[PATCH] kNFSd: Stub support for name lookup

NFSv4 need to be able to make from user/group name
to user/group id.  This include file contains some
simple stubs to do this.  They will be replaced with
something that really works later.

include/linux/sunrpc/name_lookup.h

+
+/*
+ * map between user/group name and id for a given 'client' 
+ */
+
+struct name_ent {
+	char name[20];
+};
+static inline int name_get_user(int uid, struct name_ent **namep)
+{
+	struct name_ent *n = kmalloc(sizeof(*n),GFP_KERNEL);
+	if (n) sprintf(n->name, "%d",uid);
+	*namep = n;
+	return n ? 0 : -ENOMEM;
+}
+static inline int name_get_group(int uid, struct name_ent **namep)
+{
+	struct name_ent *n = kmalloc(sizeof(*n),GFP_KERNEL);
+	if (n) sprintf(n->name, "%d",uid);
+	*namep = n;
+	return n ? 0 : -ENOMEM;
+}
+static inline int name_get_uid(char *name, int name_len, int *uidp)
+{
+	*uidp = simple_strtoul(name, NULL, 0);
+	return 0;
+}
+
+static inline int name_get_gid(char *name, int name_len, int *gidp)
+{
+	*gidp = simple_strtoul(name, NULL, 0);
+	return 0;
+}
+
+static inline void name_put(struct name_ent *ent) 
+{
+	kfree(ent);
+}