Add a new type of VM object: OBJT_SG. An OBJT_SG object is very similar to

a device pager (OBJT_DEVICE) object in that it uses fictitious pages to
provide aliases to other memory addresses.  The primary difference is that
it uses an sglist(9) to determine the physical addresses for a given offset
into the object instead of invoking the d_mmap() method in a device driver.

Reviewed by:	alc
Approved by:	re (kensmith)
MFC after:	2 weeks

1 files changed, 1 insertions, 1 deletions

diff --git a/sys/vm/vm.h b/sys/vm/vm.h
index 9159e93..b547514 100644
--- a/sys/vm/vm.h
+++ b/sys/vm/vm.h
@@ -89,7 +89,7 @@ typedef u_char vm_prot_t;	/* protection codes */
 #define	VM_PROT_DEFAULT		VM_PROT_ALL
 
 enum obj_type { OBJT_DEFAULT, OBJT_SWAP, OBJT_VNODE, OBJT_DEVICE, OBJT_PHYS,
-		OBJT_DEAD };
+		OBJT_DEAD, OBJT_SG };
 typedef u_char objtype_t;
 
 union vm_map_object;