Author: marius
Date: Fri Nov 19 17:04:55 2010
New Revision: 215530
URL: http://svn.freebsd.org/changeset/base/215530
Log:
MFC: r214879
Implement pmap_is_prefaultable().
Reviewed by: alc (with bugfix)
Modified:
stable/8/sys/sparc64/sparc64/pmap.c
Directory Properties:
stable/8/sys/ (props changed)
stable/8/sys/amd64/include/xen/ (props changed)
stable/8/sys/cddl/contrib/opensolaris/ (props changed)
stable/8/sys/contrib/dev/acpica/ (props changed)
stable/8/sys/contrib/pf/ (props changed)
stable/8/sys/dev/xen/xenpci/ (props changed)
Modified: stable/8/sys/sparc64/sparc64/pmap.c
==============================================================================
--- stable/8/sys/sparc64/sparc64/pmap.c Fri Nov 19 16:52:18 2010
(r215529)
+++ stable/8/sys/sparc64/sparc64/pmap.c Fri Nov 19 17:04:55 2010
(r215530)
@@ -1928,8 +1928,12 @@ 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);
}
void
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