OS-881 To workaround OS-580 add support to only invalidate mappings from a single process

@@ -19,10 +19,11 @@
  * CDDL HEADER END
  */
 /*
  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
+ * Copyright 2012 Joyent, Inc.  All rights reserved.
  */
 
 #pragma ident   "%Z%%M% %I%     %E% SMI"
 
 #include <sys/mman.h>

@@ -549,11 +550,11 @@
         if (end <= start)
                 return (0);
 
         errno = 0;
         res = pr_memcntl(Pr, start, (end - start), MC_SYNC,
-            (caddr_t)(MS_ASYNC | MS_INVALIDATE), 0, 0);
+            (caddr_t)(MS_ASYNC | MS_INVALCURPROC), 0, 0);
         debug_high("pr_memcntl [%p-%p): %d", (void *)start, (void *)end, res);
 
         /*
          * EBUSY indicates none of the pages have backing store allocated, or
          * some pages were locked, which are less interesting than other