diff options
| author | Peng Tao <tao.peng@primarydata.com> | 2014-05-30 18:15:57 +0800 |
|---|---|---|
| committer | Tom Haynes <loghyr@primarydata.com> | 2015-02-03 11:06:34 -0800 |
| commit | 1a04c6e1a26a43305fe124a0978a3e4be861af89 (patch) | |
| tree | 9ea569914b07094f45cf45c45e92a883eec07386 /fs/nfs | |
| parent | 39280a5ae8443dcc1ab3bb5ebc205aab0855b849 (diff) | |
| download | linux-1a04c6e1a26a43305fe124a0978a3e4be861af89.tar.bz2 | |
nfsv3: introduce nfs3_set_ds_client
The flexfiles layout wants to create DS connection over NFSv3.
Add nfs3_set_ds_client to allow that to happen.
Signed-off-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Tom Haynes <Thomas.Haynes@primarydata.com>
Diffstat (limited to 'fs/nfs')
| -rw-r--r-- | fs/nfs/internal.h | 4 | ||||
| -rw-r--r-- | fs/nfs/nfs3_fs.h | 2 | ||||
| -rw-r--r-- | fs/nfs/nfs3client.c | 34 | ||||
| -rw-r--r-- | fs/nfs/nfs3super.c | 2 |
4 files changed, 41 insertions, 1 deletions
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 7d7c36ff09fa..7332ba1f693b 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -193,6 +193,10 @@ extern struct nfs_client *nfs4_set_ds_client(struct nfs_client* mds_clp, rpc_authflavor_t au_flavor); extern struct rpc_clnt *nfs4_find_or_create_ds_client(struct nfs_client *, struct inode *); +extern struct nfs_client *nfs3_set_ds_client(struct nfs_client *mds_clp, + const struct sockaddr *ds_addr, int ds_addrlen, + int ds_proto, unsigned int ds_timeo, + unsigned int ds_retrans, rpc_authflavor_t au_flavor); #ifdef CONFIG_PROC_FS extern int __init nfs_fs_proc_init(void); extern void nfs_fs_proc_exit(void); diff --git a/fs/nfs/nfs3_fs.h b/fs/nfs/nfs3_fs.h index 333ae4068506..e134d6548ab7 100644 --- a/fs/nfs/nfs3_fs.h +++ b/fs/nfs/nfs3_fs.h @@ -30,5 +30,7 @@ struct nfs_server *nfs3_create_server(struct nfs_mount_info *, struct nfs_subver struct nfs_server *nfs3_clone_server(struct nfs_server *, struct nfs_fh *, struct nfs_fattr *, rpc_authflavor_t); +/* nfs3super.c */ +extern struct nfs_subversion nfs_v3; #endif /* __LINUX_FS_NFS_NFS3_FS_H */ diff --git a/fs/nfs/nfs3client.c b/fs/nfs/nfs3client.c index 8c1b437c5403..52e2344bf9a1 100644 --- a/fs/nfs/nfs3client.c +++ b/fs/nfs/nfs3client.c @@ -64,3 +64,37 @@ struct nfs_server *nfs3_clone_server(struct nfs_server *source, nfs_init_server_aclclient(server); return server; } + +/* + * Set up a pNFS Data Server client over NFSv3. + * + * Return any existing nfs_client that matches server address,port,version + * and minorversion. + * + * For a new nfs_client, use a soft mount (default), a low retrans and a + * low timeout interval so that if a connection is lost, we retry through + * the MDS. + */ +struct nfs_client *nfs3_set_ds_client(struct nfs_client *mds_clp, + const struct sockaddr *ds_addr, int ds_addrlen, + int ds_proto, unsigned int ds_timeo, unsigned int ds_retrans, + rpc_authflavor_t au_flavor) +{ + struct nfs_client_initdata cl_init = { + .addr = ds_addr, + .addrlen = ds_addrlen, + .nfs_mod = &nfs_v3, + .proto = ds_proto, + .net = mds_clp->cl_net, + }; + struct rpc_timeout ds_timeout; + struct nfs_client *clp; + + /* Use the MDS nfs_client cl_ipaddr. */ + nfs_init_timeout_values(&ds_timeout, ds_proto, ds_timeo, ds_retrans); + clp = nfs_get_client(&cl_init, &ds_timeout, mds_clp->cl_ipaddr, + au_flavor); + + return clp; +} +EXPORT_SYMBOL_GPL(nfs3_set_ds_client); diff --git a/fs/nfs/nfs3super.c b/fs/nfs/nfs3super.c index 6af29c2da352..5c4394e4656b 100644 --- a/fs/nfs/nfs3super.c +++ b/fs/nfs/nfs3super.c @@ -7,7 +7,7 @@ #include "nfs3_fs.h" #include "nfs.h" -static struct nfs_subversion nfs_v3 = { +struct nfs_subversion nfs_v3 = { .owner = THIS_MODULE, .nfs_fs = &nfs_fs_type, .rpc_vers = &nfs_version3, |