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NFSv41: Clean up the NFSv4.1 minor version specific operations 

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
hifive-unleashed-5.1
Trond Myklebust 2010-06-16 09:52:26 -04:00
parent a2118c33aa
commit 97dc135947
4 changed files with 39 additions and 14 deletions
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14
fs/nfs/client.c
View File

@ -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;

11
fs/nfs/nfs4_fs.h
View File

@ -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];

21
fs/nfs/nfs4proc.c
View File

@ -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,

7
include/linux/nfs_fs_sb.h
View File

@ -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