initval;
+ server->retrans_count = timeparms.to_retries;
+
+ /* Now create transport and client */
+ authflavour = RPC_AUTH_UNIX;
+ if (data->auth_flavourlen != 0) {
+ if (data->auth_flavourlen != 1) {
+ dprintk("%s: Invalid number of RPC auth flavours %d.\n",
+ __FUNCTION__, data->auth_flavourlen);
+ err = -EINVAL;
+ goto out_fail;
+ }
+ if (copy_from_user(&authflavour, data->auth_flavours, sizeof(authflavour))) {
+ err = -EFAULT;
+ goto out_fail;
}
}
+ 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;
+ }
+
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;
}