add macros for vm_map_set_recursive and vm_map_clear_recursive

SCCS-vsn: sys/vm/vm_map.h 8.5

diff --git a/usr/src/sys/vm/vm_map.h b/usr/src/sys/vm/vm_map.h
index c0d0bb4..c8cbc95 100644 (file)
--- a/usr/src/sys/vm/vm_map.h
+++ b/usr/src/sys/vm/vm_map.h
@@ -7,7 +7,7 @@
  *
  * %sccs.include.redist.c%
  *
  *
  * %sccs.include.redist.c%
  *

- *     @(#)vm_map.h    8.4 (Berkeley) %G%
+ *     @(#)vm_map.h    8.5 (Berkeley) %G%

  *
  *
  * Copyright (c) 1987, 1990 Carnegie-Mellon University.
  *
  *
  * Copyright (c) 1987, 1990 Carnegie-Mellon University.


@@ -142,7 +142,16 @@ extern struct proc *curproc;       /* XXX */
 #define        vm_map_unlock(map)      lockmgr(&(map)->lock, LK_RELEASE, curproc)
 #define        vm_map_lock_read(map)   lockmgr(&(map)->lock, LK_SHARED, curproc)
 #define        vm_map_unlock_read(map) lockmgr(&(map)->lock, LK_RELEASE, curproc)
 #define        vm_map_unlock(map)      lockmgr(&(map)->lock, LK_RELEASE, curproc)
 #define        vm_map_lock_read(map)   lockmgr(&(map)->lock, LK_SHARED, curproc)
 #define        vm_map_unlock_read(map) lockmgr(&(map)->lock, LK_RELEASE, curproc)

-
+#define vm_map_set_recursive(map) { \
+       simple_lock(&(map)->lk_interlock); \
+       (map)->lk_flags |= LK_CANRECURSE; \
+       simple_unlock(&(map)->lk_interlock); \
+}
+#define vm_map_clear_recursive(map) { \
+       simple_lock(&(map)->lk_interlock); \
+       (map)->lk_flags &= ~LK_CANRECURSE; \
+       simple_unlock(&(map)->lk_interlock); \
+}

 /*
  *     Functions implemented as macros
  */
 /*
  *     Functions implemented as macros
  */