svn commit: r207097 - user/kmacy/head_page_lock_2/sys/amd64/amd64

[Kip Macy]

Author: kmacy
Date: Fri Apr 23 06:01:26 2010
New Revision: 207097
URL: http://svn.freebsd.org/changeset/base/207097

Log:
  - don't check page queue in get_pv_entry it no longer applies
  - add comment about pv_list in demote

Modified:
  user/kmacy/head_page_lock_2/sys/amd64/amd64/pmap.c

Modified: user/kmacy/head_page_lock_2/sys/amd64/amd64/pmap.c
==============================================================================
--- user/kmacy/head_page_lock_2/sys/amd64/amd64/pmap.c	Fri Apr 23 03:37:39 2010	(r207096)
+++ user/kmacy/head_page_lock_2/sys/amd64/amd64/pmap.c	Fri Apr 23 06:01:26 2010	(r207097)
@@ -2272,8 +2272,7 @@ get_pv_entry(pmap_t pmap)
 		}
 	}
 	/* No free items, allocate another chunk */
-	m = vm_page_alloc(NULL, colour, (pq == &vm_page_queues[PQ_ACTIVE] ?
-	    VM_ALLOC_SYSTEM : VM_ALLOC_NORMAL) | VM_ALLOC_NOOBJ |
+	m = vm_page_alloc(NULL, colour, VM_ALLOC_NORMAL | VM_ALLOC_NOOBJ |
 	    VM_ALLOC_WIRED);
 	if (m == NULL) {
 		PV_STAT(pc_chunk_tryfail++);
@@ -2738,6 +2737,11 @@ pmap_remove_pde(pmap_t pmap, pd_entry_t 
 			PA_UNLOCK(pa);
 	}
 	if (pmap == kernel_pmap) {
+		/*
+		 *
+		 * Our inability to fail here implies that we should
+		 * always be passed a pv_list if pmap == kernel_pmap
+		 */
 		if (!pmap_demote_pde(pmap, pdq, sva, pv_list))
 			panic("pmap_remove_pde: failed demotion");
 	} else {