Signed-off-by: Trond Myklebust <Trond.Myklebust@xxxxxxxxxx>
---
fs/nfs/client.c | 14 ++++++--------
fs/nfs/nfs4_fs.h | 11 +++++++++++
fs/nfs/nfs4proc.c | 21 ++++++++++++++++++++-
include/linux/nfs_fs_sb.h | 7 ++-----
4 files changed, 39 insertions(+), 14 deletions(-)
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 7ec9b34..123fcbd 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 */
@@ -1448,7 +1446,7 @@ 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 7e0483c..8530782 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)
@@ -5352,6 +5352,18 @@ 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
*/
@@ -5377,6 +5389,13 @@ 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,
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index d6e10a4..c82ee7c 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -15,6 +15,7 @@ struct nlm_host;
struct nfs4_sequence_args;
struct nfs4_sequence_res;
struct nfs_server;
+struct nfs4_minor_version_ops;
/*
* The nfs_client identifies our client state to the server.
@@ -70,11 +71,7 @@ struct nfs_client {
*/
char cl_ipaddr[48];
unsigned char cl_id_uniquifier;
- int (* cl_call_sync)(struct nfs_server *server,
- struct rpc_message *msg,
- struct nfs4_sequence_args *args,
- struct nfs4_sequence_res *res,
- int cache_reply);
+ const struct nfs4_minor_version_ops *cl_mvops;
#endif /* CONFIG_NFS_V4 */
#ifdef CONFIG_NFS_V4_1
--
1.7.0.1
--
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