SUNRPC: add 'struct cred *' to auth_cred and rpc_cred
The SUNRPC credential framework was put together before
Linux has 'struct cred'. Now that we have it, it makes sense to
use it.
This first step just includes a suitable 'struct cred *' pointer
in every 'struct auth_cred' and almost every 'struct rpc_cred'.
The rpc_cred used for auth_null has a NULL 'struct cred *' as nothing
else really makes sense.
For rpc_cred, the pointer is reference counted.
For auth_cred it isn't. struct auth_cred are either allocated on
the stack, in which case the thread owns a reference to the auth,
or are part of 'struct generic_cred' in which case gc_base owns the
reference, and "acred" shares it.
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
diff --git a/include/linux/sunrpc/auth.h b/include/linux/sunrpc/auth.h
index c4db942..1f95bd6 100644
--- a/include/linux/sunrpc/auth.h
+++ b/include/linux/sunrpc/auth.h
@@ -46,6 +46,7 @@ enum {
/* Work around the lack of a VFS credential */
struct auth_cred {
+ const struct cred *cred;
kuid_t uid;
kgid_t gid;
struct group_info *group_info;
@@ -68,6 +69,7 @@ struct rpc_cred {
unsigned long cr_expire; /* when to gc */
unsigned long cr_flags; /* various flags */
refcount_t cr_count; /* ref count */
+ const struct cred *cr_cred;
kuid_t cr_uid;