uidgid: Split out uidgid_types.h

More sched.h dependency pruning.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Reviewed-by: Christian Brauner <brauner@kernel.org>

include/linux/sched.h

@@ -37,6 +37,7 @@
 #include <linux/kcsan.h>
 #include <linux/rv.h>
 #include <linux/livepatch_sched.h>
+#include <linux/uidgid_types.h>
 #include <asm/kmap_size.h>
 
 /* task_struct member predeclarations (sorted alphabetically): */

include/linux/uidgid.h

@@ -12,21 +12,12 @@
  * to detect when we overlook these differences.
  *
  */
-#include <linux/types.h>
+#include <linux/uidgid_types.h>
 #include <linux/highuid.h>
 
 struct user_namespace;
 extern struct user_namespace init_user_ns;
 
-typedef struct {
-	uid_t val;
-} kuid_t;
-
-
-typedef struct {
-	gid_t val;
-} kgid_t;
-
 #define KUIDT_INIT(value) (kuid_t){ value }
 #define KGIDT_INIT(value) (kgid_t){ value }
 

include/linux/uidgid_types.h

+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _LINUX_UIDGID_TYPES_H
+#define _LINUX_UIDGID_TYPES_H
+
+#include <linux/types.h>
+
+typedef struct {
+	uid_t val;
+} kuid_t;
+
+typedef struct {
+	gid_t val;
+} kgid_t;
+
+#endif /* _LINUX_UIDGID_TYPES_H */