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authorTrond Myklebust <Trond.Myklebust@netapp.com>2010-06-16 09:52:26 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2010-06-22 13:24:02 -0400
commit97dc135947181a6670949a480da56c3ebf8d3715 (patch)
tree2e5a766941516f8bbcec3b816901a76a45fc78c5 /fs/nfs
parenta2118c33aad6c447ad5e0a60cfaea3939b52ce0a (diff)
downloadop-kernel-dev-97dc135947181a6670949a480da56c3ebf8d3715.zip
op-kernel-dev-97dc135947181a6670949a480da56c3ebf8d3715.tar.gz
NFSv41: Clean up the NFSv4.1 minor version specific operations
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs')
-rw-r--r--fs/nfs/client.c14
-rw-r--r--fs/nfs/nfs4_fs.h11
-rw-r--r--fs/nfs/nfs4proc.c21
3 files changed, 37 insertions, 9 deletions
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index d25b525..1df708f 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -150,6 +150,7 @@ static struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_
clp->cl_boot_time = CURRENT_TIME;
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))
@@ -178,7 +179,7 @@ static void nfs4_clear_client_minor_version(struct nfs_client *clp)
clp->cl_session = NULL;
}
- clp->cl_call_sync = _nfs4_call_sync;
+ clp->cl_mvops = nfs_v4_minor_ops[0];
#endif /* CONFIG_NFS_V4_1 */
}
@@ -188,7 +189,7 @@ static void nfs4_clear_client_minor_version(struct nfs_client *clp)
static void nfs4_destroy_callback(struct nfs_client *clp)
{
if (__test_and_clear_bit(NFS_CS_CALLBACK, &clp->cl_res_state))
- nfs_callback_down(clp->cl_minorversion);
+ nfs_callback_down(clp->cl_mvops->minor_version);
}
static void nfs4_shutdown_client(struct nfs_client *clp)
@@ -1126,7 +1127,7 @@ static int nfs4_init_callback(struct nfs_client *clp)
return error;
}
- error = nfs_callback_up(clp->cl_minorversion,
+ error = nfs_callback_up(clp->cl_mvops->minor_version,
clp->cl_rpcclient->cl_xprt);
if (error < 0) {
dprintk("%s: failed to start callback. Error = %d\n",
@@ -1143,10 +1144,8 @@ static int nfs4_init_callback(struct nfs_client *clp)
*/
static int nfs4_init_client_minor_version(struct nfs_client *clp)
{
- clp->cl_call_sync = _nfs4_call_sync;
-
#if defined(CONFIG_NFS_V4_1)
- if (clp->cl_minorversion) {
+ if (clp->cl_mvops->minor_version) {
struct nfs4_session *session = NULL;
/*
* Create the session and mark it expired.
@@ -1158,7 +1157,6 @@ static int nfs4_init_client_minor_version(struct nfs_client *clp)
return -ENOMEM;
clp->cl_session = session;
- clp->cl_call_sync = _nfs4_call_sync_session;
}
#endif /* CONFIG_NFS_V4_1 */
@@ -1454,7 +1452,7 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
data->authflavor,
parent_server->client->cl_xprt->prot,
parent_server->client->cl_timeout,
- parent_client->cl_minorversion);
+ parent_client->cl_mvops->minor_version);
if (error < 0)
goto error;
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index bb1e955..5b01705 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -52,6 +52,16 @@ enum nfs4_session_state {
NFS4_SESSION_DRAINING,
};
+struct nfs4_minor_version_ops {
+ u32 minor_version;
+
+ int (*call_sync)(struct nfs_server *server,
+ struct rpc_message *msg,
+ struct nfs4_sequence_args *args,
+ struct nfs4_sequence_res *res,
+ int cache_reply);
+};
+
/*
* struct rpc_sequence ensures that RPC calls are sent in the exact
* order that they appear on the list.
@@ -260,6 +270,7 @@ static inline int nfs4_init_session(struct nfs_server *server)
}
#endif /* CONFIG_NFS_V4_1 */
+extern const struct nfs4_minor_version_ops *nfs_v4_minor_ops[];
extern struct nfs4_state_maintenance_ops *nfs4_state_renewal_ops[];
extern const u32 nfs4_fattr_bitmap[2];
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index fc972c6..a938daf 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -667,7 +667,7 @@ int _nfs4_call_sync(struct nfs_server *server,
}
#define nfs4_call_sync(server, msg, args, res, cache_reply) \
- (server)->nfs_client->cl_call_sync((server), (msg), &(args)->seq_args, \
+ (server)->nfs_client->cl_mvops->call_sync((server), (msg), &(args)->seq_args, \
&(res)->seq_res, (cache_reply))
static void update_changeattr(struct inode *dir, struct nfs4_change_info *cinfo)
@@ -5353,6 +5353,18 @@ struct nfs4_state_maintenance_ops nfs41_state_renewal_ops = {
};
#endif
+static const struct nfs4_minor_version_ops nfs_v4_0_minor_ops = {
+ .minor_version = 0,
+ .call_sync = _nfs4_call_sync,
+};
+
+#if defined(CONFIG_NFS_V4_1)
+static const struct nfs4_minor_version_ops nfs_v4_1_minor_ops = {
+ .minor_version = 1,
+ .call_sync = _nfs4_call_sync_session,
+};
+#endif
+
/*
* Per minor version reboot and network partition recovery ops
*/
@@ -5378,6 +5390,13 @@ struct nfs4_state_maintenance_ops *nfs4_state_renewal_ops[] = {
#endif
};
+const struct nfs4_minor_version_ops *nfs_v4_minor_ops[] = {
+ [0] = &nfs_v4_0_minor_ops,
+#if defined(CONFIG_NFS_V4_1)
+ [1] = &nfs_v4_1_minor_ops,
+#endif
+};
+
static const struct inode_operations nfs4_file_inode_operations = {
.permission = nfs_permission,
.getattr = nfs_getattr,
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