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| author | NeilBrown | 2018-12-03 01:30:30 +0100 |
|---|---|---|
| committer | Anna Schumaker | 2018-12-19 19:52:45 +0100 |
| commit | a534ecb013bfc58a7f03653c7f2976bc341da98f (patch) | |
| tree | 55d3c1b4a992afc33c28b5d1d4e37943de4b1389 /include/linux/nfs_fs_sb.h | |
| parent | SUNRPC: remove machine_cred field from struct auth_cred (diff) | |
| download | kernel-qcow2-linux-a534ecb013bfc58a7f03653c7f2976bc341da98f.tar.gz kernel-qcow2-linux-a534ecb013bfc58a7f03653c7f2976bc341da98f.tar.xz kernel-qcow2-linux-a534ecb013bfc58a7f03653c7f2976bc341da98f.zip | |
NFSv4: add cl_root_cred for use when machine cred is not available.
NFSv4 state management tries a root credential when no machine
credential is available, as can happen with kerberos.
It does this by replacing the cl_machine_cred with a root credential.
This means that any user of the machine credential needs to take
a lock while getting a reference to the machine credential, which is
a little cumbersome.
So introduce an explicit cl_root_cred, and never free either
credential until client shutdown. This means that no locking
is needed to reference these credentials. Future patches
will make use of this.
This is only a temporary addition. both cl_machine_cred and
cl_root_cred will disappear later in the series.
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@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 0fc0b9135d46..fea51b44fe50 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -59,6 +59,7 @@ struct nfs_client { u32 cl_minorversion;/* NFSv4 minorversion */ struct rpc_cred *cl_machine_cred; + struct rpc_cred *cl_root_cred; /* Use when machine_cred is ineffective */ #if IS_ENABLED(CONFIG_NFS_V4) struct list_head cl_ds_clients; /* auth flavor data servers */ |