[src/trunk]: src/sys/uvm amap_cow_now: just free the fresh anon on error, no ...

[rmind <rmind%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/afe5787102d9
branches:  trunk
changeset: 768507:afe5787102d9
user:      rmind <rmind%NetBSD.org@localhost>
date:      Wed Aug 17 20:46:27 2011 +0000

description:
amap_cow_now: just free the fresh anon on error, no need to dispose it.

diffstat:

 sys/uvm/uvm_amap.c |  14 ++++----------
 1 files changed, 4 insertions(+), 10 deletions(-)

diffs (38 lines):

diff -r 46953b4b0eec -r afe5787102d9 sys/uvm/uvm_amap.c
--- a/sys/uvm/uvm_amap.c        Wed Aug 17 19:28:36 2011 +0000
+++ b/sys/uvm/uvm_amap.c        Wed Aug 17 20:46:27 2011 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: uvm_amap.c,v 1.102 2011/08/06 17:25:03 rmind Exp $     */
+/*     $NetBSD: uvm_amap.c,v 1.103 2011/08/17 20:46:27 rmind Exp $     */
 
 /*
  * Copyright (c) 1997 Charles D. Cranor and Washington University.
@@ -35,7 +35,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: uvm_amap.c,v 1.102 2011/08/06 17:25:03 rmind Exp $");
+__KERNEL_RCSID(0, "$NetBSD: uvm_amap.c,v 1.103 2011/08/17 20:46:27 rmind Exp $");
 
 #include "opt_uvmhist.h"
 
@@ -1039,17 +1039,11 @@
                        npg = NULL;
                }
                if (nanon == NULL || npg == NULL) {
-
-                       /*
-                        * XXXCDC: we should cause fork to fail, but we can't.
-                        */
-
+                       amap_unlock(amap);
                        if (nanon) {
                                nanon->an_ref--;
                                KASSERT(nanon->an_ref == 0);
-                               uvm_anon_freelst(amap, nanon);
-                       } else {
-                               amap_unlock(amap);
+                               uvm_anon_free(nanon);
                        }
                        uvm_wait("cownowpage");
                        goto ReStart;