svn commit: r243659 - head/sys/vm

[Alan Cox]

Author: alc
Date: Wed Nov 28 18:29:34 2012
New Revision: 243659
URL: http://svnweb.freebsd.org/changeset/base/243659

Log:
  Add support for the (relatively) new object type OBJT_MGTDEVICE to
  vm_object_set_memattr().  Also, add a "safety belt" so that
  vm_object_set_memattr() doesn't silently modify undefined object types.
  
  Reviewed by:	kib
  MFC after:	10 days

Modified:
  head/sys/vm/vm_object.c

Modified: head/sys/vm/vm_object.c
==============================================================================
--- head/sys/vm/vm_object.c	Wed Nov 28 18:15:38 2012	(r243658)
+++ head/sys/vm/vm_object.c	Wed Nov 28 18:29:34 2012	(r243659)
@@ -301,6 +301,7 @@ vm_object_set_memattr(vm_object_t object
 	switch (object->type) {
 	case OBJT_DEFAULT:
 	case OBJT_DEVICE:
+	case OBJT_MGTDEVICE:
 	case OBJT_PHYS:
 	case OBJT_SG:
 	case OBJT_SWAP:
@@ -310,6 +311,9 @@ vm_object_set_memattr(vm_object_t object
 		break;
 	case OBJT_DEAD:
 		return (KERN_INVALID_ARGUMENT);
+	default:
+		panic("vm_object_set_memattr: object %p is of undefined type",
+		    object);
 	}
 	object->memattr = memattr;
 	return (KERN_SUCCESS);