svn commit: r206140 - head/sys/vm

[Alan Cox]

Author: alc
Date: Sat Apr  3 16:20:22 2010
New Revision: 206140
URL: http://svn.freebsd.org/changeset/base/206140

Log:
  Re-enable the call to pmap_release() by vmspace_dofree().  The accounting
  problem that is described in the comment has been addressed.
  
  Submitted by:	kib
  Tested by:	pho (a few months ago)
  MFC after:	6 weeks

Modified:
  head/sys/vm/vm_map.c

Modified: head/sys/vm/vm_map.c
==============================================================================
--- head/sys/vm/vm_map.c	Sat Apr  3 15:52:32 2010	(r206139)
+++ head/sys/vm/vm_map.c	Sat Apr  3 16:20:22 2010	(r206140)
@@ -313,6 +313,7 @@ vm_init2(void)
 static inline void
 vmspace_dofree(struct vmspace *vm)
 {
+
 	CTR1(KTR_VM, "vmspace_free: %p", vm);
 
 	/*
@@ -329,12 +330,8 @@ vmspace_dofree(struct vmspace *vm)
 	(void)vm_map_remove(&vm->vm_map, vm->vm_map.min_offset,
 	    vm->vm_map.max_offset);
 
-	/*
-	 * XXX Comment out the pmap_release call for now. The
-	 * vmspace_zone is marked as UMA_ZONE_NOFREE, and bugs cause
-	 * pmap.resident_count to be != 0 on exit sometimes.
-	 */
-/* 	pmap_release(vmspace_pmap(vm)); */
+	pmap_release(vmspace_pmap(vm));
+	vm->vm_map.pmap = NULL;
 	uma_zfree(vmspace_zone, vm);
 }