posix_acl: uapi header split

Export the base definitions and the xattr representation of POSIX ACLs
to user space.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h
index d5d3d74..5433eea 100644
--- a/include/linux/posix_acl.h
+++ b/include/linux/posix_acl.h
@@ -11,27 +11,7 @@
 #include <linux/bug.h>
 #include <linux/slab.h>
 #include <linux/rcupdate.h>
-
-#define ACL_UNDEFINED_ID	(-1)
-
-/* a_type field in acl_user_posix_entry_t */
-#define ACL_TYPE_ACCESS		(0x8000)
-#define ACL_TYPE_DEFAULT	(0x4000)
-
-/* e_tag entry in struct posix_acl_entry */
-#define ACL_USER_OBJ		(0x01)
-#define ACL_USER		(0x02)
-#define ACL_GROUP_OBJ		(0x04)
-#define ACL_GROUP		(0x08)
-#define ACL_MASK		(0x10)
-#define ACL_OTHER		(0x20)
-
-/* permissions in the e_perm field */
-#define ACL_READ		(0x04)
-#define ACL_WRITE		(0x02)
-#define ACL_EXECUTE		(0x01)
-//#define ACL_ADD		(0x08)
-//#define ACL_DELETE		(0x10)
+#include <uapi/linux/posix_acl.h>
 
 struct posix_acl_entry {
 	short			e_tag;