diff options
| author | Andy Adamson <andros@netapp.com> | 2013-09-06 14:14:00 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-09-06 14:49:16 -0400 |
| commit | 0e20162ed1e9a639fc61d62c71327169fb1a1970 (patch) | |
| tree | 299ac444cffc3087c5221c30bce9fbbf4ba9d133 /include/linux/nfs_fs_sb.h | |
| parent | 4109bb7496640aa97a12904527ba8e3a19b7ce7a (diff) | |
| download | lwn-0e20162ed1e9a639fc61d62c71327169fb1a1970.tar.gz lwn-0e20162ed1e9a639fc61d62c71327169fb1a1970.zip | |
NFSv4.1 Use MDS auth flavor for data server connection
Commit 4edaa308 "NFS: Use "krb5i" to establish NFSv4 state whenever possible"
uses the nfs_client cl_rpcclient for all state management operations, and
will use krb5i or auth_sys with no regard to the mount command authflavor
choice.
The MDS, as any NFSv4.1 mount point, uses the nfs_server rpc client for all
non-state management operations with a different nfs_server for each fsid
encountered traversing the mount point, each with a potentially different
auth flavor.
pNFS data servers are not mounted in the normal sense as there is no associated
nfs_server structure. Data servers can also export multiple fsids, each with
a potentially different auth flavor.
Data servers need to use the same authflavor as the MDS server rpc client for
non-state management operations. Populate a list of rpc clients with the MDS
server rpc client auth flavor for the DS to use.
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include/linux/nfs_fs_sb.h')
| -rw-r--r-- | include/linux/nfs_fs_sb.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index e8ff178c3d33..b8cedced50c9 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -56,6 +56,7 @@ struct nfs_client { struct rpc_cred *cl_machine_cred; #if IS_ENABLED(CONFIG_NFS_V4) + struct list_head cl_ds_clients; /* auth flavor data servers */ u64 cl_clientid; /* constant */ nfs4_verifier cl_confirm; /* Clientid verifier */ unsigned long cl_state; |