svn commit: r214879 - head/sys/sparc64/sparc64

[Marius Strobl]

Author: marius
Date: Sat Nov  6 13:58:24 2010
New Revision: 214879
URL: http://svn.freebsd.org/changeset/base/214879

Log:
  Implement pmap_is_prefaultable().
  
  Reviewed by:	alc (with bugfix)

Modified:
  head/sys/sparc64/sparc64/pmap.c

Modified: head/sys/sparc64/sparc64/pmap.c
==============================================================================
--- head/sys/sparc64/sparc64/pmap.c	Sat Nov  6 13:46:58 2010	(r214878)
+++ head/sys/sparc64/sparc64/pmap.c	Sat Nov  6 13:58:24 2010	(r214879)
@@ -1960,8 +1960,12 @@ pmap_is_modified(vm_page_t m)
 boolean_t
 pmap_is_prefaultable(pmap_t pmap, vm_offset_t addr)
 {
+	boolean_t rv;
 
-	return (FALSE);
+	PMAP_LOCK(pmap);
+	rv = tsb_tte_lookup(pmap, addr) == NULL;
+	PMAP_UNLOCK(pmap);
+	return (rv);
 }
 
 /*