renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-15 08:44:14 +08:00
Code

NFS: Create an alloc_client rpc_op

Browse Source 
This gives NFS v4 a way to set up callbacks and sessions without v2 or
v3 having to do them as well.

Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Bryan Schumaker 2012-06-20 15:53:46 -04:00 committed by Trond Myklebust
parent cdb7ecedec
commit 6663ee7f81
7 changed files with 34 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
fs/nfs/client.c
View File

@ -147,7 +147,7 @@ struct nfs_client_initdata {
* Since these are allocated/deallocated very rarely, we don't
* bother putting them in a slab cache...
*/
static struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_init)
struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_init)
{
struct nfs_client *clp;
struct rpc_cred *cred;
@ -177,18 +177,6 @@ static struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_
clp->cl_proto = cl_init->proto;
clp->cl_net = get_net(cl_init->net);
#ifdef CONFIG_NFS_V4
err = nfs_get_cb_ident_idr(clp, cl_init->minorversion);
if (err)
goto error_cleanup;
spin_lock_init(&clp->cl_lock);
INIT_DELAYED_WORK(&clp->cl_renewd, nfs4_renew_state);
rpc_init_wait_queue(&clp->cl_rpcwaitq, "NFS client");
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))
clp->cl_machine_cred = cred;
@ -218,6 +206,30 @@ static void nfs4_shutdown_session(struct nfs_client *clp)
}
#endif /* CONFIG_NFS_V4_1 */
struct nfs_client *nfs4_alloc_client(const struct nfs_client_initdata *cl_init)
{
int err;
struct nfs_client *clp = nfs_alloc_client(cl_init);
if (IS_ERR(clp))
return clp;
err = nfs_get_cb_ident_idr(clp, cl_init->minorversion);
if (err)
goto error;
spin_lock_init(&clp->cl_lock);
INIT_DELAYED_WORK(&clp->cl_renewd, nfs4_renew_state);
rpc_init_wait_queue(&clp->cl_rpcwaitq, "NFS client");
clp->cl_state = 1 << NFS4CLNT_LEASE_EXPIRED;
clp->cl_minorversion = cl_init->minorversion;
clp->cl_mvops = nfs_v4_minor_ops[cl_init->minorversion];
return clp;
error:
kfree(clp);
return ERR_PTR(err);
}
/*
* Destroy the NFS4 callback service
*/
@ -588,7 +600,7 @@ nfs_get_client(const struct nfs_client_initdata *cl_init,
spin_unlock(&nn->nfs_client_lock);
new = nfs_alloc_client(cl_init);
new = cl_init->rpc_ops->alloc_client(cl_init);
} while (!IS_ERR(new));
dprintk("<-- nfs_get_client() Failed to find %s (%ld)\n",

1
fs/nfs/internal.h
View File

@ -148,6 +148,7 @@ extern void nfs_umount(const struct nfs_mount_request *info);
/* client.c */
extern const struct rpc_program nfs_program;
extern void nfs_clients_init(struct net *net);
extern struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *);
extern void nfs_cleanup_cb_ident_idr(struct net *);
extern void nfs_put_client(struct nfs_client *);

1
fs/nfs/nfs3proc.c
View File

@ -934,6 +934,7 @@ const struct nfs_rpc_ops nfs_v3_clientops = {
.close_context = nfs_close_context,
.have_delegation = nfs3_have_delegation,
.return_delegation = nfs3_return_delegation,
.alloc_client = nfs_alloc_client,
.init_client = nfs_init_client,
.free_client = nfs_free_client,
};

2
fs/nfs/nfs4_fs.h
View File

@ -303,6 +303,8 @@ extern const u32 nfs4_fs_locations_bitmap[2];
void nfs4_free_client(struct nfs_client *);
struct nfs_client *nfs4_alloc_client(const struct nfs_client_initdata *);
/* nfs4renewd.c */
extern void nfs4_schedule_state_renewal(struct nfs_client *);
extern void nfs4_renewd_prepare_shutdown(struct nfs_server *);

1
fs/nfs/nfs4proc.c
View File

@ -6806,6 +6806,7 @@ const struct nfs_rpc_ops nfs_v4_clientops = {
.open_context = nfs4_atomic_open,
.have_delegation = nfs4_have_delegation,
.return_delegation = nfs4_inode_return_delegation,
.alloc_client = nfs4_alloc_client,
.init_client = nfs4_init_client,
.free_client = nfs4_free_client,
};

1
fs/nfs/proc.c
View File

@ -790,6 +790,7 @@ const struct nfs_rpc_ops nfs_v2_clientops = {
.close_context = nfs_close_context,
.have_delegation = nfs_have_delegation,
.return_delegation = nfs_return_delegation,
.alloc_client = nfs_alloc_client,
.init_client = nfs_init_client,
.free_client = nfs_free_client,
};

2
include/linux/nfs_xdr.h
View File

@ -1353,6 +1353,7 @@ struct nfs_renamedata {
struct nfs_access_entry;
struct nfs_client;
struct rpc_timeout;
struct nfs_client_initdata;
/*
* RPC procedure vector for NFSv2/NFSv3 demuxing
@ -1424,6 +1425,7 @@ struct nfs_rpc_ops {
struct iattr *iattr);
int (*have_delegation)(struct inode *, fmode_t);
int (*return_delegation)(struct inode *);
struct nfs_client *(*alloc_client) (const struct nfs_client_initdata *);
struct nfs_client *
(*init_client) (struct nfs_client *, const struct rpc_timeout *,
const char *, rpc_authflavor_t);