[src/yamt-pagecache]: src/sys/arch/x86/x86 share a lock among pmap uobjs

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

details:   https://anonhg.NetBSD.org/src/rev/1f9774902df3
branches:  yamt-pagecache
changeset: 770837:1f9774902df3
user:      yamt <yamt%NetBSD.org@localhost>
date:      Thu Nov 24 15:26:56 2011 +0000

description:
share a lock among pmap uobjs

diffstat:

 sys/arch/x86/x86/pmap.c |  8 ++------
 1 files changed, 2 insertions(+), 6 deletions(-)

diffs (36 lines):

diff -r 2a5c48509f4a -r 1f9774902df3 sys/arch/x86/x86/pmap.c
--- a/sys/arch/x86/x86/pmap.c   Sun Nov 20 10:52:33 2011 +0000
+++ b/sys/arch/x86/x86/pmap.c   Thu Nov 24 15:26:56 2011 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pmap.c,v 1.137.2.4 2011/11/18 00:51:28 yamt Exp $      */
+/*     $NetBSD: pmap.c,v 1.137.2.5 2011/11/24 15:26:56 yamt Exp $      */
 
 /*-
  * Copyright (c) 2008, 2010 The NetBSD Foundation, Inc.
@@ -171,7 +171,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.137.2.4 2011/11/18 00:51:28 yamt Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.137.2.5 2011/11/24 15:26:56 yamt Exp $");
 
 #include "opt_user_ldt.h"
 #include "opt_lockdebug.h"
@@ -1781,8 +1781,6 @@
 
        obj = &pmap->pm_obj[lidx];
        pmap_stats_update(pmap, -1, 0);
-       if (lidx != 0)
-               mutex_enter(obj->vmobjlock);
        if (pmap->pm_ptphint[lidx] == ptp)
                pmap->pm_ptphint[lidx] = NULL;
        ptp->wire_count = 0;
@@ -1791,8 +1789,6 @@
        KASSERT((l->l_pflag & LP_INTR) == 0);
        VM_PAGE_TO_PP(ptp)->pp_link = l->l_md.md_gc_ptp;
        l->l_md.md_gc_ptp = ptp;
-       if (lidx != 0)
-               mutex_exit(obj->vmobjlock);
 }
 
 static void