NFS/NFSD/SUNRPC: replace generic creds with 'struct cred'.
SUNRPC has two sorts of credentials, both of which appear as
"struct rpc_cred".
There are "generic credentials" which are supplied by clients
such as NFS and passed in 'struct rpc_message' to indicate
which user should be used to authorize the request, and there
are low-level credentials such as AUTH_NULL, AUTH_UNIX, AUTH_GSS
which describe the credential to be sent over the wires.
This patch replaces all the generic credentials by 'struct cred'
pointers - the credential structure used throughout Linux.
For machine credentials, there is a special 'struct cred *' pointer
which is statically allocated and recognized where needed as
having a special meaning. A look-up of a low-level cred will
map this to a machine credential.
Signed-off-by: NeilBrown <neilb@suse.com>
Acked-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index c1452f8..76f33df 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -1249,7 +1249,7 @@ bool nfs_ctx_key_to_expire(struct nfs_open_context *ctx, struct inode *inode)
struct rpc_auth *auth = NFS_SERVER(inode)->client->cl_auth;
struct rpc_cred *cred = ctx->ll_cred;
struct auth_cred acred = {
- .cred = ctx->cred->cr_cred,
+ .cred = ctx->cred,
};
if (cred && !cred->cr_ops->crmatch(&acred, cred, 0)) {