From owner-svn-src-head@FreeBSD.ORG  Wed Mar 24 18:04:25 2010
Return-Path: <owner-svn-src-head@FreeBSD.ORG>
Delivered-To: svn-src-head@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id C0FD51065672;
	Wed, 24 Mar 2010 18:04:25 +0000 (UTC) (envelope-from mav@FreeBSD.org)
Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c])
	by mx1.freebsd.org (Postfix) with ESMTP id B01558FC13;
	Wed, 24 Mar 2010 18:04:25 +0000 (UTC)
Received: from svn.freebsd.org (localhost [127.0.0.1])
	by svn.freebsd.org (8.14.3/8.14.3) with ESMTP id o2OI4P5k073359;
	Wed, 24 Mar 2010 18:04:25 GMT (envelope-from mav@svn.freebsd.org)
Received: (from mav@localhost)
	by svn.freebsd.org (8.14.3/8.14.3/Submit) id o2OI4PNJ073357;
	Wed, 24 Mar 2010 18:04:25 GMT (envelope-from mav@svn.freebsd.org)
Message-Id: <201003241804.o2OI4PNJ073357@svn.freebsd.org>
From: Alexander Motin <mav@FreeBSD.org>
Date: Wed, 24 Mar 2010 18:04:25 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
	svn-src-head@freebsd.org
X-SVN-Group: head
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Cc: 
Subject: svn commit: r205619 - head/sys/geom
X-BeenThere: svn-src-head@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: SVN commit messages for the src tree for head/-current
	<svn-src-head.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
	<mailto:svn-src-head-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-head>
List-Post: <mailto:svn-src-head@freebsd.org>
List-Help: <mailto:svn-src-head-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
	<mailto:svn-src-head-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 24 Mar 2010 18:04:25 -0000

Author: mav
Date: Wed Mar 24 18:04:25 2010
New Revision: 205619
URL: http://svn.freebsd.org/changeset/base/205619

Log:
  Do not fetch precise time of request start when stats collection disabled.
  
  Reviewed by:	pjd, phk

Modified:
  head/sys/geom/geom_io.c

Modified: head/sys/geom/geom_io.c
==============================================================================
--- head/sys/geom/geom_io.c	Wed Mar 24 17:38:08 2010	(r205618)
+++ head/sys/geom/geom_io.c	Wed Mar 24 18:04:25 2010	(r205619)
@@ -443,7 +443,10 @@ g_io_request(struct bio *bp, struct g_co
 	    ("Bio already on queue bp=%p", bp));
 	bp->bio_flags |= BIO_ONQUEUE;
 
-	binuptime(&bp->bio_t0);
+	if (g_collectstats)
+		binuptime(&bp->bio_t0);
+	else
+		getbinuptime(&bp->bio_t0);
 
 	/*
 	 * The statistics collection is lockless, as such, but we